/* ═══════════════════════════════════════════════════════════
   SOLARIS - Main CSS (iOS Dark Glassmorphism)
   ═══════════════════════════════════════════════════════════ */

/* ─── Variables ─── */
:root {
    --bg-primary: #000000;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --bg-input: rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.12);
    --border-accent: rgba(245, 158, 11, 0.3);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.4);
    --text-dim: rgba(255, 255, 255, 0.25);
    --accent: #f59e0b;
    --accent-hover: #fbbf24;
    --accent-dark: #d97706;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --purple: #a855f7;
    --pink: #ec4899;
    --blur: blur(20px);
    --radius-sm: 10px;
    --radius: 14px;
    --radius-lg: 18px;
    --radius-xl: 22px;
    --sidebar-width: 260px;
    --header-height: 64px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
}

/* ─── Reset ─── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
    background: var(--bg-primary);
    min-height: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(ellipse 800px 600px at 15% 10%, rgba(245, 158, 11, 0.1) 0%, transparent 70%),
        radial-gradient(ellipse 600px 500px at 85% 85%, rgba(234, 88, 12, 0.06) 0%, transparent 70%),
        radial-gradient(ellipse 500px 400px at 50% 50%, rgba(251, 191, 36, 0.03) 0%, transparent 70%);
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; height: auto; }

/* ─── Header ─── */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.toggle-sidebar {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}
.toggle-sidebar:hover { background: var(--bg-card); color: var(--text-primary); }

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--text-primary);
}
.logo i {
    background: linear-gradient(135deg, #f59e0b, #ea580c);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.4rem;
}

.header-center { flex: 1; max-width: 480px; margin: 0 24px; }

.search-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: var(--bg-input);
    backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
}
.search-bar:focus-within {
    border-color: var(--border-accent);
    background: var(--bg-card-hover);
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.08);
}
.search-bar i { color: var(--text-muted); font-size: 0.85rem; }
.search-bar input {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.85rem;
    outline: none;
}
.search-bar input::placeholder { color: var(--text-dim); }

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.caja-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #fca5a5;
}
.caja-status.abierta {
    background: rgba(34, 197, 94, 0.12);
    border-color: rgba(34, 197, 94, 0.2);
    color: #86efac;
}

.notification-btn, .user-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: var(--radius);
    transition: all 0.2s;
    font-family: var(--font);
    font-size: 0.85rem;
}
.notification-btn:hover, .user-btn:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.notification-btn { position: relative; }
.notification-btn .badge {
    position: absolute;
    top: 2px;
    right: 6px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: var(--danger);
    border-radius: 10px;
    font-size: 0.65rem;
    font-weight: 700;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
}

.notifications, .user-menu { position: relative; }

.notification-dropdown, .user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 300px;
    background: rgba(20, 20, 20, 0.95);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.25s ease;
    overflow: hidden;
    z-index: 200;
}
.notification-dropdown.show, .user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown { min-width: 220px; }
.user-dropdown .user-info { padding: 16px; }
.user-dropdown .user-name { font-weight: 600; font-size: 0.9rem; color: var(--text-primary); }
.user-dropdown .user-role { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }
.user-dropdown hr { border: none; border-top: 1px solid var(--border); margin: 0; }
.user-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    transition: all 0.2s;
}
.user-dropdown a:hover { background: var(--bg-card-hover); color: var(--text-primary); }
.user-dropdown .logout-btn { color: var(--danger); }
.user-dropdown .logout-btn:hover { background: rgba(239, 68, 68, 0.1); }

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: #000;
}

.notification-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
}
.notification-header h4 { font-size: 0.9rem; font-weight: 600; }
.notification-header .mark-all-read {
    background: none;
    border: none;
    color: var(--accent);
    font-size: 0.75rem;
    cursor: pointer;
    font-family: var(--font);
}
.notification-list { max-height: 300px; overflow-y: auto; }
.empty-notifications {
    padding: 30px;
    text-align: center;
    color: var(--text-muted);
}
.empty-notifications i { font-size: 1.5rem; margin-bottom: 8px; display: block; }
.empty-notifications p { font-size: 0.8rem; }

/* ─── Flash Messages ─── */
.flash-message {
    position: fixed;
    top: calc(var(--header-height) + 12px);
    left: 50%;
    transform: translateX(-50%);
    padding: 14px 24px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    font-weight: 500;
    z-index: 500;
    animation: flashIn 0.3s ease;
    backdrop-filter: var(--blur);
}
@keyframes flashIn {
    from { opacity: 0; transform: translateX(-50%) translateY(-10px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}
.flash-success { background: rgba(34, 197, 94, 0.15); border: 1px solid rgba(34, 197, 94, 0.25); color: #86efac; }
.flash-error { background: rgba(239, 68, 68, 0.15); border: 1px solid rgba(239, 68, 68, 0.25); color: #fca5a5; }
.flash-warning { background: rgba(245, 158, 11, 0.15); border: 1px solid rgba(245, 158, 11, 0.25); color: #fcd34d; }
.flash-info { background: rgba(59, 130, 246, 0.15); border: 1px solid rgba(59, 130, 246, 0.25); color: #93c5fd; }
.close-flash {
    background: none;
    border: none;
    color: inherit;
    opacity: 0.5;
    cursor: pointer;
    padding: 4px;
    margin-left: 8px;
    font-size: 0.8rem;
}
.close-flash:hover { opacity: 1; }

/* ─── Sidebar ─── */
.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 90;
    transition: transform 0.3s ease, width 0.3s ease;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 10px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-section {
    padding: 16px 14px 6px;
}
.nav-section h3 {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
    position: relative;
}
.nav-item:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}
.nav-item.active {
    background: rgba(245, 158, 11, 0.1);
    color: var(--accent);
    font-weight: 600;
}
.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 25%;
    bottom: 25%;
    width: 3px;
    background: var(--accent);
    border-radius: 0 3px 3px 0;
}
.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 0.95rem;
}
.nav-item .badge-new {
    margin-left: auto;
    padding: 2px 8px;
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 8px;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--accent);
}
.nav-item .badge-count, .nav-item .badge-alert {
    margin-left: auto;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    border-radius: 8px;
    font-size: 0.7rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}
.nav-item .badge-count { background: rgba(59, 130, 246, 0.15); color: var(--info); }
.nav-item .badge-alert { background: rgba(239, 68, 68, 0.15); color: var(--danger); }

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.sidebar-version, .sidebar-time {
    font-size: 0.7rem;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    gap: 6px;
}
.sidebar-version i { color: var(--accent); font-size: 0.75rem; }

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 89;
}

/* Sidebar collapsed */
.sidebar.collapsed { width: 70px; }
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .nav-section,
.sidebar.collapsed .nav-item .badge-new,
.sidebar.collapsed .nav-item .badge-count,
.sidebar.collapsed .nav-item .badge-alert,
.sidebar.collapsed .sidebar-footer { display: none; }
.sidebar.collapsed .nav-item { justify-content: center; padding: 12px; }
.sidebar.collapsed .nav-item i { width: auto; font-size: 1.1rem; }

/* ─── Main Content ─── */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: 24px;
    min-height: calc(100vh - var(--header-height));
    transition: margin-left 0.3s ease;
}
.sidebar.collapsed ~ .main-content,
.main-content.sidebar-collapsed { margin-left: 70px; }

/* ─── Cards ─── */
.card {
    background: var(--bg-card);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all 0.3s ease;
}
.card:hover { border-color: var(--border-hover); }
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.card-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}
.card-title i { color: var(--accent); }

/* ─── Page Header ─── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}
.page-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}
.page-header h1 i {
    background: linear-gradient(135deg, var(--accent), #ea580c);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.page-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

/* ─── Buttons ─── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #ea580c);
    color: #000;
}
.btn-primary:hover { filter: brightness(1.1); transform: translateY(-1px); box-shadow: 0 8px 30px rgba(245, 158, 11, 0.25); }

.btn-secondary {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
}
.btn-secondary:hover { background: var(--bg-card-hover); color: var(--text-primary); border-color: var(--border-hover); }

.btn-success { background: rgba(34, 197, 94, 0.15); border: 1px solid rgba(34, 197, 94, 0.2); color: var(--success); }
.btn-success:hover { background: rgba(34, 197, 94, 0.25); }

.btn-danger { background: rgba(239, 68, 68, 0.15); border: 1px solid rgba(239, 68, 68, 0.2); color: var(--danger); }
.btn-danger:hover { background: rgba(239, 68, 68, 0.25); }

.btn-sm { padding: 6px 14px; font-size: 0.8rem; border-radius: var(--radius-sm); }
.btn-block { width: 100%; justify-content: center; }

/* ─── Forms ─── */
.form-group { margin-bottom: 18px; }

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control, select, textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.9rem;
    outline: none;
    transition: all 0.3s ease;
}
.form-control:focus, select:focus, textarea:focus {
    border-color: var(--border-accent);
    background: var(--bg-card-hover);
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.08);
}
.form-control::placeholder { color: var(--text-dim); }

select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='rgba(255,255,255,0.4)' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}
select option { background: #1a1a1a; color: var(--text-primary); }

textarea { resize: vertical; min-height: 100px; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-section {
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}
.form-section-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.form-section-title i { color: var(--accent); font-size: 0.85rem; }

/* ─── Tables ─── */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--bg-card);
    backdrop-filter: var(--blur);
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead th {
    padding: 14px 16px;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

tbody td {
    padding: 14px 16px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

tbody tr { transition: background 0.2s; }
tbody tr:hover { background: var(--bg-card-hover); }
tbody tr:last-child td { border-bottom: none; }

.table-actions {
    display: flex;
    gap: 6px;
}
.table-actions a, .table-actions button {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}
.table-actions a:hover, .table-actions button:hover { background: var(--bg-card-hover); color: var(--text-primary); border-color: var(--border-hover); }
.table-actions .delete-btn:hover { color: var(--danger); border-color: rgba(239, 68, 68, 0.3); }

/* ─── Badges ─── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 0.72rem;
    font-weight: 600;
    white-space: nowrap;
}

/* Estado badges */
.badge-disponible, .badge-en_stock { background: rgba(34, 197, 94, 0.12); color: #86efac; border: 1px solid rgba(34, 197, 94, 0.2); }
.badge-vendido { background: rgba(59, 130, 246, 0.12); color: #93c5fd; border: 1px solid rgba(59, 130, 246, 0.2); }
.badge-en_garantia { background: rgba(245, 158, 11, 0.12); color: #fcd34d; border: 1px solid rgba(245, 158, 11, 0.2); }
.badge-devuelto { background: rgba(168, 85, 247, 0.12); color: #c4b5fd; border: 1px solid rgba(168, 85, 247, 0.2); }
.badge-defectuoso { background: rgba(239, 68, 68, 0.12); color: #fca5a5; border: 1px solid rgba(239, 68, 68, 0.2); }

/* Tipo equipo badges */
.badge-panel_solar { background: rgba(245, 158, 11, 0.12); color: #fcd34d; border: 1px solid rgba(245, 158, 11, 0.2); }
.badge-inversor { background: rgba(59, 130, 246, 0.12); color: #93c5fd; border: 1px solid rgba(59, 130, 246, 0.2); }
.badge-bateria { background: rgba(34, 197, 94, 0.12); color: #86efac; border: 1px solid rgba(34, 197, 94, 0.2); }
.badge-controlador_carga { background: rgba(168, 85, 247, 0.12); color: #c4b5fd; border: 1px solid rgba(168, 85, 247, 0.2); }
.badge-microinversor { background: rgba(6, 182, 212, 0.12); color: #67e8f9; border: 1px solid rgba(6, 182, 212, 0.2); }
.badge-kit_completo { background: rgba(236, 72, 153, 0.12); color: #f9a8d4; border: 1px solid rgba(236, 72, 153, 0.2); }

/* Rol badges */
.badge-admin { background: rgba(245, 158, 11, 0.12); color: #fcd34d; border: 1px solid rgba(245, 158, 11, 0.2); }
.badge-vendedor { background: rgba(59, 130, 246, 0.12); color: #93c5fd; border: 1px solid rgba(59, 130, 246, 0.2); }
.badge-encargado { background: rgba(168, 85, 247, 0.12); color: #c4b5fd; border: 1px solid rgba(168, 85, 247, 0.2); }

/* Pago badges */
.badge-efectivo { background: rgba(34, 197, 94, 0.12); color: #86efac; border: 1px solid rgba(34, 197, 94, 0.2); }
.badge-transferencia { background: rgba(59, 130, 246, 0.12); color: #93c5fd; border: 1px solid rgba(59, 130, 246, 0.2); }
.badge-mixto { background: rgba(168, 85, 247, 0.12); color: #c4b5fd; border: 1px solid rgba(168, 85, 247, 0.2); }

/* Garantia badges */
.badge-activa { background: rgba(34, 197, 94, 0.12); color: #86efac; border: 1px solid rgba(34, 197, 94, 0.2); }
.badge-vencida { background: rgba(239, 68, 68, 0.12); color: #fca5a5; border: 1px solid rgba(239, 68, 68, 0.2); }
.badge-utilizada { background: rgba(245, 158, 11, 0.12); color: #fcd34d; border: 1px solid rgba(245, 158, 11, 0.2); }

/* Generic */
.badge-success { background: rgba(34, 197, 94, 0.12); color: #86efac; border: 1px solid rgba(34, 197, 94, 0.2); }
.badge-danger { background: rgba(239, 68, 68, 0.12); color: #fca5a5; border: 1px solid rgba(239, 68, 68, 0.2); }
.badge-warning { background: rgba(245, 158, 11, 0.12); color: #fcd34d; border: 1px solid rgba(245, 158, 11, 0.2); }
.badge-info { background: rgba(59, 130, 246, 0.12); color: #93c5fd; border: 1px solid rgba(59, 130, 246, 0.2); }

/* Stock indicators */
.stock-ok { color: var(--success); }
.stock-bajo { color: var(--danger); }
tr.row-stock-bajo { background: rgba(239, 68, 68, 0.04); }

/* ─── Filters ─── */
.filters {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}
.filters select, .filters input {
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.85rem;
    outline: none;
    transition: all 0.2s;
}
.filters select:focus, .filters input:focus {
    border-color: var(--border-accent);
}
.filters .search-filter {
    flex: 1;
    min-width: 200px;
}

/* ─── Stats Grid ─── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--bg-card);
    backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.3s;
}
.stat-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}
.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}
.stat-icon.ventas { background: rgba(245, 158, 11, 0.12); color: var(--accent); }
.stat-icon.ingresos { background: rgba(34, 197, 94, 0.12); color: var(--success); }
.stat-icon.equipos { background: rgba(59, 130, 246, 0.12); color: var(--info); }
.stat-icon.garantias { background: rgba(239, 68, 68, 0.12); color: var(--danger); }
.stat-icon.ganancias { background: rgba(168, 85, 247, 0.12); color: var(--purple); }
.stat-icon.caja { background: rgba(236, 72, 153, 0.12); color: var(--pink); }

.stat-info h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}
.stat-info p { font-size: 0.78rem; color: var(--text-muted); }

/* ─── Detail Grid ─── */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.detail-card {
    background: var(--bg-card);
    backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
}
.detail-card h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.detail-card h3 i { color: var(--accent); }
.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}
.detail-item:last-child { border-bottom: none; }
.detail-label { font-size: 0.82rem; color: var(--text-muted); }
.detail-value { font-size: 0.85rem; font-weight: 500; color: var(--text-primary); text-align: right; }

/* ─── Venta Layout (Two Panel) ─── */
.venta-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 20px;
    align-items: start;
}
.venta-panel {
    background: var(--bg-card);
    backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
}
.venta-resumen {
    position: sticky;
    top: calc(var(--header-height) + 24px);
}

.venta-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius);
    padding: 4px;
}
.venta-tab {
    flex: 1;
    padding: 10px;
    text-align: center;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-family: var(--font);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.venta-tab.active {
    background: rgba(245, 158, 11, 0.12);
    color: var(--accent);
}

/* ─── Caja Styles ─── */
.caja-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px;
    background: var(--bg-card);
    backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
}
.caja-status-label {
    display: flex;
    align-items: center;
    gap: 12px;
}
.caja-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.caja-dot.abierta {
    background: var(--success);
    box-shadow: 0 0 12px rgba(34, 197, 94, 0.5);
    animation: cajaPulse 2s infinite;
}
.caja-dot.cerrada { background: var(--danger); }
@keyframes cajaPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ─── Inventario Grid ─── */
.inventario-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

/* ─── Modals ─── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    padding: 20px;
}
.modal-overlay.show { opacity: 1; visibility: visible; }

.modal {
    width: 100%;
    max-width: 500px;
    background: rgba(20, 20, 20, 0.95);
    backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
    transform: scale(0.95) translateY(10px);
    transition: transform 0.3s;
    overflow: hidden;
}
.modal-overlay.show .modal { transform: scale(1) translateY(0); }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}
.modal-header h3 {
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}
.modal-header h3 i { color: var(--accent); }
.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 4px;
    transition: color 0.2s;
}
.modal-close:hover { color: var(--text-primary); }
.modal-body { padding: 24px; }
.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 16px 24px;
    border-top: 1px solid var(--border);
}

/* ─── Alerts (in page) ─── */
.alert {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 0.85rem;
    font-weight: 500;
}
.alert-error, .alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}
.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    color: #86efac;
}
.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
    color: #fcd34d;
}
.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: #93c5fd;
}

/* ─── Utilities ─── */
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--accent) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.font-mono { font-family: 'SF Mono', 'Fira Code', monospace; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.d-flex { display: flex; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }

.empty-state {
    padding: 60px 20px;
    text-align: center;
    color: var(--text-muted);
}
.empty-state i { font-size: 2.5rem; margin-bottom: 12px; display: block; color: var(--text-dim); }
.empty-state p { font-size: 0.9rem; }

/* ─── Notification Toast ─── */
.notification {
    padding: 14px 20px;
    background: rgba(20, 20, 20, 0.95);
    backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    transition: all 0.3s;
    color: var(--text-primary);
}
.notification-success { border-left: 3px solid var(--success); }
.notification-error { border-left: 3px solid var(--danger); }
.notification-warning { border-left: 3px solid var(--accent); }

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.2); }

/* ─── Print ─── */
@media print {
    .main-header, .sidebar, .sidebar-overlay, .flash-message, .page-actions, .filters { display: none !important; }
    .main-content { margin: 0 !important; padding: 10px !important; }
    body { background: #fff !important; color: #000 !important; }
    .card, .detail-card, .table-container { background: #fff !important; border: 1px solid #ddd !important; }
    table th, table td { color: #000 !important; border-bottom: 1px solid #ddd !important; }
}

/* ─── Responsive ─── */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    .sidebar.mobile-open ~ .sidebar-overlay { display: block; }
    .main-content { margin-left: 0 !important; }
    .venta-layout { grid-template-columns: 1fr; }
    .detail-grid { grid-template-columns: 1fr; }
    .header-center { display: none; }
}

@media (max-width: 768px) {
    .main-content { padding: 16px; }
    .page-header { flex-direction: column; align-items: flex-start; }
    .page-header h1 { font-size: 1.2rem; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .filters { flex-direction: column; }
    .filters .search-filter { min-width: 100%; }
    .inventario-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .main-content { padding: 12px; }
    .card { padding: 16px; }
}