/* ============================================
   SmartFactura Cloud RD - Design System
   ============================================ */

:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: rgba(99, 102, 241, 0.15);
    --bg-dark: #0f172a;
    --bg-sidebar: #1e293b;
    --bg-card: #1e293b;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dark: #334155;
    --success: #10b981;
    --success-light: rgba(16, 185, 129, 0.15);
    --warning: #f59e0b;
    --warning-light: rgba(245, 158, 11, 0.15);
    --error: #ef4444;
    --error-light: rgba(239, 68, 68, 0.15);
    --info: #3b82f6;
    --info-light: rgba(59, 130, 246, 0.15);
    --sidebar-width: 260px;
    --sidebar-collapsed: 70px;
    --header-height: 60px;
    --radius: 0.75rem;
    --radius-lg: 1rem;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Category Accent Colors */
    --clr-principal: #6366f1;
    --clr-ventas: #10b981;
    --clr-gestion: #0ea5e9;
    --clr-rutas: #f59e0b;
    --clr-rrhh: #d946ef;
    --clr-finanzas: #facc15;
    --clr-servicios: #f43f5e;
    --clr-config: #818cf8;
    --clr-soporte: #8b5cf6;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    background: radial-gradient(circle at top right, #1e1b4b, #0f172a);
}

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

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

/* ============================================
   Layout System
   ============================================ */

.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: #0a0f1e;
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.18) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(16, 185, 129, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(239, 68, 68, 0.12) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(245, 158, 11, 0.08) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(139, 92, 246, 0.12) 0px, transparent 50%);
    backdrop-filter: blur(25px);
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    overflow-y: auto;
    overflow-x: hidden;
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.4);
}

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

.sidebar-brand {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 1rem;
    min-height: 80px;
}

.sidebar-brand .brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #818cf8, #6366f1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
}

.sidebar-brand .brand-text {
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: -0.02em;
    background: linear-gradient(to right, #ffffff, #818cf8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    white-space: nowrap;
    filter: drop-shadow(0 0 10px rgba(99, 102, 241, 0.3));
}

.sidebar.collapsed .brand-text,
.sidebar.collapsed .menu-label,
.sidebar.collapsed .nav-text,
.sidebar.collapsed .sidebar-footer span {
    opacity: 0;
    visibility: hidden;
    width: 0;
    padding-left: 0;
    padding-right: 0;
    margin: 0;
    overflow: hidden;
    transition: opacity 0.2s ease, width 0.3s ease;
}

.sidebar-nav {
    padding: 1rem 0;
    flex: 1;
}

.menu-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    padding: 0.9rem 1.25rem;
    font-weight: 800;
    white-space: normal;
    line-height: 1.2;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    cursor: pointer;
    border-radius: 0.6rem;
    margin: 0.6rem 0.85rem 0.25rem;
    position: relative;
    border: 1px solid transparent;
}

.menu-label::after {
    content: '';
    position: absolute;
    left: -1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 0%;
    background: linear-gradient(to bottom, var(--primary), #818cf8);
    box-shadow: 0 0 15px var(--primary);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 0 10px 10px 0;
}

.menu-label.active {
    color: var(--text-main);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.2),
        inset 0 0 20px rgba(99, 102, 241, 0.05);
}

.menu-label.active::after {
    height: 60%;
    left: -0.15rem; /* Adjusted for better visibility */
}

.menu-label.active .nav-icon {
    color: var(--primary);
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.6));
}

.menu-label:hover {
    background: rgba(255, 255, 255, 0.07);
    color: var(--text-main);
}

.menu-label .bx-chevron-down {
    transition: transform 0.5s cubic-bezier(0.68, -0.6, 0.32, 1.6);
    font-size: 1.1rem;
    opacity: 0.4;
}

.menu-label.active .bx-chevron-down {
    transform: rotate(180deg);
    opacity: 1;
    color: var(--primary);
    filter: drop-shadow(0 0 5px var(--primary));
}

/* Advanced Multi-Color Logic */
.menu-label.label-principal.active::after { background: var(--clr-principal); box-shadow: 0 0 15px var(--clr-principal); }
.menu-label.label-ventas.active::after { background: var(--clr-ventas); box-shadow: 0 0 15px var(--clr-ventas); }
.menu-label.label-gestion.active::after { background: var(--clr-gestion); box-shadow: 0 0 15px var(--clr-gestion); }
.menu-label.label-rutas.active::after { background: var(--clr-rutas); box-shadow: 0 0 15px var(--clr-rutas); }
.menu-label.label-rrhh.active::after { background: var(--clr-rrhh); box-shadow: 0 0 15px var(--clr-rrhh); }
.menu-label.label-finanzas.active::after { background: var(--clr-finanzas); box-shadow: 0 0 15px var(--clr-finanzas); }
.menu-label.label-servicios.active::after { background: var(--clr-servicios); box-shadow: 0 0 15px var(--clr-servicios); }
.menu-label.label-config.active::after { background: var(--clr-config); box-shadow: 0 0 15px var(--clr-config); }
.menu-label.label-soporte.active::after { background: var(--clr-soporte); box-shadow: 0 0 15px var(--clr-soporte); }

.menu-label.label-principal.active .nav-icon { color: var(--clr-principal); filter: drop-shadow(0 0 10px var(--clr-principal)); }
.menu-label.label-ventas.active .nav-icon { color: var(--clr-ventas); filter: drop-shadow(0 0 10px var(--clr-ventas)); }
.menu-label.label-gestion.active .nav-icon { color: var(--clr-gestion); filter: drop-shadow(0 0 10px var(--clr-gestion)); }
.menu-label.label-rutas.active .nav-icon { color: var(--clr-rutas); filter: drop-shadow(0 0 10px var(--clr-rutas)); }
.menu-label.label-rrhh.active .nav-icon { color: var(--clr-rrhh); filter: drop-shadow(0 0 10px var(--clr-rrhh)); }
.menu-label.label-finanzas.active .nav-icon { color: var(--clr-finanzas); filter: drop-shadow(0 0 10px var(--clr-finanzas)); }
.menu-label.label-servicios.active .nav-icon { color: var(--clr-servicios); filter: drop-shadow(0 0 10px var(--clr-servicios)); }
.menu-label.label-config.active .nav-icon { color: var(--clr-config); filter: drop-shadow(0 0 10px var(--clr-config)); }
.menu-label.label-soporte.active .nav-icon { color: var(--clr-soporte); filter: drop-shadow(0 0 10px var(--clr-soporte)); }

/* Submenu Active Styles per Category */
.nav-submenu.label-principal .nav-item.active { background: linear-gradient(90deg, rgba(99, 102, 241, 0.2), transparent); box-shadow: inset 3px 0 0 var(--clr-principal); }
.nav-submenu.label-ventas .nav-item.active { background: linear-gradient(90deg, rgba(16, 185, 129, 0.2), transparent); box-shadow: inset 3px 0 0 var(--clr-ventas); }
.nav-submenu.label-gestion .nav-item.active { background: linear-gradient(90deg, rgba(14, 165, 233, 0.2), transparent); box-shadow: inset 3px 0 0 var(--clr-gestion); }
.nav-submenu.label-rutas .nav-item.active { background: linear-gradient(90deg, rgba(245, 158, 11, 0.2), transparent); box-shadow: inset 3px 0 0 var(--clr-rutas); }
.nav-submenu.label-rrhh .nav-item.active { background: linear-gradient(90deg, rgba(217, 70, 239, 0.2), transparent); box-shadow: inset 3px 0 0 var(--clr-rrhh); }
.nav-submenu.label-finanzas .nav-item.active { background: linear-gradient(90deg, rgba(250, 204, 21, 0.2), transparent); box-shadow: inset 3px 0 0 var(--clr-finanzas); }
.nav-submenu.label-servicios .nav-item.active { background: linear-gradient(90deg, rgba(244, 63, 94, 0.2), transparent); box-shadow: inset 3px 0 0 var(--clr-servicios); }
.nav-submenu.label-config .nav-item.active { background: linear-gradient(90deg, rgba(129, 140, 248, 0.2), transparent); box-shadow: inset 3px 0 0 var(--clr-config); }
.nav-submenu.label-soporte .nav-item.active { background: linear-gradient(90deg, rgba(139, 92, 246, 0.2), transparent); box-shadow: inset 3px 0 0 var(--clr-soporte); }

.nav-submenu .nav-item.active .nav-icon { color: inherit; filter: drop-shadow(0 0 5px currentColor); }

.sidebar.collapsed .menu-label .bx-chevron-down,
.sidebar.collapsed .menu-label span:not(.nav-icon) {
    display: none;
}

.sidebar.collapsed .menu-label {
    justify-content: center;
    padding: 0.85rem 0;
    margin: 0.5rem 0.5rem;
}

.sidebar.collapsed .menu-label .nav-icon {
    margin: 0;
    font-size: 1.2rem;
}

.sidebar.collapsed .nav-submenu {
    display: none !important;
}

.sidebar.collapsed .sidebar-brand span,
.sidebar.collapsed .sidebar-footer span {
    display: none;
}

.sidebar.collapsed .sidebar-brand,
.sidebar.collapsed .sidebar-footer {
    justify-content: center;
    padding: 1rem 0;
}

.nav-submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.5s ease;
    opacity: 0;
    margin: 0 0.85rem;
}

.menu-label.active + .nav-submenu {
    max-height: 1500px;
    opacity: 1;
    margin-bottom: 1rem;
}


.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.8rem 1.25rem;
    color: var(--text-muted);
    border-radius: 0.6rem;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    margin-bottom: 0.25rem;
    font-size: 0.92rem;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.nav-submenu .nav-item {
    padding-left: 1.5rem;
    font-size: 0.9rem;
    border-left: 1px solid rgba(255, 255, 255, 0.03);
    margin-left: 0.6rem;
    border-radius: 0 0.6rem 0.6rem 0;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-main);
    transform: translateX(6px);
}

.nav-item.active {
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.15), transparent);
    color: var(--text-main);
    font-weight: 700;
    box-shadow: inset 3px 0 0 var(--primary);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 40%;
    background: var(--primary);
    box-shadow: 0 0 10px var(--primary);
}

.nav-item .nav-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    flex-shrink: 0;
    font-size: 1.2rem;
    transition: var(--transition);
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 0.7rem 0;
}

.sidebar.collapsed .nav-item .nav-icon {
    margin: 0;
}

.nav-item .nav-badge {
    margin-left: auto;
    background: var(--error);
    color: white;
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 1rem;
    font-weight: 600;
    transition: var(--transition);
}

.sidebar.collapsed .nav-badge {
    position: absolute;
    top: 5px;
    right: 15px;
    padding: 2px 5px;
    font-size: 0.6rem;
}

.sidebar-footer {
    padding: 1.25rem;
    background: rgba(255, 255, 255, 0.04);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-top: auto;
    backdrop-filter: blur(10px);
}

.sidebar-footer .user-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), #818cf8);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.95rem;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.sidebar.collapsed+.main-content,
.sidebar.collapsed~.main-content {
    margin-left: var(--sidebar-collapsed);
}

.top-header {
    height: var(--header-height);
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 50;
}

.top-header .toggle-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: var(--transition);
}

.top-header .toggle-btn:hover {
    background: var(--primary-light);
    color: var(--primary);
    transform: rotate(90deg);
}

.top-header .header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.page-content {
    padding: 1.5rem;
    flex: 1;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

/* ============================================
   Cards
   ============================================ */

.card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: var(--transition);
}

.card:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
}

.stat-card {
    position: relative;
    overflow: hidden;
}

.stat-card .stat-icon {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2.5rem;
    opacity: 0.1;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 800;
    margin: 0.5rem 0;
    line-height: 1.2;
}

.stat-card .stat-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
}

.stat-card .stat-change {
    font-size: 0.8rem;
    margin-top: 0.5rem;
    font-weight: 600;
}

.stat-card .stat-change.up {
    color: var(--success);
}

.stat-card .stat-change.down {
    color: var(--error);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

/* ============================================
   Tables
   ============================================ */

.table-container {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--glass-border);
}

.table-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

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

thead th {
    text-align: left;
    padding: 0.85rem 1rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.15);
    white-space: nowrap;
}

tbody td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--glass-border);
    font-size: 0.9rem;
    vertical-align: middle;
}

tbody tr:hover {
    background: var(--glass-bg);
}

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

.table-empty {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.4;
}

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

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

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover {
    background: #059669;
    color: white;
}

.btn-warning {
    background: var(--warning);
    color: #1e293b;
}

.btn-warning:hover {
    background: #d97706;
}

.btn-danger {
    background: var(--error);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
    color: white;
}

.btn-secondary {
    background: #334155;
    color: var(--text-main);
}

.btn-secondary:hover {
    background: #475569;
    color: white;
}

.btn-info {
    background: var(--info);
    color: white;
}

.btn-info:hover {
    background: #2563eb;
    color: white;
}

.btn-whatsapp {
    background: #25d366;
    color: white;
}

.btn-whatsapp:hover {
    background: #128c7e;
    color: white;
}

.btn-sm {
    padding: 0.35rem 0.7rem;
    font-size: 0.78rem;
}

.btn-lg {
    padding: 0.8rem 1.5rem;
    font-size: 0.95rem;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-main);
}

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

.btn-icon {
    padding: 0.5rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 0.4rem;
    font-size: 1.1rem;
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--glass-bg);
    color: var(--text-main);
}

.btn-icon.danger:hover {
    color: var(--error);
}

.btn-icon.success:hover {
    color: var(--success);
}

.btn-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ============================================
   Forms
   ============================================ */

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label,
label {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 0.4rem;
    color: var(--text-muted);
    font-weight: 500;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="tel"],
input[type="search"],
select,
textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--glass-border);
    padding: 0.7rem 0.85rem;
    border-radius: var(--radius);
    color: var(--text-main);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
    font-family: 'Inter', sans-serif;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

input::placeholder,
textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}

select option {
    background: var(--bg-card);
    color: var(--text-main);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-grid .full-width {
    grid-column: span 2;
}

.form-section-title {
    grid-column: span 2;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 0.5rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   Badges
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.badge-primary {
    background: var(--primary-light);
    color: var(--primary);
}

.badge-success {
    background: var(--success-light);
    color: var(--success);
}

.badge-warning {
    background: var(--warning-light);
    color: var(--warning);
}

.badge-danger {
    background: var(--error-light);
    color: var(--error);
}

.badge-info {
    background: var(--info-light);
    color: var(--info);
}

.badge-solid-primary {
    background: var(--primary);
    color: white;
}

.badge-solid-success {
    background: var(--success);
    color: white;
}

.badge-solid-warning {
    background: var(--warning);
    color: #1e293b;
}

.badge-solid-danger {
    background: var(--error);
    color: white;
}

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

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.82);
    backdrop-filter: blur(12px);
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 1rem;
}

.modal.active {
    display: flex;
    animation: fadeIn 0.2s ease;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--error);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* ============================================
   Search Dropdown
   ============================================ */

.search-wrapper {
    position: relative;
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    max-height: 250px;
    overflow-y: auto;
    z-index: 200;
    margin-top: 4px;
    box-shadow: var(--shadow-lg);
    display: none;
}

.search-results.active {
    display: block;
}

.search-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
    font-size: 0.9rem;
}

/* ============================================
   Senior Hardening: New UI Components
   ============================================ */

/* ITBIS Switch Modern */
.itbis-control {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(0, 0, 0, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    border: 1px solid var(--glass-border);
}

.itbis-control span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.itbis-control.active span {
    color: var(--success);
}

.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 22px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #334155;
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked+.slider {
    background-color: var(--success);
}

input:checked+.slider:before {
    transform: translateX(22px);
}

/* Search Addon Lupa */
.search-input-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.btn-search-lupa {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--primary);
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
}

.btn-search-lupa:hover {
    background: var(--primary-light);
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* Advanced Table for Modals */
.advanced-search-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.advanced-search-table th {
    background: rgba(0, 0, 0, 0.3);
    padding: 0.75rem;
    font-size: 0.8rem;
    text-align: left;
    color: var(--text-muted);
}

.advanced-search-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--glass-border);
    font-size: 0.85rem;
}

.advanced-search-table tr:hover {
    background: var(--glass-bg);
    cursor: pointer;
}

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

.search-item:last-child {
    border-bottom: none;
}

.search-item small {
    color: var(--text-muted);
}

/* ============================================
   Toast Notifications
   ============================================ */

.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    min-width: 300px;
    max-width: 450px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease;
    font-size: 0.9rem;
}

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--error);
}

.toast.warning {
    border-left: 4px solid var(--warning);
}

.toast.info {
    border-left: 4px solid var(--info);
}

.toast-close {
    margin-left: auto;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
}

/* ============================================
   Login Page
   ============================================ */

.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 1rem;
}

.login-container {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 2.5rem;
    border-radius: 1.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(to right, #818cf8, #c084fc);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.btn-login {
    width: 100%;
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.8rem;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 1rem;
    font-size: 0.95rem;
}

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

.error-message {
    background: var(--error-light);
    color: var(--error);
    padding: 0.75rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(239, 68, 68, 0.2);
    text-align: center;
}

/* ============================================
   Invoice / Billing
   ============================================ */

.billing-container {
    max-width: 1200px;
    margin: 0 auto;
}

.grid-inputs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

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

/* Price Type Select Styling */
.price-type-select {
    padding: 0.3rem 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--glass-bg);
    color: var(--text-main);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
}

.price-type-select:hover {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

.price-type-select option {
    background: white;
    color: var(--text-main);
}

.invoice-table th {
    text-align: left;
    color: var(--text-muted);
    padding: 0.85rem 1rem;
    border-bottom: 2px solid var(--glass-border);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.invoice-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.totals-section {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    margin-top: 1.5rem;
    gap: 0.4rem;
    font-size: 0.95rem;
}

.totals-section .total-row {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary);
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 2px solid var(--glass-border);
}

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

.invoice-box {
    max-width: 800px;
    margin: auto;
    padding: 40px;
    background: #fff;
    border-radius: 8px;
    box-shadow: var(--shadow);
    color: #333;
    font-size: 13px;
}

@media print {
    body {
        background: #fff !important;
        padding: 0;
    }

    .sidebar,
    .top-header,
    .no-print {
        display: none !important;
    }

    .main-content {
        margin-left: 0 !important;
    }

    .invoice-box {
        box-shadow: none;
        border: none;
    }
}

/* ============================================
   Filter Bar
   ============================================ */

.filter-bar {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.5rem;
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.filter-bar input,
.filter-bar select {
    width: auto;
    min-width: 150px;
}

/* ============================================
   Expired/Blocked Page
   ============================================ */

.expired-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem;
}

.expired-card {
    background: var(--bg-card);
    border: 1px solid var(--error);
    border-radius: var(--radius-lg);
    padding: 3rem;
    max-width: 500px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.expired-card .expired-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* ============================================
   Progress Bar
   ============================================ */

.progress-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 0.5rem;
}

.progress-bar .progress-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.5s ease;
}

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

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0 !important;
    }

    .grid-inputs {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-grid .full-width,
    .form-section-title {
        grid-column: span 1;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .table-container {
        overflow-x: auto;
    }

    .modal-content {
        max-width: 95%;
    }

    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-bar input,
    .filter-bar select {
        width: 100%;
    }
}

/* Overlay for mobile sidebar */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
}

.sidebar-overlay.active {
    display: block;
}

/* ============================================
   Utility Classes
   ============================================ */

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

.text-success {
    color: var(--success);
}

.text-danger {
    color: var(--error);
}

.text-warning {
    color: var(--warning);
}

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

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-sm {
    font-size: 0.85rem;
}

.text-xs {
    font-size: 0.75rem;
}

.text-lg {
    font-size: 1.15rem;
}

.font-bold {
    font-weight: 700;
}

.flex {
    display: flex;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.gap-sm {
    gap: 0.5rem;
}

.gap-md {
    gap: 1rem;
}

.gap-lg {
    gap: 1.5rem;
}

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-3 {
    margin-top: 1.5rem;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

.w-full {
    width: 100%;
}

.hidden {
    display: none !important;
}

/* ============================================
   Toggle Group (Contado/Crédito)
   ============================================ */

.toggle-group {
    display: inline-flex;
    background: rgba(0, 0, 0, 0.25);
    border-radius: var(--radius);
    border: 1px solid var(--glass-border);
    overflow: hidden;
}

.toggle-group .toggle-btn {
    padding: 0.5rem 1.2rem;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.toggle-group .toggle-btn.active {
    background: var(--primary);
    color: white;
}

.toggle-group .toggle-btn:not(.active):hover {
    background: var(--glass-bg);
    color: var(--text-main);
}

/* Status Filters */
.status-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.btn-filter {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-filter:hover {
    border-color: var(--primary);
    color: var(--text-main);
}

.btn-filter.active {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
    font-weight: 600;
}

/* Badge Secondary */
.badge-secondary {
    background: rgba(100, 116, 139, 0.2);
    color: #94a3b8;
}

/* Status Select */
.status-select {
    background: rgba(0, 0, 0, 0.25) !important;
    border: 1px solid var(--glass-border) !important;
    color: var(--text-main) !important;
    border-radius: 0.4rem !important;
    cursor: pointer;
}

/* Text Utilities */
.text-sm {
    font-size: 0.8rem;
}

.text-success {
    color: var(--success);
}

.text-danger {
    color: var(--error);
}

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

.danger {
    color: var(--error);
}

/* Premium Icons Styles (3D Gold & Blue) */
.premium-icon {
    background: linear-gradient(135deg, #fbbf24, #f59e0b, #d97706);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 4px rgba(245, 158, 11, 0.4));
    display: inline-block;
}

.premium-icon-blue {
    background: linear-gradient(135deg, #60a5fa, #3b82f6, #2563eb);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 4px rgba(59, 130, 246, 0.4));
    display: inline-block;
}

.nav-icon i {
    font-size: 1.25rem;
    background: linear-gradient(135deg, #cbd5e1, #94a3b8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: var(--transition);
}

.nav-item:hover .nav-icon i,
.nav-item.active .nav-icon i {
    background: linear-gradient(135deg, #fcd34d, #f59e0b);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 6px rgba(245, 158, 11, 0.5));
    transform: scale(1.1);
}

.stat-icon i {
    font-size: 3rem;
    background: linear-gradient(135deg, #fcd34d, #f59e0b);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.9 !important;
    filter: drop-shadow(0 4px 8px rgba(245, 158, 11, 0.3));
}

.stat-card:nth-child(even) .stat-icon i,
.stat-icon-blue i {
    background: linear-gradient(135deg, #93c5fd, #3b82f6);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 4px 8px rgba(59, 130, 246, 0.3));
}

/* ============================================
   Notification Center (Senior Design)
   ============================================ */

.notification-container {
    position: relative;
}

.notification-bell {
    position: relative;
    font-size: 1.4rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.notification-bell:hover {
    background: var(--glass-bg);
    color: var(--primary);
    transform: scale(1.1);
}

.notification-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    background: var(--error);
    color: white;
    font-size: 0.65rem;
    min-width: 16px;
    height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    border: 2px solid var(--bg-sidebar);
    animation: pulse 2s infinite;
}

.notification-dropdown {
    position: absolute;
    top: calc(100% + 15px);
    right: 0;
    width: 320px;
    background: var(--bg-sidebar);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    z-index: 1000;
    overflow: hidden;
    backdrop-filter: blur(10px);
    animation: slideUp 0.3s ease;
}

.notification-dropdown.active {
    display: flex;
}

.notification-header {
    padding: 1rem;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.notification-header h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-main);
}

.notification-list {
    max-height: 350px;
    overflow-y: auto;
}

.notification-item {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--glass-border);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    animation: notifAppear 0.4s ease-out forwards;
}

.notification-item:hover {
    background: var(--glass-bg);
    transform: translateX(5px);
}

.notification-item.unread {
    background: rgba(99, 102, 241, 0.05);
}

.notification-item.unread::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary);
}

.notif-title {
    font-size: 0.75rem; /* Reducido para un look más elegante */
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.15rem;
}

.notif-msg {
    font-size: 0.7rem; /* Reducido según solicitud */
    color: var(--text-muted);
    line-height: 1.3;
    margin-bottom: 0.25rem;
}

.notif-time {
    font-size: 0.62rem;
    color: var(--text-muted);
    opacity: 0.6;
}

.notification-footer {
    padding: 0.75rem;
    text-align: center;
    border-top: 1px solid var(--glass-border);
}

.notification-footer a {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
}

/* Animaciones personalizadas */
@keyframes notifAppear {
    0% {
        opacity: 1;
        transform: translateX(15px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================================
   Notification Page Enhancements
   ============================================ */
.notif-row {
    animation: rowAppear 0.5s ease-out forwards;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.notif-row.unread-row {
    border-left: 4px solid var(--primary);
    animation: rowAppear 0.5s ease-out forwards, notifPulse 3s infinite ease-in-out;
}

.notif-row:hover {
    background: rgba(99, 102, 241, 0.12) !important;
    transform: translateX(12px);
    box-shadow: -5px 0 15px rgba(99, 102, 241, 0.1);
}

@keyframes notifPulse {
    0%, 100% { background: rgba(99, 102, 241, 0.05); }
    50% { background: rgba(99, 102, 241, 0.1); }
}

.notif-page-title {
    font-size: 0.78rem !important;
    font-weight: 700;
    color: var(--text-main);
}

.notif-page-msg {
    font-size: 0.7rem !important;
    color: var(--text-muted);
}

.notif-page-date {
    font-size: 0.65rem !important;
    color: var(--text-muted);
}

@keyframes rowAppear {
    from {
        opacity: 1;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}