/* ══════════════════════════════════════════════════════════════
   HEKA Inventario — Design System v3
   Aesthetic: Legal / Corporate Precision — Sharp, Authoritative
   Font: DM Sans + DM Mono for data
   Palette: Ink Black · Steel Blue · Pure White · Warm Accents
══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;0,9..40,800;1,9..40,400&family=DM+Mono:wght@400;500&display=swap');

/* ── Variables — Light Mode ──────────────────────────────── */
:root {
    color-scheme: light;
    --heka-blue:     #2563eb;
    --heka-blue-dk:  #1d4ed8;
    --heka-blue-lt:  #dbeafe;
    --heka-black:    #0f172a;
    --heka-ink:      #1e293b;

    --bg:            #f8fafc;
    --bg-card:       #ffffff;
    --bg-sidebar:    #ffffff;
    --bg-sidebar-2:  #f1f5f9;
    --bg-input:      #f1f5f9;

    --text:          #0f172a;
    --text-muted:    #64748b;
    --text-light:    #94a3b8;
    --text-inverse:  #ffffff;

    --sidebar-text:        #0f172a;
    --sidebar-text-muted:  #475569;
    --sidebar-border:      rgba(15,23,42,0.08);
    --sidebar-hover:       rgba(37,99,235,0.08);
    --sidebar-active-bg:   linear-gradient(135deg, rgba(37,99,235,0.14) 0%, rgba(59,130,246,0.08) 100%);
    --sidebar-active-text: #1d4ed8;
    --sidebar-card:        rgba(255,255,255,0.84);

    --border:        #e2e8f0;
    --border-strong: #cbd5e1;

    --success:     #10b981;
    --success-lt:  #d1fae5;
    --warning:     #f59e0b;
    --warning-lt:  #fef3c7;
    --danger:      #ef4444;
    --danger-lt:   #fee2e2;
    --info:        #0ea5e9;
    --info-lt:     #cffafe;
    --purple:      #8b5cf6;
    --purple-lt:   #f3e8ff;

    --radius-xs:  6px;
    --radius-sm:  10px;
    --radius:     14px;
    --radius-lg:  18px;
    --radius-xl:  28px;

    --shadow-xs:  0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm:  0 2px 8px rgba(0,0,0,0.06);
    --shadow:     0 8px 20px rgba(0,0,0,0.1);
    --shadow-lg:  0 16px 40px rgba(0,0,0,0.12);
    --shadow-xl:  0 24px 64px rgba(0,0,0,0.16);

    --sidebar-w:   260px;
    --topbar-h:    56px;

    --transition:  all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Variables — Dark Mode ───────────────────────────────── */
[data-theme="dark"] {
    color-scheme: dark;
    --bg:           #0f1117;
    --bg-card:      #1a1d25;
    --bg-sidebar:   #181b23;
    --bg-sidebar-2: #232634;
    --bg-input:     #22262f;

    --text:         #f0f2f5;
    --text-muted:   #8b92a0;
    --text-light:   #5a6070;

    --sidebar-text:        #f0f2f5;
    --sidebar-text-muted:  #8b92a0;
    --sidebar-border:      rgba(15,23,42,0.08);
    --sidebar-hover:       rgba(37,99,235,0.08);
    --sidebar-active-bg:   linear-gradient(135deg, rgba(37,99,235,0.16) 0%, rgba(59,130,246,0.10) 100%);
    --sidebar-active-text: #1d4ed8;
    --sidebar-card:        rgba(30,33,44,0.92);

    --border:        #2a2f3a;
    --border-strong: #363c4a;

    --heka-blue-lt:  #1a3a52;
    --success-lt:    #0f2a1a;
    --warning-lt:    #2a1f0a;
    --danger-lt:     #2a0f0f;
    --info-lt:       #0a1f2a;
    --purple-lt:     #1e1030;

    --heka-ink:      #0a0c10;
}

/* ── Reset & Base ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 15px; }

body {
    font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    transition: background 0.3s, color 0.3s;
}

/* ══════════════════════════════════════════════════════════════
   LAYOUT
══════════════════════════════════════════════════════════════ */
.wrapper { display: flex; min-height: 100vh; }

/* ══════════════════════════════════════════════════════════════
   SIDEBAR
══════════════════════════════════════════════════════════════ */
.sidebar {
    width: var(--sidebar-w);
    background:
        radial-gradient(circle at top left, rgba(37,99,235,0.10) 0%, rgba(37,99,235,0) 38%),
        linear-gradient(180deg, var(--bg-sidebar) 0%, var(--bg-sidebar-2) 100%);
    color: var(--sidebar-text);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
    border-right: 1px solid var(--sidebar-border);
    box-shadow: inset -1px 0 0 rgba(255,255,255,0.65), 10px 0 30px rgba(15,23,42,0.06);
    backdrop-filter: blur(12px);
    isolation: isolate;
}

.sidebar::before {
    content: '';
    position: absolute;
    inset: 0 0 auto 0;
    height: 140px;
    background: linear-gradient(180deg, rgba(37,99,235,0.10) 0%, rgba(37,99,235,0) 100%);
    pointer-events: none;
    z-index: 0;
}

.sidebar > * {
    position: relative;
    z-index: 1;
}

.sidebar-logo {
    padding: 18px 16px 14px;
    border-bottom: 1px solid var(--sidebar-border);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.92) 0%, rgba(248,250,252,0.96) 100%);
}

.sidebar-logo img {
    height: 44px;
    width: auto;
    object-fit: contain;
    filter: none;
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(15,23,42,0.08);
    border-radius: 16px;
    padding: 8px 12px;
    box-shadow: 0 10px 22px rgba(15,23,42,0.07);
}

.sidebar nav {
    flex: 1;
    overflow-y: auto;
    padding: 14px 8px 18px;
    min-height: 0;
    overscroll-behavior: contain;
}

.sidebar nav::-webkit-scrollbar { width: 4px; }
.sidebar nav::-webkit-scrollbar-track { background: transparent; }
.sidebar nav::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, rgba(148,163,184,0.55) 0%, rgba(148,163,184,0.2) 100%);
    border-radius: 999px;
}

.menu-label {
    display: block;
    padding: 18px 10px 8px;
    font-size: 0.63rem;
    text-transform: uppercase;
    letter-spacing: 2.2px;
    color: var(--sidebar-text-muted);
    font-weight: 800;
    opacity: 0.85;
}

.sidebar a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    color: var(--sidebar-text-muted);
    text-decoration: none;
    font-size: 0.86rem;
    font-weight: 600;
    transition: var(--transition);
    border: 1px solid transparent;
    margin: 3px 0;
    border-radius: 14px;
    position: relative;
    background: var(--sidebar-card);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
}

.sidebar a:hover {
    background: var(--sidebar-hover);
    color: var(--sidebar-text);
    border-color: rgba(37,99,235,0.16);
    transform: translateX(3px);
    box-shadow: 0 8px 18px rgba(15,23,42,0.06);
}

.sidebar a.active {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-active-text);
    font-weight: 700;
    border-color: rgba(37,99,235,0.18);
    box-shadow: inset 0 0 0 1px rgba(191,219,254,0.35), 0 10px 20px rgba(37,99,235,0.08);
}

.sidebar a.active::after {
    content: '';
    position: absolute;
    right: 12px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #60a5fa;
    box-shadow: 0 0 0 4px rgba(96,165,250,0.14);
}

.menu-link-split {
    justify-content: space-between;
}

.menu-counter {
    display: none;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: 999px;
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: #fff;
    font-size: 0.68rem;
    font-weight: 800;
    line-height: 1;
    box-shadow: 0 6px 18px rgba(220,38,38,0.22);
}

.menu-counter.is-mobile {
    min-width: 16px;
    width: 16px;
    height: 16px;
    padding: 0;
    font-size: 0.58rem;
}

.sidebar-footer {
    flex-shrink: 0;
    border-top: 1px solid var(--sidebar-border);
    padding: 12px 0 10px;
    background: linear-gradient(180deg, rgba(255,255,255,0.62) 0%, rgba(248,250,252,0.96) 100%);
    backdrop-filter: blur(12px);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 14px 10px;
    padding: 12px 14px;
    font-size: 0.8rem;
    color: var(--sidebar-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 700;
    border-radius: 14px;
    background: var(--sidebar-card);
    border: 1px solid var(--sidebar-border);
    box-shadow: 0 8px 16px rgba(15,23,42,0.05);
}

.sidebar-user::before {
    content: '👤';
    flex-shrink: 0;
    font-size: 0.95rem;
}

.sidebar-footer-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin: 0 14px 10px;
    padding: 0;
}

.sidebar-footer-label {
    font-size: 0.74rem;
    color: var(--sidebar-text-muted);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #fff;
    border: 1px solid var(--sidebar-border);
    border-radius: 999px;
    padding: 7px 12px;
    cursor: pointer;
    color: var(--sidebar-text);
    font-size: 0.78rem;
    font-family: inherit;
    transition: var(--transition);
    white-space: nowrap;
    box-shadow: 0 8px 18px rgba(15,23,42,0.06);
}

.theme-toggle:hover {
    background: var(--sidebar-hover);
    border-color: rgba(37,99,235,0.18);
    color: var(--sidebar-active-text);
    transform: translateY(-1px);
}

.theme-toggle:focus-visible {
    outline: 2px solid rgba(96,165,250,0.8);
    outline-offset: 2px;
}

.btn-logout {
    display: block;
    width: calc(100% - 28px);
    margin: 0 14px 8px;
    padding: 10px 14px;
    background: linear-gradient(135deg, rgba(239,68,68,0.08) 0%, rgba(220,38,38,0.04) 100%);
    color: #b91c1c;
    border: 1px solid rgba(239,68,68,0.14);
    border-radius: 12px;
    cursor: pointer;
    font-size: 0.82rem;
    text-align: center;
    transition: var(--transition);
    font-family: inherit;
    font-weight: 700;
    box-shadow: 0 8px 18px rgba(127,29,29,0.06);
}

.btn-logout:hover {
    background: linear-gradient(135deg, rgba(239,68,68,0.16) 0%, rgba(220,38,38,0.08) 100%);
    color: #991b1b;
    border-color: rgba(239,68,68,0.24);
    transform: translateY(-1px);
}

.topbar-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--sidebar-text);
    text-decoration: none;
    position: relative;
    min-width: 38px;
    min-height: 38px;
    padding: 6px 8px;
    font-size: 1.15rem;
    flex-shrink: 0;
    border-radius: 12px;
    background: #fff;
    border: 1px solid var(--border);
    transition: var(--transition);
    box-shadow: 0 8px 18px rgba(15,23,42,0.08);
}

.topbar-action:hover {
    background: var(--bg-input);
    transform: translateY(-1px);
}

.btn-install-pwa {
    display: block;
    width: calc(100% - 28px);
    margin: 6px 14px 10px;
    padding: 10px 12px;
    background: linear-gradient(135deg, rgba(37,99,235,0.10) 0%, rgba(59,130,246,0.06) 100%);
    color: #1d4ed8;
    border: 1px solid rgba(37,99,235,0.14);
    border-radius: 12px;
    font-size: 0.8rem;
    font-family: inherit;
    text-align: center;
    cursor: pointer;
    line-height: 1.4;
    transition: var(--transition);
    box-shadow: 0 10px 22px rgba(37,99,235,0.08);
}

.btn-install-pwa:hover {
    background: linear-gradient(135deg, rgba(37,99,235,0.16) 0%, rgba(59,130,246,0.10) 100%);
    color: #1e40af;
    border-color: rgba(37,99,235,0.24);
    transform: translateY(-1px);
}

/* ══════════════════════════════════════════════════════════════
   MAIN
══════════════════════════════════════════════════════════════ */
.main {
    flex: 1;
    min-width: 0;
    padding: 32px 36px;
    background: var(--bg);
    transition: background 0.3s;
}

/* ══════════════════════════════════════════════════════════════
   PAGE HEADER
══════════════════════════════════════════════════════════════ */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--border);
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.8px;
    line-height: 1.3;
}

/* ══════════════════════════════════════════════════════════════
   CARDS
══════════════════════════════════════════════════════════════ */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    margin-bottom: 24px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.card-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
    letter-spacing: -0.1px;
}

/* ══════════════════════════════════════════════════════════════
   STATS CARDS
══════════════════════════════════════════════════════════════ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}

.stat-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(255,255,255,0.8) 100%);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08), 0 1px 4px rgba(0,0,0,0.04);
    border: 1.5px solid var(--border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    transition: all 0.6s ease;
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(37,99,235,0.2), 0 4px 12px rgba(0,0,0,0.08);
    border-color: rgba(37,99,235,0.4);
}

.stat-card:hover::before {
    top: -30%;
    right: -30%;
    background: radial-gradient(circle, rgba(37,99,235,0.25) 0%, transparent 60%);
}

.stat-card-value {
    font-size: 2.8rem;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 10px;
    font-family: 'DM Mono', monospace;
    letter-spacing: -2px;
    background: linear-gradient(135deg, var(--heka-blue) 0%, #3b82f6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-card-sub {
    font-size: 0.75rem;
    margin-top: 8px;
    font-weight: 600;
    color: var(--text-light);
    font-family: 'DM Mono', monospace;
}

/* ══════════════════════════════════════════════════════════════
   TABLAS
══════════════════════════════════════════════════════════════ */
.tabla-wrapper {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.tabla-wrapper:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.tabla-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
    flex-wrap: wrap;
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(37,99,235,0.02) 100%);
}

.tabla-search { position: relative; flex: 1; min-width: 200px; max-width: 350px; }

.tabla-search input {
    width: 100%;
    padding: 9px 14px 9px 38px;
    border: 1.5px solid var(--border);
    border-radius: 22px;
    font-size: 0.84rem;
    background: var(--bg-input);
    color: var(--text);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
}

.tabla-search input:focus {
    border-color: var(--heka-blue);
    background: var(--bg-card);
    box-shadow: 0 0 0 4px rgba(37,99,235,0.1), 0 4px 12px rgba(37,99,235,0.12);
    outline: none;
}

.tabla-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.85rem;
    pointer-events: none;
}

.tabla-info { font-size: 0.8rem; color: var(--text-muted); white-space: nowrap; }
.tabla-info strong { color: var(--text); }
.tabla-scroll { overflow-x: auto; }

table, .tabla-avanzada {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

thead tr { background: var(--heka-ink); color: #fff; }
[data-theme="dark"] thead tr { background: #0a0c10; }

th {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    white-space: nowrap;
    color: rgba(255,255,255,0.85);
}

td {
    padding: 13px 16px;
    color: var(--text);
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
    transition: background 0.1s;
}

tbody tr:last-child td { border-bottom: none; }

tbody tr:hover td { 
    background: linear-gradient(136deg, rgba(37,99,235,0.05) 0%, rgba(37,99,235,0.02) 100%);
}

[data-theme="dark"] tbody tr:hover td { background: rgba(37,141,214,0.08); }

tfoot tr { background: var(--bg); }
tfoot td { padding: 12px 16px; border-top: 2px solid var(--border); font-weight: 700; color: var(--text); }

/* Pagination */
.page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    background: var(--bg-card);
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0 8px;
    font-family: inherit;
}

.page-btn:hover { 
    border-color: var(--heka-blue); 
    color: var(--heka-blue); 
    background: linear-gradient(135deg, rgba(37,99,235,0.05) 0%, rgba(37,99,235,0.02) 100%);
    transform: translateY(-2px);
}

.page-btn.active { 
    background: linear-gradient(135deg, var(--heka-blue) 0%, #3b82f6 100%);
    border-color: var(--heka-blue); 
    color: #fff;
    box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}

/* ══════════════════════════════════════════════════════════════
   BOTONES
══════════════════════════════════════════════════════════════ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 22px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.9rem;
    text-decoration: none;
    font-weight: 600;
    font-family: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    line-height: 1;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.4s ease;
    pointer-events: none;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:hover  { transform: translateY(-2px); }
.btn:active { transform: translateY(0); opacity: 0.95; }

.btn-primary   { background: linear-gradient(135deg, var(--heka-blue) 0%, #3b82f6 100%); color: #fff; box-shadow: 0 6px 20px rgba(37,99,235,0.35); }
.btn-primary:hover { background: linear-gradient(135deg, var(--heka-blue-dk) 0%, #1d4ed8 100%); box-shadow: 0 8px 28px rgba(37,99,235,0.45); }

.btn-success   { background: linear-gradient(135deg, var(--success) 0%, #059669 100%); color: #fff; box-shadow: 0 6px 20px rgba(16,185,129,0.35); }
.btn-success:hover { background: linear-gradient(135deg, #059669 0%, #047857 100%); box-shadow: 0 8px 28px rgba(16,185,129,0.45); }

.btn-warning   { background: linear-gradient(135deg, var(--warning) 0%, #d97706 100%); color: #fff; box-shadow: 0 6px 20px rgba(245,158,11,0.35); }
.btn-warning:hover { background: linear-gradient(135deg, #d97706 0%, #b45309 100%); box-shadow: 0 8px 28px rgba(245,158,11,0.45); }

.btn-danger    { background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%); color: #fff; box-shadow: 0 6px 20px rgba(239,68,68,0.35); }
.btn-danger:hover { background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%); box-shadow: 0 8px 28px rgba(239,68,68,0.45); }

.btn-secondary { background: var(--bg-input); color: var(--text); border: 1.5px solid var(--border); }
.btn-secondary:hover { background: rgba(37,99,235,0.08); border-color: rgba(37,99,235,0.3); opacity: 1; }

.btn-dark      { background: var(--heka-black); color: #fff; box-shadow: 0 4px 12px rgba(15,23,42,0.3); }
.btn-dark:hover { background: #1e293b; }

.btn-sm        { padding: 8px 14px; font-size: 0.82rem; border-radius: var(--radius-xs); }
.btn-lg        { padding: 14px 32px; font-size: 1rem; border-radius: var(--radius); }

.actions { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }

/* ══════════════════════════════════════════════════════════════
   FORMULARIOS
══════════════════════════════════════════════════════════════ */
.form-group { margin-bottom: 22px; }
.form-row   { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--text);
    letter-spacing: 0.1px;
}

label small { font-weight: 400; color: var(--text-muted); }

input[type=text], input[type=email], input[type=password],
input[type=number], input[type=date], select, textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    background: var(--bg-input);
    color: var(--text);
    font-family: inherit;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    appearance: none;
}

input[type=text]:focus, input[type=email]:focus, input[type=password]:focus,
input[type=number]:focus, input[type=date]:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--heka-blue);
    background: var(--bg-card);
    box-shadow: 0 0 0 4px rgba(37,99,235,0.1), 0 4px 12px rgba(37,99,235,0.15);
}

input[type=text]:hover, input[type=email]:hover, input[type=password]:hover,
input[type=number]:hover, input[type=date]:hover, select:hover, textarea:hover {
    border-color: rgba(37,99,235,0.4);
    background: var(--bg-input);
}

input[type=file] {
    width: 100%;
    padding: 10px 14px;
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    background: var(--bg-input);
    color: var(--text-muted);
    font-family: inherit;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

input[type=file]:hover { 
    border-color: var(--heka-blue); 
    background: linear-gradient(135deg, rgba(37,99,235,0.05), rgba(37,99,235,0.02));
}

select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235a6070' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 14px 14px;
    padding-right: 36px;
}

[data-theme="dark"] select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238b92a0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
}

input:disabled, input[readonly] {
    background: var(--border);
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.6;
}

textarea { resize: vertical; min-height: 80px; }
.form-error { color: var(--danger); font-size: 0.78rem; margin-top: 5px; display: block; }
.form-hint  { color: var(--text-muted); font-size: 0.78rem; margin-top: 5px; display: block; }

.password-field {
    position: relative;
}

.password-field input {
    padding-right: 46px !important;
}

.password-toggle {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #64748b;
    transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.password-toggle:hover {
    background: rgba(37,99,235,0.08);
    color: var(--heka-blue);
}

.password-toggle svg {
    width: 20px;
    height: 20px;
    overflow: visible;
}

.password-toggle .eye-outline,
.password-toggle .eye-pupil,
.password-toggle .eye-slash {
    transition: transform 0.22s ease, opacity 0.22s ease, stroke 0.22s ease;
    transform-origin: center;
}

.password-toggle .eye-outline,
.password-toggle .eye-pupil {
    opacity: 1;
}

.password-toggle .eye-slash {
    opacity: 0;
    transform: scale(0.6) rotate(-12deg);
}

.password-toggle.is-visible .eye-outline,
.password-toggle.is-visible .eye-pupil {
    opacity: 0.38;
    transform: scale(0.92);
}

.password-toggle.is-visible .eye-slash {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

/* Upload area */
.upload-area {
    position: relative;
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
    cursor: pointer;
    background: var(--bg-input);
    transition: var(--transition);
}

.upload-area:hover { border-color: var(--heka-blue); background: var(--heka-blue-lt); }

.upload-area input[type="file"] {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    border: none;
    padding: 0;
    background: none;
}

.upload-icon { font-size: 2.2rem; margin-bottom: 8px; }
.upload-text { font-size: 0.88rem; color: var(--text-muted); }
.upload-text span { color: var(--heka-blue); font-weight: 600; }
.upload-hint { font-size: 0.76rem; color: var(--text-light); margin-top: 4px; }

.upload-preview {
    display: none;
    align-items: center;
    gap: 14px;
    padding: 14px;
    background: var(--heka-blue-lt);
    border: 1.5px solid rgba(37,141,214,0.25);
    border-radius: var(--radius);
    margin-top: 10px;
}

.upload-preview.show { display: flex; }
.upload-preview img { width: 72px; height: 72px; object-fit: cover; border-radius: var(--radius-sm); flex-shrink: 0; }
.upload-preview-info { flex: 1; min-width: 0; }
.upload-preview-name { font-weight: 700; font-size: 0.875rem; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.upload-preview-size { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }
.upload-preview-remove { background: none; border: none; color: var(--danger); cursor: pointer; font-size: 1.1rem; padding: 4px 8px; border-radius: 50%; flex-shrink: 0; transition: var(--transition); }
.upload-preview-remove:hover { background: var(--danger-lt); }

/* ══════════════════════════════════════════════════════════════
   ALERTAS & BADGES
══════════════════════════════════════════════════════════════ */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 13px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 0.875rem;
    font-weight: 500;
    border-left: 4px solid;
}

.alert-success { background: var(--success-lt); color: #14532d; border-color: var(--success); }
.alert-error   { background: var(--danger-lt);  color: #7f1d1d; border-color: var(--danger); }
.alert-warning { background: var(--warning-lt); color: #92400e; border-color: var(--warning); }

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.73rem;
    font-weight: 700;
    white-space: nowrap;
    border: 1.5px solid;
    transition: all 0.2s ease;
}

.badge-active   { background: var(--success-lt); color: var(--success); border-color: rgba(16,185,129,0.3); }
.badge-inactive { background: var(--danger-lt);  color: var(--danger); border-color: rgba(239,68,68,0.3); }
.badge-blue     { background: var(--heka-blue-lt); color: var(--heka-blue); border-color: rgba(37,99,235,0.3); }
.badge-warning  { background: var(--warning-lt); color: var(--warning); border-color: rgba(245,158,11,0.3); }

.badge:hover {
    transform: scale(1.05);
}

/* ══════════════════════════════════════════════════════════════
   LOGIN
══════════════════════════════════════════════════════════════ */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--heka-ink);
    position: relative;
    overflow: hidden;
}

.login-wrapper::before {
    content: '';
    position: absolute;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(37,141,214,0.15) 0%, transparent 65%);
    top: -150px; right: -100px;
    pointer-events: none;
}

.login-wrapper::after {
    content: '';
    position: absolute;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(37,141,214,0.08) 0%, transparent 65%);
    bottom: -80px; left: -80px;
    pointer-events: none;
}

.login-card {
    background: #fff;
    padding: 44px 40px;
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(255,255,255,0.05);
    position: relative;
    z-index: 1;
}

.login-logo {
    display: block;
    margin: 0 auto 28px;
    height: 64px;
    max-width: 180px;
    width: auto;
    object-fit: contain;
}

.login-card h1 { font-size: 1.25rem; font-weight: 800; text-align: center; color: var(--text); margin-bottom: 4px; letter-spacing: -0.3px; }
.login-card > p { color: var(--text-muted); font-size: 0.84rem; text-align: center; margin-bottom: 28px; }

/* ══════════════════════════════════════════════════════════════
   REPORTES
══════════════════════════════════════════════════════════════ */
.reporte-intro {
    background: var(--heka-ink);
    color: #fff;
    border-radius: var(--radius);
    padding: 22px 24px;
    margin-bottom: 24px;
    display: flex;
    align-items: flex-start;
    gap: 18px;
    border-left: 4px solid var(--heka-blue);
    box-shadow: var(--shadow);
}

[data-theme="dark"] .reporte-intro { background: #0a0c10; border-color: var(--heka-blue); }

.reporte-intro .icono { font-size: 2rem; flex-shrink: 0; margin-top: 2px; }
.reporte-intro h2    { font-size: 0.95rem; font-weight: 700; margin-bottom: 5px; color: var(--heka-blue); }
.reporte-intro p     { font-size: 0.83rem; color: rgba(255,255,255,0.65); line-height: 1.6; margin: 0; }
.chart-container     { position: relative; height: 280px; }

/* ══════════════════════════════════════════════════════════════
   CATÁLOGO
══════════════════════════════════════════════════════════════ */
.catalogo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 24px;
    margin-bottom: 24px;
}

.producto-card {
    background: #fff;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    border: 1px solid #e5e7eb;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.producto-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(37,99,235,0.15);
}

.producto-card-img {
    height: 180px;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.producto-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.producto-card:hover .producto-card-img img {
    transform: scale(1.08);
}

.producto-card-img .placeholder-icon {
    font-size: 4rem;
    opacity: 0.5;
}

.producto-card-body {
    padding: 20px;
}

.producto-categoria {
    display: inline-block;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1d4ed8;
    padding: 5px 12px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.producto-nombre {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.4rem;
}

.producto-precio {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin-bottom: 14px;
}

.precio-simbolo {
    font-size: 0.85rem;
    color: #64748b;
    font-weight: 600;
}

.precio-valor {
    font-size: 1.5rem;
    font-weight: 800;
    color: #1d4ed8;
    font-family: 'DM Mono', monospace;
}

.producto-stock {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    margin-bottom: 14px;
    padding: 10px;
    background: #f8fafc;
    border-radius: 8px;
    border-left: 3px solid #1d4ed8;
}

.stock-label {
    color: #64748b;
    font-weight: 600;
}

.stock-cantidad {
    font-weight: 700;
}

.stock-cantidad.disponible {
    color: #10b981;
}

.stock-cantidad.bajo {
    color: #f59e0b;
}

.stock-bar {
    width: 100%;
    height: 5px;
    background: #e5e7eb;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 16px;
}

.stock-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.stock-fill.success {
    background: linear-gradient(90deg, #10b981 0%, #06b6d4 100%);
}

.stock-fill.warning {
    background: linear-gradient(90deg, #f59e0b 0%, #f97316 100%);
}

.producto-btn {
    display: block;
    width: 100%;
    text-align: center;
    padding: 12px 16px;
    background: linear-gradient(135deg, #1d4ed8 0%, #3b82f6 100%);
    color: #fff;
    border: none;
    border-radius: 10px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
}

.producto-btn:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1d4ed8 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(29,78,216,0.4);
}

.producto-btn-disabled {
    display: block;
    width: 100%;
    text-align: center;
    padding: 12px 16px;
    background: #e5e7eb;
    color: #9ca3af;
    border: none;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: not-allowed;
    font-family: inherit;
}

.cat-filtros {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
    padding: 0;
}

.cat-filtro-btn {
    padding: 10px 16px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    background: #f3f4f6;
    color: #64748b;
    text-decoration: none;
    border: 1px solid #e5e7eb;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.3s ease;
}

.cat-filtro-btn:hover {
    background: #dbeafe;
    color: #1d4ed8;
    border-color: #1d4ed8;
    transform: translateY(-2px);
}

.cat-filtro-btn.active {
    background: linear-gradient(135deg, #1d4ed8 0%, #3b82f6 100%);
    color: #fff;
    border-color: #1d4ed8;
    box-shadow: 0 4px 12px rgba(29,78,216,0.35);
}

.empty-state {
    text-align: center;
    padding: 60px 32px;
    background: #f8fafc;
    border-radius: 14px;
    border: 2px dashed #cbd5e1;
}

.empty-state .empty-icon {
    font-size: 4rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

/* ══════════════════════════════════════════════════════════════
   ESTADOS DE PEDIDO
══════════════════════════════════════════════════════════════ */
.estado-pendiente  { background: var(--warning-lt); color: var(--warning); }
.estado-aprobado   { background: var(--info-lt);    color: var(--info); }
.estado-despachado { background: var(--success-lt); color: var(--success); }
.estado-rechazado  { background: var(--danger-lt);  color: var(--danger); }

/* ══════════════════════════════════════════════════════════════
   CHAT
══════════════════════════════════════════════════════════════ */
#chat-mensajes::-webkit-scrollbar { width: 4px; }
#chat-mensajes::-webkit-scrollbar-track { background: transparent; }
#chat-mensajes::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 4px; }
#chat-mensajes::-webkit-scrollbar-thumb:hover { background: var(--heka-blue); }

/* ══════════════════════════════════════════════════════════════
   BOTONES DE FILTRO DE CATEGORÍA
══════════════════════════════════════════════════════════════ */
.cat-filtro-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-input);
    color: var(--text);
    border: 1.5px solid var(--border);
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: inherit;
    transition: var(--transition);
    white-space: nowrap;
}

.cat-filtro-btn:hover {
    background: var(--border);
    border-color: var(--border-strong);
    transform: translateY(-1px);
}

.cat-filtro-btn.active {
    background: linear-gradient(135deg, var(--heka-blue) 0%, #3b82f6 100%);
    color: #fff;
    border-color: var(--heka-blue);
    box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}

.cat-filtro-btn.active:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37,99,235,0.4);
}

/* ══════════════════════════════════════════════════════════════
   BADGES
══════════════════════════════════════════════════════════════ */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    white-space: nowrap;
}

.badge-active { background: var(--success-lt); color: var(--success); }
.badge-inactive { background: #f3f4f6; color: var(--text-muted); }
.badge-warning { background: var(--warning-lt); color: var(--warning); }
.badge-danger { background: var(--danger-lt); color: var(--danger); }
.badge-info { background: var(--info-lt); color: var(--info); }
.badge-primary { background: var(--heka-blue-lt); color: var(--heka-blue); }



.error-card {
    background: var(--bg-card);
    padding: 48px 40px;
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 420px;
    text-align: center;
    box-shadow: var(--shadow-xl);
}

/* ══════════════════════════════════════════════════════════════
   GLOBAL SEARCH
══════════════════════════════════════════════════════════════ */
.global-search-wrapper {
    position: relative;
    flex: 1;
    max-width: 340px;
}

.global-search-input {
    width: 100%;
    padding: 8px 14px 8px 38px;
    border: 1.5px solid var(--border);
    border-radius: 20px;
    font-size: 0.85rem;
    background: var(--bg-input);
    color: var(--text);
    font-family: inherit;
    transition: var(--transition);
}

.global-search-input:focus {
    outline: none;
    border-color: var(--heka-blue);
    box-shadow: 0 0 0 3px rgba(37,141,214,0.12);
    background: var(--bg-card);
}

.global-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

.global-search-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    max-height: 400px;
    overflow-y: auto;
    display: none;
}

.global-search-results.show { display: block; }

.search-result-section { padding: 8px 0; }
.search-result-label {
    padding: 6px 14px 3px;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    font-weight: 700;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 14px;
    cursor: pointer;
    transition: background 0.1s;
    text-decoration: none;
    color: var(--text);
    font-size: 0.875rem;
}

.search-result-item:hover { background: var(--heka-blue-lt); }
.search-result-item .icon { font-size: 1rem; flex-shrink: 0; }
.search-result-item .title { font-weight: 600; }
.search-result-item .sub { font-size: 0.75rem; color: var(--text-muted); }

/* ══════════════════════════════════════════════════════════════
   DARK MODE TOGGLE
══════════════════════════════════════════════════════════════ */
.dark-toggle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.7);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: var(--transition);
    flex-shrink: 0;
}

.dark-toggle:hover { background: rgba(255,255,255,0.15); color: #fff; }

/* ══════════════════════════════════════════════════════════════
   UTILITIES
══════════════════════════════════════════════════════════════ */
.text-muted   { color: var(--text-muted) !important; }
.text-primary { color: var(--heka-blue) !important; }
.text-success { color: var(--success) !important; }
.text-danger  { color: var(--danger) !important; }
.text-center  { text-align: center !important; }
.fw-bold      { font-weight: 700 !important; }
.mono         { font-family: 'DM Mono', monospace !important; }

.empty-state { text-align: center; padding: 56px 24px; color: var(--text-muted); }
.empty-state .empty-icon { font-size: 3.5rem; margin-bottom: 16px; opacity: 0.5; }
.empty-state p { font-size: 0.9rem; color: var(--text-muted); margin-top: 6px; }

/* ══════════════════════════════════════════════════════════════
   MOBILE TOPBAR
══════════════════════════════════════════════════════════════ */
.mobile-topbar   { display: none; }
.sidebar-overlay { display: none; }

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════════ */
@media (min-width: 769px) {
    body { overflow: auto !important; }

    .wrapper {
        display: flex !important;
        align-items: stretch;
    }

    .sidebar {
        display: flex !important;
        flex-direction: column !important;
        position: sticky !important;
        top: 0 !important;
        left: 0 !important;
        width: var(--sidebar-w) !important;
        height: 100vh !important;
        transform: none !important;
        visibility: visible !important;
        opacity: 1 !important;
        z-index: 100 !important;
    }

    .main {
        flex: 1 1 auto;
        min-width: 0;
    }

    .mobile-topbar,
    .sidebar-overlay {
        display: none !important;
    }
}

@media (max-width: 768px) {
    .wrapper { display: block; }

    .mobile-topbar {
        display: flex !important;
        align-items: center;
        justify-content: space-between;
        padding: 12px 16px;
        background: rgba(255,255,255,0.96);
        color: var(--sidebar-text);
        position: sticky;
        top: 0;
        z-index: 1100;
        box-shadow: 0 8px 24px rgba(15,23,42,0.08);
        border-bottom: 1px solid var(--border);
        backdrop-filter: blur(14px);
        width: 100%;
        gap: 10px;
    }

    .mobile-topbar img {
        height: 32px;
        width: auto;
        filter: none;
        object-fit: contain;
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 12px;
        padding: 4px 10px;
        box-shadow: 0 6px 16px rgba(15,23,42,0.06);
    }

    .btn-menu {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 12px;
        color: var(--sidebar-text);
        font-size: 1.35rem;
        cursor: pointer;
        padding: 5px 9px;
        line-height: 1;
        -webkit-tap-highlight-color: transparent;
        display: flex;
        align-items: center;
        flex-shrink: 0;
        transition: var(--transition);
        box-shadow: 0 8px 18px rgba(15,23,42,0.08);
    }

    .btn-menu:hover {
        background: var(--bg-input);
        transform: translateY(-1px);
    }

    .sidebar {
        position: fixed !important;
        left: -320px;
        top: 0;
        width: min(84vw, 310px);
        height: 100vh;
        height: 100dvh;
        z-index: 1200;
        transition: left 0.3s cubic-bezier(0.4,0,0.2,1);
        box-shadow: 12px 0 34px rgba(15,23,42,0.18);
        display: flex !important;
        flex-direction: column !important;
        overflow: hidden;
        border-radius: 0 18px 18px 0;
    }

    .sidebar.open { left: 0 !important; box-shadow: 4px 0 32px rgba(0,0,0,0.5); }

    .sidebar nav { flex: 1 !important; overflow-y: auto !important; min-height: 0 !important; }
    .sidebar-footer { flex-shrink: 0 !important; }

    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.55);
        z-index: 1100;
        backdrop-filter: blur(2px);
    }

    .sidebar-overlay.show { display: block !important; }

    html, body {
        overflow-x: hidden;
    }

    .main {
        padding: 16px;
        min-height: calc(100vh - 56px);
        overflow-x: hidden;
    }

    .card,
    .tabla-wrapper,
    .chat-shell,
    .chat-side-panel,
    .chart-container {
        min-width: 0;
        max-width: 100%;
    }

    .chart-container {
        overflow: hidden;
    }

    canvas {
        max-width: 100% !important;
    }

    div[style*="display:grid"][style*="grid-template-columns"],
    div[style*="display: grid"][style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
        gap: 14px !important;
    }

    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-card-value { font-size: 1.5rem; }

    .page-header { flex-direction: column; align-items: flex-start; gap: 12px; }
    .page-header h1 { font-size: 1.2rem; }

    .card { padding: 16px; }
    .catalogo-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .producto-card-img { height: 120px; }
    .cat-filtros { gap: 6px; }
    .cat-filtro-btn { font-size: 0.78rem; padding: 5px 12px; }
    #chat-mensajes { height: 50vh; }
    .form-row { grid-template-columns: 1fr; }
    .reporte-intro { flex-direction: column; gap: 10px; padding: 16px; }
    .btn { padding: 10px 16px; min-height: 42px; }
    .btn-sm { padding: 8px 12px; min-height: 36px; }
    .actions { flex-wrap: wrap; gap: 6px; }
    .tabla-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    table { min-width: 560px; }
    th, td { padding: 10px 12px; font-size: 0.82rem; }
    .global-search-wrapper { max-width: 100%; }
}

@media (max-width: 420px) {
    .catalogo-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .mobile-topbar { padding: 10px 12px; }
    .login-card { margin: 12px; padding: 28px 20px; }
}

@media print {
    .sidebar, .mobile-topbar, .sidebar-overlay,
    .dark-toggle, .global-search-wrapper,
    .page-header .actions, .actions, .btn,
    .card form:not(.no-print), .tabla-toolbar,
    .chat-badge, .pedidos-badge { display: none !important; }
    .wrapper { display: block !important; }
    .main { padding: 0 !important; }
    body { font-size: 11px; background: #fff !important; color: #000 !important; }
    .stat-card, .card, .tabla-wrapper { box-shadow: none !important; border: 1px solid #ddd !important; }
    thead tr { background: #000 !important; -webkit-print-color-adjust: exact; }
    tbody tr { page-break-inside: avoid; }
}

/* ══════════════════════════════════════════════════════════════
   ANIMACIONES & TRANSICIONES
══════════════════════════════════════════════════════════════ */

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Loading skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--border) 0%, rgba(255,255,255,0.5) 50%, var(--border) 100%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
    border-radius: var(--radius-sm);
    height: 20px;
}

/* Loading spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(37,99,235,0.2);
    border-top-color: var(--heka-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Página entrante suave */
.page-container {
    animation: slideInUp 0.3s ease-out;
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Tarjeta con entrada suave */
.card.animate, .stat-card.animate {
    animation: bounceIn 0.5s ease-out;
}

/* Animaciones escalonadas para grids */
.stats-grid > .stat-card:nth-child(1) { animation-delay: 0.1s; }
.stats-grid > .stat-card:nth-child(2) { animation-delay: 0.2s; }
.stats-grid > .stat-card:nth-child(3) { animation-delay: 0.3s; }
.stats-grid > .stat-card:nth-child(4) { animation-delay: 0.4s; }
.stats-grid > .stat-card:nth-child(5) { animation-delay: 0.5s; }
.stats-grid > .stat-card:nth-child(6) { animation-delay: 0.6s; }

/* Animación para botones */
.btn.animate {
    animation: slideInUp 0.4s ease-out;
}

/* Mejor scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: 4px;
    transition: background 0.3s;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--heka-blue);
}

/* Mejor tipografía */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

p {
    line-height: 1.6;
}

/* Efecto focus más evidente */
*:focus-visible {
    outline: 2px solid var(--heka-blue);
    outline-offset: 2px;
}

/* Mejora de accesibilidad */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Placeholder mejorado */
::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

/* Selection mejorado */
::selection {
    background: linear-gradient(135deg, var(--heka-blue) 0%, #3b82f6 100%);
    color: #fff;
}

/* ══════════════════════════════════════════════════════════════
   CHAT STYLES
══════════════════════════════════════════════════════════════ */
.chat-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 16px;
    padding: 20px 24px;
    margin-bottom: 12px;
    text-decoration: none;
    border-left: 4px solid var(--heka-blue);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
    position: relative;
    overflow: hidden;
}

.chat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.4) 50%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.chat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}

.chat-card:hover::before {
    opacity: 1;
}

.chat-card.animate {
    animation: slideInUp 0.6s cubic-bezier(0.4,0,0.2,1) backwards;
}

.chat-avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    position: relative;
}

.chat-avatar::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    padding: 2px;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0.05) 100%);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    -webkit-mask-composite: xor;
}

.chat-content {
    flex: 1;
    min-width: 0;
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 6px;
    gap: 12px;
}

.chat-title {
    font-weight: 700;
    color: var(--text);
    font-size: 0.95rem;
    line-height: 1.3;
    flex: 1;
    min-width: 0;
}

.chat-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    flex-shrink: 0;
    font-weight: 500;
    background: var(--bg-input);
    padding: 2px 8px;
    border-radius: 8px;
}

.chat-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.status-badge {
    padding: 2px 8px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.unread-badge {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    color: #fff;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 800;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(239,68,68,0.3);
    animation: pulse 2s infinite;
}

.chat-arrow {
    color: var(--text-light);
    font-size: 1.2rem;
    font-weight: 300;
    flex-shrink: 0;
    transition: transform 0.2s;
}

.chat-card:hover .chat-arrow {
    transform: translateX(4px);
}

/* Responsive chat */
@media (max-width: 768px) {
    .chat-card {
        padding: 16px 18px;
        gap: 12px;
        margin-bottom: 8px;
    }

    .chat-avatar {
        width: 44px;
        height: 44px;
        font-size: 1.2rem;
    }

    .chat-title {
        font-size: 0.9rem;
    }

    .chat-meta {
        font-size: 0.75rem;
        gap: 6px;
    }

    .unread-badge {
        width: 24px;
        height: 24px;
        font-size: 0.7rem;
    }
} /* fin @media (max-width: 768px) — chat responsive */


/* --------------------------------------------------------------
   CATALOGO STYLES
-------------------------------------------------------------- */
.catalogo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 32px;
    padding: 0 8px;
}

.producto-card {
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 50%, #f1f5f9 100%);
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    border: 1px solid rgba(255,255,255,0.8);
    backdrop-filter: blur(10px);
}

.producto-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--heka-blue) 0%, #06b6d4 50%, var(--purple) 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.producto-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0,0,0,0.15), 0 8px 24px rgba(37,99,235,0.1);
}

.producto-card:hover::before {
    opacity: 1;
}

.producto-card.animate {
    animation: slideInUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) backwards;
}

/* ── Imagen y overlays ───────────────────────────── */
.producto-card-img {
    height: 180px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.producto-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.producto-card:hover .producto-card-img img {
    transform: scale(1.1) rotate(1deg);
    filter: brightness(1.1) contrast(1.05);
}

.img-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg,
        rgba(102, 126, 234, 0.1) 0%,
        rgba(118, 75, 162, 0.2) 50%,
        rgba(255, 255, 255, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.producto-card:hover .img-overlay {
    opacity: 1;
}

.producto-icon-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.producto-icon {
    font-size: 4rem;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
    animation: float 3s ease-in-out infinite;
}

.icon-glow {
    position: absolute;
    inset: -20px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
    animation: pulse 2s ease-in-out infinite;
}

/* ── Badges y tags ───────────────────────────── */
.stock-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 4px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.stock-badge.success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #fff;
}

.stock-badge.warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: #fff;
    animation: shake 2s ease-in-out infinite;
}

.stock-badge.danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: #fff;
}

.badge-icon {
    font-size: 0.8rem;
}

.categoria-tag {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(10px);
    color: #fff;
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.1);
}

/* ── Contenido de la tarjeta ───────────────────────────── */
.producto-card-body {
    padding: 24px;
    position: relative;
}

.producto-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    gap: 12px;
}

.producto-nombre {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.3;
    margin: 0;
    flex: 1;
    min-width: 0;
}

.producto-precio {
    display: flex;
    align-items: baseline;
    gap: 2px;
    flex-shrink: 0;
}

.precio-simbolo {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.precio-valor {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--heka-blue);
    font-family: 'DM Mono', monospace;
}

.producto-meta {
    margin-bottom: 20px;
}

.stock-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
}

.stock-label {
    color: var(--text-muted);
    font-weight: 500;
}

.stock-cantidad.disponible {
    color: var(--success);
    font-weight: 700;
}

.stock-cantidad.bajo {
    color: var(--warning);
    font-weight: 700;
}

/* ── Barra de progreso de stock ───────────────────────────── */
.stock-bar {
    width: 100%;
    height: 4px;
    background: rgba(0,0,0,0.1);
    border-radius: 2px;
    margin-bottom: 20px;
    overflow: hidden;
}

.stock-fill {
    height: 100%;
    border-radius: 2px;
    transition: all 0.3s ease;
    position: relative;
}

.stock-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.3) 50%, transparent 100%);
    animation: shimmer 2s infinite;
}

.stock-fill.success {
    background: linear-gradient(90deg, var(--success) 0%, #10b981 100%);
}

.stock-fill.warning {
    background: linear-gradient(90deg, var(--warning) 0%, #f59e0b 100%);
}

/* ── Botones ───────────────────────────── */
.producto-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    background: linear-gradient(135deg, var(--heka-blue) 0%, #3b82f6 50%, #6366f1 100%);
    color: #fff;
    padding: 14px 20px;
    border-radius: 16px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 6px 20px rgba(37,99,235,0.3);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.2);
}

.producto-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(37,99,235,0.4);
    background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 50%, #4f46e5 100%);
}

.btn-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.4) 50%, transparent 100%);
    transition: left 0.5s;
}

.producto-btn-primary:hover .btn-shine {
    left: 100%;
}

.producto-btn-disabled {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    background: linear-gradient(135deg, #9ca3af 0%, #6b7280 100%);
    color: #f9fafb;
    padding: 14px 20px;
    border-radius: 16px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: not-allowed;
    box-shadow: 0 4px 12px rgba(107,114,128,0.2);
    border: 1px solid rgba(255,255,255,0.1);
}

/* ── Estado vacío mejorado ───────────────────────────── */
.empty-state {
    text-align: center;
    padding: 80px 40px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 24px;
    border: 2px dashed rgba(148,163,184,0.3);
    position: relative;
    overflow: hidden;
}

.empty-state::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(37,99,235,0.05) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

.empty-icon-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 24px;
}

.empty-icon {
    font-size: 5rem;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
    animation: bounce 2s ease-in-out infinite;
}

.empty-glow {
    position: absolute;
    inset: -20px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37,99,235,0.1) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

.empty-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.empty-description {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
}

.empty-decoration {
    display: flex;
    justify-content: center;
    gap: 8px;
}

.decoration-circle {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--heka-blue);
    animation: fadeInOut 2s ease-in-out infinite;
}

.decoration-circle:nth-child(2) {
    animation-delay: 0.3s;
}

.decoration-circle:nth-child(3) {
    animation-delay: 0.6s;
}

/* ── Efectos decorativos ───────────────────────────── */
.card-decoration {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    pointer-events: none;
    overflow: hidden;
}

.decoration-line {
    position: absolute;
    bottom: 20px;
    left: 24px;
    right: 24px;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(37,99,235,0.2) 50%, transparent 100%);
}

.decoration-dots {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 4px;
}

.decoration-dots::before,
.decoration-dots::after {
    content: '';
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: rgba(37,99,235,0.3);
}

/* ── Animaciones personalizadas ───────────────────────────── */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-2px); }
    75% { transform: translateX(2px); }
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* ── Responsive ───────────────────────────── */
@media (max-width: 768px) {
    .catalogo-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 16px;
        margin-top: 20px;
    }

    .producto-card-img {
        height: 150px;
    }

    .producto-card-body {
        padding: 16px;
    }

    .producto-nombre {
        font-size: 1rem;
    }

    .precio-valor {
        font-size: 1.2rem;
    }

    .cat-filtro-btn {
        font-size: 0.8rem;
        padding: 8px 14px;
    }
}

@media (max-width: 480px) {
    .catalogo-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .producto-card-img {
        height: 140px;
    }

    .producto-card-body {
        padding: 14px;
    }
}

/* ──────────────────────────────────────────
   MEJORAS VISUALES ADICIONALES
────────────────────────────────────────── */

/* Mejora de filtros de categoría */
.cat-filtros {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 24px 0;
    padding: 16px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 16px;
    border: 1px solid rgba(203, 213, 225, 0.5);
}

.cat-filtro-btn {
    padding: 10px 16px;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    background: #fff;
    color: #64748b;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: 1px solid #e2e8f0;
    cursor: pointer;
}

.cat-filtro-btn:hover {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1d4ed8;
    border-color: #3b82f6;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37,99,235,0.2);
}

.cat-filtro-btn.active {
    background: linear-gradient(135deg, var(--heka-blue) 0%, #3b82f6 100%);
    color: #fff;
    border-color: var(--heka-blue);
    box-shadow: 0 6px 20px rgba(37,99,235,0.3);
}

/* Mejorar imagen de productos */
.producto-card-img img {
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) !important;
}

.producto-card:hover .producto-card-img img {
    transform: scale(1.12) !important;
    filter: brightness(1.08) !important;
}

.producto-placeholder {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #bae6fd 100%) !important;
}

/* Mejorar badge de stock con animaciones */
.stock-badge {
    z-index: 10;
    font-weight: 800;
    letter-spacing: 0.5px;
}

.stock-badge.warning {
    animation: pulse-warning 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse-warning {
    0%, 100% { 
        box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
    }
    50% { 
        box-shadow: 0 4px 20px rgba(245, 158, 11, 0.6);
    }
}

/* Mejorar nombre de producto */
.producto-nombre {
    line-height: 1.4;
    color: #1e293b;
    transition: all 0.3s ease;
    font-weight: 700;
}

.producto-card:hover .producto-nombre {
    color: var(--heka-blue);
}

/* Mejorar precio con efecto */
.producto-precio {
    position: relative;
    margin: 16px 0;
}

.precio-valor {
    position: relative;
    display: inline-block;
    color: var(--heka-blue);
    font-size: 1.6rem;
    transition: all 0.3s ease;
    font-weight: 800;
}

.producto-card:hover .precio-valor {
    font-size: 1.7rem;
}

/* Mejorar información de stock */
.stock-info {
    margin: 14px 0;
    padding: 10px;
    background: rgba(37,99,235,0.05);
    border-radius: 8px;
    border-left: 3px solid var(--heka-blue);
}

.stock-cantidad.disponible {
    color: #10b981;
    font-weight: 600;
}

.stock-cantidad.bajo {
    color: #f59e0b;
    font-weight: 600;
}

/* Mejorar barra de stock */
.stock-bar {
    margin: 16px 0;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.06);
}

.stock-fill.success {
    background: linear-gradient(90deg, #10b981 0%, #06b6d4 50%, #0ea5e9 100%) !important;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

.stock-fill.warning {
    background: linear-gradient(90deg, #f59e0b 0%, #ef4444 50%, #f97316 100%) !important;
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.3);
}

/* Mejorar botones */
.producto-btn,
.producto-btn-primary {
    font-size: 1rem;
    font-weight: 700;
    padding: 14px 20px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.producto-btn::before,
.producto-btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.2);
    transition: left 0.6s ease;
    z-index: 1;
}

.producto-btn:hover::before,
.producto-btn-primary:hover::before {
    left: 100%;
}

.btn-icon,
.btn-text {
    position: relative;
    z-index: 2;
}

.producto-btn {
    background: linear-gradient(135deg, var(--heka-blue) 0%, #3b82f6 50%, #6366f1 100%) !important;
    box-shadow: 0 6px 20px rgba(37,99,235,0.3) !important;
}

.producto-btn:hover {
    transform: translateY(-3px) !important;
    box-shadow: 0 12px 32px rgba(37,99,235,0.5) !important;
}

.producto-btn-disabled {
    background: linear-gradient(135deg, #cbd5e1 0%, #94a3b8 100%) !important;
    opacity: 0.7;
}

/* Mejorar categoría tag */
.producto-categoria {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 50%, #93c5fd 100%) !important;
    color: #1d4ed8 !important;
    font-weight: 700;
    padding: 6px 12px;
    border-radius: 12px;
    display: inline-block;
    margin-bottom: 12px;
    font-size: 0.8rem;
    transition: all 0.3s ease;
}


.producto-card:hover .producto-categoria {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(29, 78, 216, 0.2);
}

/* Agregar sombra sutil a tarjeta en hover */
.producto-card {
    position: relative;
}

.producto-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(37,99,235,0.1) 0%, transparent 50%, rgba(99,102,241,0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 20px;
    pointer-events: none;
}

.producto-card:hover::after {
    opacity: 1;
}

/* Mejora de empty state */
.empty-state {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 50%, #e2e8f0 100%) !important;
    border: 2px dashed #cbd5e1 !important;
    position: relative;
}

.empty-state .empty-icon {
    font-size: 5rem;
    animation: bounce-icon 2s cubic-bezier(0.36, 0, 0.66, 1) infinite;
    margin-bottom: 20px;
}

@keyframes bounce-icon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}
/* ══════════════════════════════════════════════════════════════
   DARK MODE OVERRIDES — Corrección de colores hardcodeados
══════════════════════════════════════════════════════════════ */

/* ── Sidebar ───────────────────────────────────────────────── */
[data-theme="dark"] .sidebar-logo {
    background: linear-gradient(180deg, rgba(26,29,37,0.98) 0%, rgba(24,27,35,1) 100%);
}

[data-theme="dark"] .sidebar-footer {
    background: linear-gradient(180deg, rgba(24,27,35,0.92) 0%, rgba(24,27,35,1) 100%);
}

[data-theme="dark"] .sidebar a {
    background: rgba(30,33,44,0.6);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}

[data-theme="dark"] .sidebar-user {
    background: rgba(30,33,44,0.8);
}

[data-theme="dark"] .theme-toggle {
    background: var(--bg-input);
    border-color: var(--border);
    color: var(--text);
}

[data-theme="dark"] .theme-toggle:hover {
    background: var(--bg-card);
}

/* ── Topbar & Mobile ────────────────────────────────────────── */
[data-theme="dark"] .topbar-action {
    background: var(--bg-input);
    border-color: var(--border);
    color: var(--text);
}

[data-theme="dark"] .mobile-topbar {
    background: rgba(24,27,35,0.97);
    border-bottom-color: var(--border);
}

[data-theme="dark"] .mobile-topbar img {
    border-color: var(--border);
    background: var(--bg-input);
    filter: brightness(0.9);
}

[data-theme="dark"] .btn-menu {
    background: var(--bg-input);
    border-color: var(--border);
    color: var(--text);
}

/* ── Badges ─────────────────────────────────────────────────── */
[data-theme="dark"] .badge-inactive {
    background: var(--bg-input);
    color: var(--text-muted);
}

/* ── Alert texts en dark ─────────────────────────────────────── */
[data-theme="dark"] .alert-success { color: #6ee7b7; }
[data-theme="dark"] .alert-error   { color: #fca5a5; }
[data-theme="dark"] .alert-warning { color: #fcd34d; }

/* ── Chat cards ─────────────────────────────────────────────── */
[data-theme="dark"] .chat-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-input) 100%);
}

[data-theme="dark"] .chat-date {
    background: var(--bg-input);
}

/* ── Catálogo: producto-card ─────────────────────────────────── */
[data-theme="dark"] .producto-card {
    background: linear-gradient(145deg, var(--bg-card) 0%, var(--bg-input) 100%);
    border-color: var(--border);
}

[data-theme="dark"] .producto-card:hover {
    box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 8px 24px rgba(37,99,235,0.15);
}

[data-theme="dark"] .producto-nombre {
    color: var(--text);
}

[data-theme="dark"] .producto-card:hover .producto-nombre {
    color: var(--heka-blue);
}

[data-theme="dark"] .precio-simbolo {
    color: var(--text-muted);
}

[data-theme="dark"] .precio-valor {
    color: #60a5fa;
}

[data-theme="dark"] .producto-card:hover .precio-valor {
    color: #93c5fd;
}

[data-theme="dark"] .producto-stock {
    background: var(--bg-input);
    border-left-color: var(--heka-blue);
}

[data-theme="dark"] .stock-label {
    color: var(--text-muted);
}

[data-theme="dark"] .stock-bar {
    background: rgba(255,255,255,0.08);
}

[data-theme="dark"] .producto-categoria {
    background: linear-gradient(135deg, #1a3a52 0%, #1e3a6e 100%) !important;
    color: #93c5fd !important;
}

[data-theme="dark"] .producto-card:hover .producto-categoria {
    box-shadow: 0 4px 12px rgba(29,78,216,0.3);
}

[data-theme="dark"] .producto-btn-disabled {
    background: linear-gradient(135deg, var(--bg-input) 0%, var(--border) 100%) !important;
    color: var(--text-muted);
}

/* ── Catálogo: filtros de categoría ─────────────────────────── */
[data-theme="dark"] .cat-filtros {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-input) 100%);
    border-color: var(--border);
}

[data-theme="dark"] .cat-filtro-btn {
    background: var(--bg-input);
    color: var(--text-muted);
    border-color: var(--border);
}

[data-theme="dark"] .cat-filtro-btn:hover {
    background: var(--bg-card);
    color: var(--text);
    border-color: var(--border-strong);
}

/* ── Empty states ───────────────────────────────────────────── */
[data-theme="dark"] .empty-state {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-input) 100%) !important;
    border-color: var(--border) !important;
}

/* ── Login card (queda blanco intencional sobre fondo oscuro) ── */
/* No se toca login-card, es intencional sobre fondo --heka-ink  */

/* ── Tabla tfoot ─────────────────────────────────────────────── */
[data-theme="dark"] tfoot tr {
    background: var(--bg-input);
}

/* ── Stat card gradient fix en dark ─────────────────────────── */
[data-theme="dark"] .stat-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(26,29,37,0.95) 100%);
}

/* ── Stock crítico en tabla (ya usa var, pero por si acaso) ─── */
[data-theme="dark"] tbody tr[style*="background:var(--danger-lt)"] td {
    background: var(--danger-lt);
}