/* ============================================
   Sistema de Tickets - Estudios Minimalistas B&N
   Diseño Profesional, Elegante y Moderno
   ============================================ */

:root {
    /* Paleta de Colores - Blanco y Negro */
    --primary-color: #000000;
    --primary-light: #1a1a1a;
    --text-color: #0a0a0a;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --text-light: #d1d5db;

    /* Fondos */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-elevated: #ffffff;

    /* Bordes */
    --border-light: #e5e7eb;
    --border-medium: #d1d5db;
    --border-dark: #9ca3af;

    /* Semánticos (versiones B&N) */
    --success-bg: #ecfdf5;
    --success-text: #065f46;
    --success-border: #6ee7b7;

    --warning-bg: #fefce8;
    --warning-text: #92400e;
    --warning-border: #fde047;

    --danger-bg: #fef2f2;
    --danger-text: #991b1b;
    --danger-border: #fca5a5;

    --info-bg: #f0f9ff;
    --info-text: #075985;
    --info-border: #7dd3fc;

    /* Sombras - Elegantes y sutiles */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.06);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.06);

    /* Radio de bordes */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transiciones */
    --transition-fast: 150ms ease-out;
    --transition-base: 200ms ease-out;
    --transition-slow: 300ms ease-out;
}

/* ============================================
   Base & Reset
   ============================================ */

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-secondary);
    color: var(--text-color);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    font-size: 0.9375rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-weight: 600;
    letter-spacing: -0.025em;
    color: var(--text-color);
}

h1 { font-size: 2rem; font-weight: 700; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
    margin: 0 0 1rem;
}

a {
    color: var(--text-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-light);
}

small {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* ============================================
   Navbar - Minimalista Elegante
   ============================================ */

.navbar {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-xs);
    padding: 0.75rem 1.5rem;
    transition: box-shadow var(--transition-base);
}

.navbar:hover {
    box-shadow: var(--shadow-sm);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.035em;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand i,
.navbar-brand svg {
    color: var(--text-color);
}

.navbar-dark .navbar-brand {
    color: var(--text-color);
}

.navbar-nav .nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.navbar-dark .nav-link {
    color: var(--text-secondary);
}

.navbar-dark .nav-link:hover {
    color: var(--text-color);
}

/* Dropdown */
.dropdown-menu {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    background-color: var(--bg-primary);
    min-width: 12rem;
}

.dropdown-item {
    color: var(--text-color);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dropdown-item:hover {
    background-color: var(--bg-secondary);
    color: var(--text-color);
}

.dropdown-header {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.5rem 0.75rem;
}

.dropdown-divider {
    border-color: var(--border-light);
    margin: 0.5rem 0;
}

/* ============================================
   Cards - Diseño Limpio
   ============================================ */

.card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    overflow: hidden;
}

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

.card-header {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-color);
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-light);
    padding: 1rem 1.5rem;
}

/* ============================================
   Stat Cards - Tarjetas de Estadísticas
   ============================================ */

.stat-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    transition: all var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-medium);
}

.stat-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    background-color: var(--bg-tertiary);
    color: var(--text-color);
    font-size: 1.25rem;
}

.stat-value {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1;
    letter-spacing: -0.035em;
}

/* ============================================
   Badges - Minimalistas
   ============================================ */

.badge {
    padding: 0.375rem 0.625rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    letter-spacing: 0.025em;
    text-transform: uppercase;
}

/* Badges de Estado - Tonos Grises */
.badge-open {
    background-color: var(--bg-tertiary);
    color: var(--text-color);
    border: 1px solid var(--border-light);
}

.badge-assigned {
    background-color: var(--bg-secondary);
    color: var(--text-color);
    border: 1px solid var(--border-medium);
}

.badge-pending {
    background-color: var(--warning-bg);
    color: var(--warning-text);
    border: 1px solid var(--warning-border);
}

.badge-resolved {
    background-color: var(--success-bg);
    color: var(--success-text);
    border: 1px solid var(--success-border);
}

.badge-closed {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
}

/* Badges Bootstrap Override */
.badge.bg-primary {
    background-color: var(--text-color) !important;
}

.badge.bg-secondary {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-color) !important;
}

.badge.bg-light {
    background-color: var(--bg-secondary) !important;
    color: var(--text-color) !important;
    border: 1px solid var(--border-light);
}

.badge.text-dark {
    color: var(--text-color) !important;
}

/* Badges de Prioridad - Minimalistas */
.badge-priority-urgent {
    background-color: var(--danger-bg);
    color: var(--danger-text);
    border: 1px solid var(--danger-border);
}

.badge-priority-high {
    background-color: var(--warning-bg);
    color: var(--warning-text);
    border: 1px solid var(--warning-border);
}

.badge-priority-normal {
    background-color: var(--bg-secondary);
    color: var(--text-color);
    border: 1px solid var(--border-light);
}

.badge-priority-low {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
}

/* ============================================
   Buttons - Elegantes y Modernos
   ============================================ */

.btn {
    border-radius: var(--radius-md);
    padding: 0.5625rem 1.125rem;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    border-width: 1px;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.btn:active {
    transform: scale(0.98);
}

/* Primary - Negro */
.btn-primary {
    background-color: var(--text-color);
    border-color: var(--text-color);
    color: #ffffff;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--primary-light);
    border-color: var(--primary-light);
    color: #ffffff;
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    background-color: #000000;
    border-color: #000000;
}

.btn-primary.disabled,
.btn-primary:disabled {
    background-color: var(--text-muted);
    border-color: var(--text-muted);
}

/* Outline Primary */
.btn-outline-primary {
    color: var(--text-color);
    border-color: var(--border-medium);
    background-color: transparent;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
    background-color: var(--text-color);
    border-color: var(--text-color);
    color: #ffffff;
}

/* Outline Secondary */
.btn-outline-secondary {
    color: var(--text-secondary);
    border-color: var(--border-medium);
    background-color: transparent;
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus {
    background-color: var(--bg-tertiary);
    border-color: var(--border-dark);
    color: var(--text-color);
}

/* Danger */
.btn-danger {
    background-color: var(--danger-text);
    border-color: var(--danger-text);
}

.btn-danger:hover {
    background-color: #7f1d1d;
    border-color: #7f1d1d;
}

.btn-outline-danger {
    color: var(--danger-text);
    border-color: var(--danger-border);
}

.btn-outline-danger:hover {
    background-color: var(--danger-bg);
    color: var(--danger-text);
}

/* Button Sizes */
.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

/* Button Group */
.btn-group .btn {
    border-radius: 0;
}

.btn-group .btn:first-child {
    border-top-left-radius: var(--radius-md);
    border-bottom-left-radius: var(--radius-md);
}

.btn-group .btn:last-child {
    border-top-right-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

.btn-group .btn-outline-primary.active {
    background-color: var(--text-color);
    border-color: var(--text-color);
    color: #ffffff;
}

/* ============================================
   Tables - Limpias y Modernas
   ============================================ */

.table {
    --bs-table-bg: transparent;
    border-collapse: separate;
    border-spacing: 0;
    width: 100%;
}

.table thead th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.6875rem;
    letter-spacing: 0.075em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-light);
    padding: 1rem;
    background-color: var(--bg-secondary);
    text-align: left;
}

.table thead th:first-child {
    border-top-left-radius: var(--radius-md);
}

.table thead th:last-child {
    border-top-right-radius: var(--radius-md);
}

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

.table tbody tr {
    transition: background-color var(--transition-fast);
}

.table tbody tr:hover {
    background-color: var(--bg-secondary);
}

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

.table-hover tbody tr:hover {
    background-color: var(--bg-secondary);
}

.table-responsive {
    border-radius: var(--radius-lg);
}

/* Ticket Row Interactive */
.ticket-item {
    cursor: pointer;
}

.ticket-item:hover td {
    background-color: var(--bg-secondary);
}

/* Table Light Override */
.table .table-light {
    --bs-table-bg: var(--bg-secondary);
    --bs-table-bg-state: var(--bg-secondary);
}

/* ============================================
   Forms - Inputs Elegantes
   ============================================ */

.form-label {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-color);
    margin-bottom: 0.375rem;
}

.form-control,
.form-select {
    border-radius: var(--radius-md);
    border: 1px solid var(--border-medium);
    padding: 0.625rem 0.875rem;
    font-size: 0.9375rem;
    background-color: var(--bg-primary);
    color: var(--text-color);
    transition: all var(--transition-fast);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--text-color);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
    outline: none;
    background-color: var(--bg-primary);
}

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

.form-control:disabled,
.form-select:disabled {
    background-color: var(--bg-secondary);
    color: var(--text-muted);
}

.input-group-text {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    background-color: var(--bg-secondary);
    border-color: var(--border-medium);
    color: var(--text-secondary);
}

.form-control:not(:last-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.form-check-input {
    border-color: var(--border-medium);
    width: 1.125rem;
    height: 1.125rem;
}

.form-check-input:checked {
    background-color: var(--text-color);
    border-color: var(--text-color);
}

/* ============================================
   Alerts - Notificaciones Limpias
   ============================================ */

.alert {
    border-radius: var(--radius-lg);
    border: 1px solid;
    padding: 1rem 1.25rem;
    font-size: 0.9375rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.alert-success {
    background-color: var(--success-bg);
    color: var(--success-text);
    border-color: var(--success-border);
}

.alert-danger {
    background-color: var(--danger-bg);
    color: var(--danger-text);
    border-color: var(--danger-border);
}

.alert-info {
    background-color: var(--info-bg);
    color: var(--info-text);
    border-color: var(--info-border);
}

.alert-warning {
    background-color: var(--warning-bg);
    color: var(--warning-text);
    border-color: var(--warning-border);
}

.alert i {
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.btn-close {
    opacity: 0.5;
    transition: opacity var(--transition-fast);
}

.btn-close:hover {
    opacity: 1;
}

/* ============================================
   Messages / Bubbles
   ============================================ */

.message-bubble {
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    border: 1px solid var(--border-light);
}

.message-customer {
    background-color: var(--bg-secondary);
    border-left: 3px solid var(--border-dark);
}

.message-staff {
    background-color: var(--bg-primary);
    border-left: 3px solid var(--text-color);
    box-shadow: var(--shadow-sm);
}

.message-internal {
    background-color: var(--warning-bg);
    border-left: 3px solid var(--warning-border);
}

.message-content {
    white-space: pre-wrap;
    word-wrap: break-word;
    color: var(--text-color);
}

/* ============================================
   Modals
   ============================================ */

.modal-content {
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.modal-header {
    border-bottom: 1px solid var(--border-light);
    padding: 1.25rem 1.5rem;
    background-color: var(--bg-primary);
}

.modal-body {
    padding: 1.5rem;
    color: var(--text-color);
}

.modal-footer {
    border-top: 1px solid var(--border-light);
    padding: 1rem 1.5rem;
    background-color: var(--bg-secondary);
}

.modal-header .btn-close {
    margin: -0.5rem -0.75rem -0.5rem auto;
}

.modal-header.bg-danger {
    background-color: var(--danger-text) !important;
    color: #ffffff;
}

.modal-header.bg-danger .btn-close {
    filter: brightness(0) invert(1);
}

/* ============================================
   Dashboard Header
   ============================================ */

.dashboard-header h2 {
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.25rem;
    letter-spacing: -0.025em;
}

.dashboard-header p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* ============================================
   User Avatar
   ============================================ */

.user-avatar {
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--text-color);
}

/* ============================================
   Footer
   ============================================ */

footer {
    margin-top: auto;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-light);
}

/* ============================================
   Utilities
   ============================================ */

.font-monospace {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
}

.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

.text-muted {
    color: var(--text-secondary) !important;
}

.bg-light {
    background-color: var(--bg-secondary) !important;
}

.bg-opacity-10 {
    --bs-bg-opacity: 0.1;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    body {
        font-size: 0.875rem;
    }

    .stat-value {
        font-size: 1.75rem;
    }

    .card-body {
        padding: 1rem;
    }

    .table {
        font-size: 0.8125rem;
    }

    .table thead th,
    .table tbody td {
        padding: 0.75rem 0.5rem;
    }

    .navbar {
        padding: 0.5rem 1rem;
    }

    .card {
        border-radius: var(--radius-md);
    }

    .stat-card {
        border-radius: var(--radius-lg);
        padding: 1.25rem;
    }
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card,
.alert,
.modal {
    animation: fadeIn 0.25s ease-out;
}

/* ============================================
   Scrollbar - Minimalista
   ============================================ */

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-dark);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-color);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--border-dark) transparent;
}

/* ============================================
   Focus States - Accesibilidad
   ============================================ */

:focus-visible {
    outline: 2px solid var(--text-color);
    outline-offset: 2px;
}

.btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible {
    outline: 2px solid var(--text-color);
    outline-offset: 2px;
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    .navbar,
    footer,
    .btn,
    .btn-group {
        display: none !important;
    }

    .card {
        box-shadow: none;
        border: 1px solid #000;
    }

    body {
        background-color: #ffffff;
    }
}

/* ============================================
   Dark Mode Support (Opcional)
   ============================================ */

@media (prefers-color-scheme: dark) {
    /* Descomentar para soporte de dark mode automático
    :root {
        --text-color: #f9fafb;
        --text-secondary: #9ca3af;
        --text-muted: #6b7280;
        --bg-primary: #1f2937;
        --bg-secondary: #111827;
        --bg-tertiary: #374151;
        --border-light: #374151;
        --border-medium: #4b5563;
    }
    */
}