/* ===================================
   SISTEMA DE GESTIÓN - DESIGN SYSTEM v2
   Modern Enterprise UI 2024
   =================================== */

/* ── TOKENS ────────────────────────── */
:root {
    /* Palette */
    --color-primary: #4f46e5;
    --color-primary-hover: #4338ca;
    --color-primary-light: #eef2ff;
    --color-success: #059669;
    --color-success-light: #ecfdf5;
    --color-danger: #dc2626;
    --color-danger-light: #fef2f2;
    --color-warning: #d97706;
    --color-warning-light: #fffbeb;
    --color-info: #2563eb;
    --color-info-light: #eff6ff;

    /* Surfaces */
    --bg-body: #f1f5f9;
    --bg-card: #ffffff;
    --bg-input: #ffffff;
    --bg-navbar: #ffffff;
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;

    /* Text */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b; /* WCAG AA: 4.6:1 sobre blanco (antes #94a3b8 = 2.85:1, FAIL) */
    --text-inverse: #ffffff;

    /* Sidebar */
    --sidebar-bg: #0f172a;
    --sidebar-bg-hover: rgba(255,255,255,0.06);
    --sidebar-bg-active: rgba(79,70,229,0.18);
    --sidebar-text: rgba(255,255,255,0.65);
    --sidebar-text-hover: #ffffff;
    --sidebar-text-active: #ffffff;
    --sidebar-width: 260px;
    --sidebar-collapsed: 72px;
    --sidebar-accent: #4f46e5;

    /* Spacing scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;

    /* Borders */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.04), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.06), 0 4px 6px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.08);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Layout */
    --navbar-height: 64px;
}

/* ── RESET / BASE ──────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
    font-family: 'Nunito', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body.page-loaded {
    animation: pageReveal 0.4s ease-out;
}

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

/* ── SCROLLBAR ─────────────────────── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ── LAYOUT ────────────────────────── */
.main-content {
    min-height: calc(100vh - var(--navbar-height));
    margin-left: var(--sidebar-width);
    padding: var(--space-xl);
    transition: margin-left var(--transition-slow);
    position: relative;
    z-index: auto;
}

body.sidebar-collapsed .main-content {
    margin-left: var(--sidebar-collapsed);
}

main.container,
main.container-fluid {
    padding-top: var(--space-lg);
    padding-bottom: 3rem;
}

/* ── PROGRESS BAR ──────────────────── */
.page-progress-bar {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: transparent;
    z-index: 9999;
    pointer-events: none;
}
.page-progress {
    height: 100%; width: 0;
    background: linear-gradient(90deg, var(--color-primary), #818cf8, var(--color-success));
    transition: width 0.6s ease;
}

/* ═════════════════════════════════════
   SIDEBAR
   ═════════════════════════════════════ */
.sidebar-wrapper {
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    z-index: 1030;
}

.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-slow);
    box-shadow: 2px 0 24px rgba(0,0,0,0.12);
    overflow: hidden;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

/* Header */
.sidebar-header {
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    min-height: var(--navbar-height);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    min-width: 0;
    flex: 1;
}

.sidebar-brand-icon {
    width: 42px; height: 42px;
    background: linear-gradient(135deg, var(--sidebar-accent), #7c3aed);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(79,70,229,0.35);
}
.sidebar-brand-icon i {
    font-size: 1.3rem;
    color: #fff;
}

.sidebar-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    min-width: 0;
    transition: opacity var(--transition-fast);
}
.sidebar.collapsed .sidebar-brand-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
}
.brand-main {
    font-size: 0.95rem;
    font-weight: 800;
    color: #fff;
    white-space: nowrap;
}
.brand-sub {
    font-size: 0.68rem;
    color: rgba(255,255,255,0.45);
    white-space: nowrap;
}

/* Toggle */
.sidebar-toggle {
    width: 30px; height: 30px;
    border: none;
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.6);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition-fast);
    font-size: 0.75rem;
}
.sidebar-toggle:hover {
    background: var(--sidebar-accent);
    color: #fff;
}

/* Nav */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-sm) var(--space-sm);
}
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

.nav-list {
    list-style: none;
    padding: 0; margin: 0;
}

/* Divider */
.nav-divider {
    padding: var(--space-md) var(--space-md) var(--space-xs);
    margin: var(--space-xs) 0;
}
.nav-divider span {
    font-size: 0.65rem;
    font-weight: 700;
    color: rgba(255,255,255,0.3);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}
.sidebar.collapsed .nav-divider { display: none; }

/* Nav Item */
.nav-item {
    margin: 1px 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem var(--space-md);
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-weight: 500;
    font-size: 0.875rem;
    position: relative;
}

.nav-link:hover {
    color: var(--sidebar-text-hover);
    background: var(--sidebar-bg-hover);
}

.nav-link.active,
.nav-item.active > .nav-link {
    color: var(--sidebar-text-active);
    background: var(--sidebar-bg-active);
    font-weight: 600;
}

.nav-link.active::before,
.nav-item.active > .nav-link::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    transform: translateY(-50%);
    width: 3px; height: 24px;
    background: var(--sidebar-accent);
    border-radius: 0 3px 3px 0;
}

.nav-link i {
    font-size: 1.15rem;
    width: 22px;
    text-align: center;
    flex-shrink: 0;
}

.nav-text {
    white-space: nowrap;
    transition: opacity var(--transition-fast);
}
.sidebar.collapsed .nav-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

/* Submenu arrow */
.submenu-arrow {
    margin-left: auto;
    font-size: 0.65rem;
    transition: transform var(--transition-fast);
    opacity: 0.5;
}
.submenu-arrow.rotate-down {
    transform: rotate(180deg);
}

/* Submenu */
.submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
    background: rgba(0,0,0,0.15);
    border-radius: var(--radius-sm);
    margin: 2px var(--space-xs);
}

.submenu.show {
    max-height: 600px;
}

.submenu li a {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.5rem var(--space-md) 0.5rem 2.75rem;
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    font-size: 0.82rem;
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
}

.submenu li a:hover {
    color: #fff;
    background: rgba(255,255,255,0.04);
}

.submenu li a i {
    font-size: 0.8rem;
    width: 18px;
}

.submenu-divider {
    padding: var(--space-sm) var(--space-md) 2px 1.5rem;
    font-size: 0.63rem;
    font-weight: 700;
    color: rgba(255,255,255,0.25);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--space-sm) var(--space-md) var(--space-md);
    border-top: 1px solid rgba(255,255,255,0.06);
}

.sidebar-user-info {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.65rem;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
    transition: background var(--transition-fast);
}
.sidebar-user-info:hover {
    background: rgba(255,255,255,0.04);
}

.sidebar.collapsed .sidebar-user-info {
    justify-content: center;
    padding: 0.65rem;
}

.user-avatar-small {
    width: 38px; height: 38px;
    background: linear-gradient(135deg, var(--sidebar-accent), #7c3aed);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.user-avatar-small i {
    font-size: 1.4rem;
    color: #fff;
}

.user-details {
    min-width: 0;
    transition: opacity var(--transition-fast);
}
.sidebar.collapsed .user-details {
    opacity: 0; width: 0; overflow: hidden;
}

.user-name-small {
    font-weight: 700;
    color: #fff;
    font-size: 0.82rem;
    white-space: nowrap;
}
.user-role-small {
    font-size: 0.72rem;
    color: rgba(255,255,255,0.45);
    white-space: nowrap;
}

/* Logout button */
.btn-logout {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    width: 100%;
    padding: 0.6rem;
    background: rgba(220,38,38,0.15);
    color: #fca5a5;
    border: 1px solid rgba(220,38,38,0.2);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.82rem;
    transition: all var(--transition-fast);
    cursor: pointer;
}
.btn-logout:hover {
    background: var(--color-danger);
    color: #fff;
    border-color: var(--color-danger);
    box-shadow: 0 4px 12px rgba(220,38,38,0.3);
}

.sidebar.collapsed .btn-logout .nav-text {
    display: none;
}

/* Overlay (mobile) */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,0.6);
    z-index: 1029;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    backdrop-filter: blur(4px);
}
.sidebar-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* Floating toggle (mobile) */
.sidebar-toggle-floating {
    position: fixed;
    bottom: 1.5rem; right: 1.5rem;
    width: 52px; height: 52px;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: 50%;
    box-shadow: 0 4px 16px rgba(79,70,229,0.4);
    cursor: pointer;
    z-index: 1028;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all var(--transition-fast);
}
.sidebar-toggle-floating:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 20px rgba(79,70,229,0.5);
}

/* ═════════════════════════════════════
   NAVBAR
   ═════════════════════════════════════ */
.navbar {
    min-height: var(--navbar-height);
    background: var(--bg-navbar) !important;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-xs);
    z-index: 1040;
    position: sticky;
    top: 0;
    transition: all var(--transition-base);
}

#navbarSidebarToggle {
    color: var(--text-secondary) !important;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none !important;
}
#navbarSidebarToggle:hover {
    color: var(--text-primary) !important;
    background: var(--color-border-light);
}

/* Brand mobile */
.navbar-brand {
    font-weight: 700;
    color: var(--text-primary) !important;
    text-decoration: none;
}
.navbar-brand .brand-icon-wrapper {
    background: linear-gradient(135deg, var(--color-primary), #7c3aed);
    padding: 0.4rem;
    border-radius: var(--radius-sm);
    display: inline-flex;
    box-shadow: 0 2px 8px rgba(79,70,229,0.3);
}
.navbar-brand .brand-icon-wrapper i {
    font-size: 1.1rem;
    color: #fff;
}

.navbar-toggler {
    border: none !important;
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
}
.navbar-toggler:focus {
    box-shadow: 0 0 0 2px rgba(79,70,229,0.3);
}

/* Nav links in navbar */
.navbar .nav-link {
    color: var(--text-secondary) !important;
    padding: 0.5rem 0.75rem !important;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}
.navbar .nav-link:hover {
    color: var(--text-primary) !important;
    background: var(--color-border-light);
}

/* Dark mode toggle */
#darkModeToggle {
    padding: 0.5rem !important;
    border-radius: var(--radius-md);
}

/* User dropdown */
.user-dropdown {
    display: flex !important;
    align-items: center;
    gap: 0.65rem;
    padding: 0.35rem 0.75rem !important;
    border-radius: 3rem !important;
    background: transparent;
    transition: all var(--transition-fast);
}
.user-dropdown:hover {
    background: var(--color-border-light) !important;
}

.user-avatar {
    width: 34px; height: 34px;
    background: linear-gradient(135deg, var(--color-primary), #7c3aed);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.user-avatar i {
    font-size: 1.1rem;
    color: #fff;
}

.user-info {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}
.user-name {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-primary);
}
.user-role {
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* ═════════════════════════════════════
   TIPOGRAPHY
   ═════════════════════════════════════ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

h1 { font-size: 1.65rem; margin-bottom: var(--space-lg); }

/* ═════════════════════════════════════
   CARDS
   ═════════════════════════════════════ */
.card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    box-shadow: var(--shadow-xs);
    transition: box-shadow var(--transition-base);
    margin-bottom: var(--space-lg);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--color-border);
    font-weight: 700;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
    color: var(--text-primary);
}

.card-header.bg-primary,
.card-header.bg-success,
.card-header.bg-danger,
.card-header.bg-warning,
.card-header.bg-info,
.card-header.bg-dark {
    color: #fff;
    border-bottom: none;
}

.card-body {
    padding: var(--space-lg);
}

.card-footer {
    background: var(--color-border-light);
    border-top: 1px solid var(--color-border);
    padding: 0.875rem 1.25rem;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg) !important;
}

/* Dashboard Metric Cards */
.metric-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}

.metric-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
}

.metric-card-primary::before { background: var(--color-primary); }
.metric-card-success::before { background: var(--color-success); }
.metric-card-warning::before { background: var(--color-warning); }
.metric-card-danger::before  { background: var(--color-danger); }
.metric-card-info::before    { background: var(--color-info); }
.metric-card-dark::before    { background: #334155; }
.metric-card-teal::before    { background: #0d9488; }

.metric-card .card-body {
    padding: var(--space-lg) var(--space-lg) var(--space-lg) calc(var(--space-lg) + 4px);
}

.metric-label {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-xs);
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    letter-spacing: -0.02em;
}

.metric-trend {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
}
.metric-trend.text-success { color: var(--color-success) !important; }
.metric-trend.text-danger  { color: var(--color-danger) !important; }

.metric-icon {
    width: 48px; height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}
.metric-card-primary .metric-icon { background: var(--color-primary-light); color: var(--color-primary); }
.metric-card-success .metric-icon { background: var(--color-success-light); color: var(--color-success); }
.metric-card-warning .metric-icon { background: var(--color-warning-light); color: var(--color-warning); }
.metric-card-danger  .metric-icon { background: var(--color-danger-light);  color: var(--color-danger); }
.metric-card-info    .metric-icon { background: var(--color-info-light);    color: var(--color-info); }
.metric-card-dark    .metric-icon { background: #f1f5f9; color: #334155; }
.metric-card-teal    .metric-icon { background: #ccfbf1; color: #0d9488; }

/* Metric card footer with accent */
.metric-card .card-footer {
    border-top: 1px solid var(--color-border);
    padding: 0.75rem 1.25rem;
}

.metric-card-primary .card-footer { background: var(--color-primary-light); }
.metric-card-success .card-footer { background: var(--color-success-light); }
.metric-card-warning .card-footer { background: var(--color-warning-light); }
.metric-card-danger  .card-footer { background: var(--color-danger-light); }
.metric-card-info    .card-footer { background: var(--color-info-light); }
.metric-card-dark    .card-footer { background: #f1f5f9; }
.metric-card-teal    .card-footer { background: #ccfbf1; }

.metric-card .card-footer a {
    color: var(--text-primary) !important;
    font-weight: 600;
    font-size: 0.82rem;
}
.metric-card-primary .card-footer a { color: var(--color-primary) !important; }
.metric-card-success .card-footer a { color: var(--color-success) !important; }
.metric-card-warning .card-footer a { color: var(--color-warning) !important; }
.metric-card-danger  .card-footer a { color: var(--color-danger) !important; }
.metric-card-info    .card-footer a { color: var(--color-info) !important; }
.metric-card-dark    .card-footer a { color: #334155 !important; }
.metric-card-teal    .card-footer a { color: #0d9488 !important; }

/* ═════════════════════════════════════
   TABLES
   ═════════════════════════════════════ */
.table {
    border-radius: var(--radius-md);
    overflow: hidden;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--color-border);
}

.table thead th {
    background: #f8fafc;
    color: var(--text-secondary);
    font-weight: 700;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.85rem 1rem;
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}

.table tbody td {
    padding: 0.75rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--color-border-light);
    color: var(--text-primary);
    font-size: 0.9rem;
}

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

.table-striped tbody tr:nth-of-type(odd) {
    background: #f8fafc;
}

.table-hover tbody tr:hover {
    background: var(--color-primary-light);
}

.table-bordered td,
.table-bordered th {
    border-color: var(--color-border);
}

/* ═════════════════════════════════════
   BUTTONS
   ═════════════════════════════════════ */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 600;
    padding: 0.55rem 1.15rem;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

.btn-success {
    background: var(--color-success);
    border-color: var(--color-success);
}
.btn-danger {
    background: var(--color-danger);
    border-color: var(--color-danger);
}
.btn-warning {
    background: var(--color-warning);
    border-color: var(--color-warning);
    color: #fff;
}
.btn-info {
    background: var(--color-info);
    border-color: var(--color-info);
}

.btn-outline-primary {
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.btn-outline-primary:hover {
    background: var(--color-primary);
    color: #fff;
}

.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.8rem; }
.btn-lg { padding: 0.7rem 1.5rem; font-size: 1rem; }

.btn-link {
    color: var(--text-secondary);
    text-decoration: none;
}
.btn-link:hover {
    color: var(--color-primary);
}

/* ═════════════════════════════════════
   FORMS
   ═════════════════════════════════════ */
.form-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.form-control,
.form-select {
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    padding: 0.6rem 0.85rem;
    font-size: 0.9rem;
    background: var(--bg-input);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.12);
    outline: none;
}

.form-control::placeholder {
    color: var(--text-muted);
}

.input-group-text {
    background: #f8fafc;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ═════════════════════════════════════
   ALERTS
   ═════════════════════════════════════ */
.alert {
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    padding: var(--space-md) var(--space-lg);
    font-weight: 500;
    font-size: 0.9rem;
}

.alert-success {
    background: var(--color-success-light);
    border-color: rgba(5,150,105,0.15);
    color: #065f46;
}
.alert-danger {
    background: var(--color-danger-light);
    border-color: rgba(220,38,38,0.15);
    color: #991b1b;
}
.alert-warning {
    background: var(--color-warning-light);
    border-color: rgba(217,119,6,0.15);
    color: #92400e;
}
.alert-info {
    background: var(--color-info-light);
    border-color: rgba(37,99,235,0.15);
    color: #1e40af;
}

/* ═════════════════════════════════════
   BADGES
   ═════════════════════════════════════ */
.badge {
    font-weight: 600;
    padding: 0.35em 0.7em;
    border-radius: 2rem;
    font-size: 0.75rem;
    letter-spacing: 0.2px;
}

.badge.bg-primary   { background: var(--color-primary) !important; }
.badge.bg-success   { background: var(--color-success) !important; }
.badge.bg-danger    { background: var(--color-danger) !important; }
.badge.bg-warning   { background: var(--color-warning) !important; color: #fff !important; }
.badge.bg-info      { background: var(--color-info) !important; }

/* ═════════════════════════════════════
   DROPDOWNS
   ═════════════════════════════════════ */
.dropdown-menu {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-xs) 0;
    margin-top: var(--space-xs);
    background: var(--bg-card);
    min-width: 220px;
    overflow: hidden;
}

.dropdown-item {
    padding: 0.65rem 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.65rem;
}
.dropdown-item i {
    width: 18px;
    text-align: center;
    font-size: 0.9rem;
}

.dropdown-item:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.dropdown-divider {
    margin: var(--space-xs) 0;
    border-top: 1px solid var(--color-border-light);
}

.dropdown-header {
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 1px;
    padding: 0.65rem 1rem;
}

/* User menu (navbar) */
.user-menu {
    min-width: 240px;
}
.user-menu .dropdown-header {
    background: linear-gradient(135deg, var(--color-primary), #7c3aed);
    color: #fff;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 1.5rem 1rem;
    text-transform: none;
    text-align: center;
}
.user-avatar-large {
    width: 60px; height: 60px;
    margin: 0 auto var(--space-sm);
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.user-avatar-large i {
    font-size: 2.5rem;
    color: #fff;
}

/* ═════════════════════════════════════
   NOTIFICATIONS
   ═════════════════════════════════════ */
.notification-badge {
    position: absolute;
    top: 2px; right: 2px;
    background: var(--color-danger);
    color: #fff;
    font-size: 0.6rem;
    font-weight: 700;
    padding: 0.1rem 0.35rem;
    border-radius: 50%;
    min-width: 16px; height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(220,38,38,0.4);
}

.notification-badge.pulse {
    animation: badgePulse 2s infinite;
}
@keyframes badgePulse {
    0%, 100% { transform: scale(1); }
    50%      { transform: scale(1.15); box-shadow: 0 2px 10px rgba(220,38,38,0.5); }
}

.notification-menu {
    min-width: 340px;
    max-height: 420px;
    overflow-y: auto;
}

.notification-menu .dropdown-header {
    position: sticky;
    top: 0; z-index: 2;
    background: var(--bg-card);
}

.notification-item-wrap {
    display: flex;
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition-fast);
    color: var(--text-primary);
    text-decoration: none;
}
.notification-item-wrap:hover {
    background: var(--color-primary-light);
    text-decoration: none;
    color: var(--text-primary);
}

.notification-icon-wrap {
    width: 38px; height: 38px;
    border-radius: 50%;
    background: var(--color-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.notification-item-wrap:hover .notification-icon-wrap {
    background: var(--color-primary);
    color: #fff;
    transition: all var(--transition-fast);
}

/* ═════════════════════════════════════
   MODALS
   ═════════════════════════════════════ */
.modal-content {
    border: none;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.modal-header {
    background: linear-gradient(135deg, var(--color-primary), #7c3aed);
    color: #fff;
    padding: 1rem 1.25rem;
    border-bottom: none;
}
.modal-header .btn-close {
    filter: brightness(0) invert(1);
    opacity: 0.8;
}
.modal-header .btn-close:hover {
    opacity: 1;
}
.modal-title {
    font-weight: 700;
    color: #fff;
}

.modal-body {
    padding: var(--space-lg);
}

.modal-footer {
    border-top: 1px solid var(--color-border);
    padding: 1rem 1.25rem;
}

/* POS Payment Modal z-index fix */
.modal {
    z-index: 10050 !important;
}
.modal-backdrop {
    z-index: 10040 !important;
}

#paymentModal {
    z-index: 100000 !important;
    position: fixed !important;
}
#paymentModal .modal-dialog {
    z-index: 100001 !important;
    position: relative;
}
#paymentModal .modal-content {
    z-index: 100002 !important;
    position: relative;
    pointer-events: auto !important;
}
#paymentModal.show .modal-dialog {
    visibility: visible !important;
    opacity: 1 !important;
}
#paymentModal .modal-footer button,
#paymentModal .modal-header button {
    pointer-events: auto !important;
    z-index: 100003 !important;
    position: relative;
}

body.modal-open #sidebarWrapper {
    overflow: hidden;
}

/* ═════════════════════════════════════
   POS - SEARCH & CART
   ═════════════════════════════════════ */
#searchResults {
    max-height: 320px;
    overflow-y: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-top: 2px;
    box-shadow: var(--shadow-lg);
    background: var(--bg-card);
}

#searchResults .list-group-item {
    cursor: pointer;
    padding: 0.75rem 1rem;
    border: none;
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition-fast);
}
#searchResults .list-group-item:last-child {
    border-bottom: none;
}
#searchResults .list-group-item:hover,
#searchResults .list-group-item.active {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

#searchResults .list-group-item small {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* Keyboard hint */
#searchProduct + small kbd {
    background: var(--color-border-light);
    border: 1px solid var(--color-border);
    border-radius: 3px;
    padding: 0.1rem 0.35rem;
    font-size: 0.7rem;
    color: var(--text-muted);
}

#cartItems input.form-control {
    text-align: center;
    width: 70px;
}
#cartItems .remove-item {
    transition: all var(--transition-fast);
    color: var(--text-muted);
}
#cartItems .remove-item:hover {
    color: var(--color-danger);
    transform: scale(1.2);
}

/* ═════════════════════════════════════
   LIST GROUP
   ═════════════════════════════════════ */
.list-group-item {
    border: 1px solid var(--color-border-light);
    padding: 0.85rem 1.15rem;
    transition: all var(--transition-fast);
}
.list-group-item:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
}
.list-group-item-action {
    cursor: pointer;
}

/* ═════════════════════════════════════
   BREADCRUMB
   ═════════════════════════════════════ */
.breadcrumb {
    background: transparent;
    padding: 0;
    font-size: 0.85rem;
}
.breadcrumb-item a {
    color: var(--text-muted);
    text-decoration: none;
}
.breadcrumb-item a:hover {
    color: var(--color-primary);
}
.breadcrumb-item.active {
    color: var(--color-primary);
    font-weight: 600;
}

/* ═════════════════════════════════════
   FOOTER
   ═════════════════════════════════════ */
.main-footer {
    background: var(--bg-card);
    border-top: 1px solid var(--color-border);
    padding: 1.25rem 0;
    margin-top: 2rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.main-footer a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}
.main-footer a:hover {
    color: var(--color-primary) !important;
}

/* ═════════════════════════════════════
   LOGIN PAGE
   ═════════════════════════════════════ */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 50%, #f1f5f9 100%);
    padding: var(--space-lg);
}

.login-card {
    width: 100%;
    max-width: 420px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--bg-card);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.login-card-header {
    background: linear-gradient(135deg, var(--color-primary), #7c3aed);
    color: #fff;
    padding: 2rem 2rem 1.5rem;
    text-align: center;
}

.login-card-header .login-logo {
    width: 64px; height: 64px;
    margin: 0 auto 1rem;
    background: rgba(255,255,255,0.18);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
}
.login-card-header .login-logo i {
    font-size: 2rem;
    color: #fff;
}

.login-card-header h3 {
    color: #fff;
    font-weight: 800;
    font-size: 1.4rem;
    margin-bottom: var(--space-xs);
}

.login-card-header p {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    margin: 0;
}

.login-card-body {
    padding: 2rem;
}

/* ═════════════════════════════════════
   RESPONSIVE
   ═════════════════════════════════════ */
@media (max-width: 992px) {
    .main-content {
        margin-left: 0 !important;
    }

    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar-wrapper.show .sidebar {
        transform: translateX(0);
    }
    .sidebar.collapsed {
        width: var(--sidebar-width);
    }
    .sidebar-toggle-floating {
        display: flex;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: var(--space-md);
    }
    .card-body {
        padding: var(--space-md);
    }
    .table {
        font-size: 0.8rem;
    }
    .btn {
        font-size: 0.82rem;
        padding: 0.45rem 0.9rem;
    }
    h1 { font-size: 1.35rem; }
    .metric-value { font-size: 1.4rem; }
}

/* ═════════════════════════════════════
   DARK MODE
   ═════════════════════════════════════ */
body.dark-mode {
    --bg-body: #0f172a;
    --bg-card: #1e293b;
    --bg-input: #1e293b;
    --bg-navbar: #1e293b;
    --color-border: #334155;
    --color-border-light: #1e293b;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    color: var(--text-primary);
}

body.dark-mode .navbar {
    background: var(--bg-navbar) !important;
    border-bottom-color: var(--color-border);
}

body.dark-mode #navbarSidebarToggle {
    color: var(--text-secondary) !important;
}
body.dark-mode #navbarSidebarToggle:hover {
    color: var(--text-primary) !important;
    background: rgba(255,255,255,0.05);
}

body.dark-mode .navbar .nav-link {
    color: var(--text-secondary) !important;
}
body.dark-mode .navbar .nav-link:hover {
    color: var(--text-primary) !important;
    background: rgba(255,255,255,0.05);
}

body.dark-mode .navbar-brand {
    color: var(--text-primary) !important;
}

body.dark-mode .user-name {
    color: var(--text-primary);
}

body.dark-mode .user-dropdown:hover {
    background: rgba(255,255,255,0.05) !important;
}

/* Dark mode - cards */
body.dark-mode .card {
    background: var(--bg-card);
    border-color: var(--color-border);
}

body.dark-mode .card-header {
    border-bottom-color: var(--color-border);
    color: var(--text-primary);
}

body.dark-mode .card-footer {
    background: rgba(0,0,0,0.15);
    border-top-color: var(--color-border);
    color: var(--text-secondary);
}

body.dark-mode .card-footer a {
    color: var(--text-primary) !important;
}

/* Dark mode - tables */
body.dark-mode .table {
    border-color: var(--color-border);
}
body.dark-mode .table thead th {
    background: rgba(255,255,255,0.03);
    color: var(--text-secondary);
    border-bottom-color: var(--color-border);
}
body.dark-mode .table tbody td {
    border-bottom-color: var(--color-border);
    color: var(--text-primary);
}
body.dark-mode .table-striped tbody tr:nth-of-type(odd) {
    background: rgba(255,255,255,0.02);
}
body.dark-mode .table-hover tbody tr:hover {
    background: rgba(79,70,229,0.08);
}
body.dark-mode .table-bordered td,
body.dark-mode .table-bordered th {
    border-color: var(--color-border);
}

/* Dark mode - forms */
body.dark-mode .form-control,
body.dark-mode .form-select {
    background: var(--bg-input);
    border-color: var(--color-border);
    color: var(--text-primary);
}
body.dark-mode .form-control:focus,
body.dark-mode .form-select:focus {
    border-color: var(--color-primary);
}
body.dark-mode .form-label {
    color: var(--text-primary) !important;
}
body.dark-mode .input-group-text {
    background: #0f172a;
    border-color: var(--color-border);
    color: var(--text-muted);
}
body.dark-mode ::placeholder { color: var(--text-muted); }

/* Dark mode - dropdowns */
body.dark-mode .dropdown-menu {
    background: var(--bg-card);
    border-color: var(--color-border);
}

body.dark-mode .dropdown-item {
    color: var(--text-secondary);
}
body.dark-mode .dropdown-item:hover {
    background: rgba(79,70,229,0.12);
    color: #a5b4fc;
}

body.dark-mode .dropdown-header {
    color: var(--text-muted);
}

body.dark-mode .dropdown-divider {
    border-top-color: var(--color-border);
}

body.dark-mode .notification-menu .dropdown-header {
    background: var(--bg-card);
}

body.dark-mode .notification-item-wrap {
    border-bottom-color: var(--color-border);
}

/* Dark mode - modals */
body.dark-mode .modal-content {
    background: var(--bg-card);
}
body.dark-mode .modal-header {
    border-bottom-color: var(--color-border);
}
body.dark-mode .modal-footer {
    border-top-color: var(--color-border);
}
body.dark-mode .btn-close {
    filter: brightness(0) invert(1);
}

/* Dark mode - list group */
body.dark-mode .list-group-item {
    background: var(--bg-card);
    border-color: var(--color-border);
    color: var(--text-primary);
}
body.dark-mode .list-group-item:hover {
    background: rgba(79,70,229,0.08);
}

/* Dark mode - alerts */
body.dark-mode .alert-success {
    background: rgba(5,150,105,0.12);
    border-color: rgba(5,150,105,0.2);
    color: #6ee7b7;
}
body.dark-mode .alert-danger {
    background: rgba(220,38,38,0.12);
    border-color: rgba(220,38,38,0.2);
    color: #fca5a5;
}
body.dark-mode .alert-warning {
    background: rgba(217,119,6,0.12);
    border-color: rgba(217,119,6,0.2);
    color: #fcd34d;
}
body.dark-mode .alert-info {
    background: rgba(37,99,235,0.12);
    border-color: rgba(37,99,235,0.2);
    color: #93c5fd;
}

/* Dark mode - footer */
body.dark-mode .main-footer {
    background: var(--bg-card);
    border-top-color: var(--color-border);
}

/* Dark mode - search results */
body.dark-mode #searchResults {
    background: var(--bg-card);
    border-color: var(--color-border);
}
body.dark-mode #searchResults .list-group-item {
    border-bottom-color: var(--color-border);
}
body.dark-mode #searchProduct + small kbd {
    background: var(--bg-card);
    border-color: var(--color-border);
    color: var(--text-muted);
}

/* Dark mode - navbar toggler */
body.dark-mode .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.6)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Dark mode - breadcrumb */
body.dark-mode .breadcrumb-item a {
    color: var(--text-muted);
}

/* Dark mode - anchor */
body.dark-mode a {
    color: #a5b4fc;
}
body.dark-mode a:hover {
    color: #c7d2fe;
}

/* Dark mode - small text */
body.dark-mode small,
body.dark-mode .small {
    color: var(--text-muted);
}

/* Dark mode - metric cards */
body.dark-mode .metric-card-dark .metric-icon { background: rgba(255,255,255,0.08); color: #94a3b8; }
body.dark-mode .metric-card-teal .metric-icon { background: rgba(13,148,136,0.15); color: #5eead4; }

body.dark-mode .metric-card-primary .card-footer { background: rgba(79,70,229,0.1); }
body.dark-mode .metric-card-success .card-footer { background: rgba(5,150,105,0.1); }
body.dark-mode .metric-card-warning .card-footer { background: rgba(217,119,6,0.1); }
body.dark-mode .metric-card-danger  .card-footer { background: rgba(220,38,38,0.1); }
body.dark-mode .metric-card-info    .card-footer { background: rgba(37,99,235,0.1); }
body.dark-mode .metric-card-dark    .card-footer { background: rgba(255,255,255,0.04); }
body.dark-mode .metric-card-teal    .card-footer { background: rgba(13,148,136,0.1); }

body.dark-mode .metric-card-primary .card-footer a { color: #a5b4fc !important; }
body.dark-mode .metric-card-success .card-footer a { color: #6ee7b7 !important; }
body.dark-mode .metric-card-warning .card-footer a { color: #fcd34d !important; }
body.dark-mode .metric-card-danger  .card-footer a { color: #fca5a5 !important; }
body.dark-mode .metric-card-info    .card-footer a { color: #93c5fd !important; }
body.dark-mode .metric-card-dark    .card-footer a { color: #cbd5e1 !important; }
body.dark-mode .metric-card-teal    .card-footer a { color: #5eead4 !important; }

/* Dark mode - login */
body.dark-mode .login-wrapper {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
}

/* Dark mode - links in card footer */
body.dark-mode .text-white {
    color: #fff !important;
}

/* ═════════════════════════════════════
   UTILITIES
   ═════════════════════════════════════ */
.shadow-sm-custom { box-shadow: var(--shadow-sm) !important; }
.shadow-custom    { box-shadow: var(--shadow-lg) !important; }
.rounded-custom   { border-radius: var(--radius-lg) !important; }

.text-success-custom { color: var(--color-success) !important; }
.text-danger-custom  { color: var(--color-danger) !important; }
.text-warning-custom { color: var(--color-warning) !important; }
.fw-bold-custom      { font-weight: 700 !important; }

.hover-primary:hover { color: var(--color-primary) !important; }

/* Fade-in animation */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.4s ease-out; }

/* Spinner */
.spinner-border-sm {
    width: 1rem; height: 1rem;
    border-width: 0.15em;
}

/* Text helpers */
.text-muted {
    color: var(--text-muted) !important;
}

.cursor-pointer {
    cursor: pointer !important;
}

.btn-open-calendar {
    transition: all var(--transition-fast);
}

.btn-open-calendar:hover {
    background-color: var(--color-primary-light) !important;
}

.btn-open-calendar:hover i {
    color: var(--color-primary) !important;
}

/* Ocultar selector nativo duplicado dentro de input-groups para mantener estética premium */
.input-group input[type="date"]::-webkit-calendar-picker-indicator {
    display: none !important;
    -webkit-appearance: none !important;
}

/* ===================================
   ACCESIBILIDAD — prefers-reduced-motion
   (WCAG 2.3.3: respeta usuarios con trastornos vestibulares)
   =================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .notification-badge.pulse {
        animation: none !important;
    }
    .page-progress-bar {
        display: none !important;
    }
}

/* ===================================
   prefers-color-scheme: hint de modo oscuro del SO
   Solo aplica si el usuario NO ha elegido manualmente (sin clase .dark-mode).
   El toggle JS añade .dark-mode explícitamente; esta regla es un sensible default
   para primera visita. [Mejora futura: sincronizar con localStorage en footer.php]
   =================================== */
@media (prefers-color-scheme: dark) {
    body:not(.dark-mode):not(.has-manual-theme) {
        color-scheme: dark;
    }
}