/* ==========================================================================
   Modern Enterprise Design System for Ticket Support System
   ========================================================================== */

:root {
    --font-primary: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-heading: 'Plus Jakarta Sans', var(--font-primary);

    --color-bg: #f8fafc;
    --color-card-bg: #ffffff;
    --color-text-main: #0f172a;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;

    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;

    --secondary: #0ea5e9;
    --secondary-hover: #0284c7;

    --success: #10b981;
    --success-bg: #d1fae5;
    --success-text: #065f46;

    --warning: #f59e0b;
    --warning-bg: #fef3c7;
    --warning-text: #92400e;

    --danger: #ef4444;
    --danger-bg: #fee2e2;
    --danger-text: #991b1b;

    --dark-nav: #0f172a;
    --dark-nav-surface: #1e293b;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

/* Global Reset & Body */
body {
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    color: var(--color-text-main);
    padding-top: 80px;
    margin: 0;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .page-header h1 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text-main);
}

/* Navbar Upgrade */
.navbar-inverse {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-md);
    padding: 6px 0;
}

.navbar-inverse .navbar-brand {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 20px;
    color: #ffffff !important;
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-inverse .navbar-brand i {
    color: #6366f1;
    font-size: 22px;
}

.navbar-inverse .navbar-nav > li > a {
    color: #94a3b8 !important;
    font-weight: 500;
    font-size: 14px;
    padding: 15px 16px;
    transition: all 0.2s ease;
    border-radius: var(--radius-sm);
}

.navbar-inverse .navbar-nav > li > a:hover,
.navbar-inverse .navbar-nav > li > a:focus {
    color: #ffffff !important;
    background: rgba(255, 255, 255, 0.08);
}

.navbar-inverse .navbar-nav > .active > a,
.navbar-inverse .navbar-nav > .active > a:hover {
    background: var(--primary) !important;
    color: #ffffff !important;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

.dropdown-menu {
    background: var(--dark-nav-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: 8px;
    margin-top: 8px;
}

.dropdown-menu > li > a {
    color: #cbd5e1;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: all 0.15s ease;
}

.dropdown-menu > li > a:hover {
    background: rgba(99, 102, 241, 0.15);
    color: #ffffff;
}

.dropdown-menu .divider {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Page Header & Banners */
.page-header {
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #4338ca 100%);
    margin: 0 0 28px 0;
    padding: 30px 36px;
    border-radius: var(--radius-lg);
    border: none;
    box-shadow: var(--shadow-lg);
    color: #ffffff;
    position: relative;
    overflow: hidden;
}

.page-header h1 {
    color: #ffffff;
    margin: 0 0 8px 0;
    font-size: 28px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-header h1 small {
    color: #a5b4fc;
    font-size: 16px;
    font-weight: 500;
}

.page-header .label-danger {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: #fca5a5;
    font-size: 12px;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-weight: 600;
}

.page-header .text-primary {
    color: #c7d2fe !important;
    font-size: 14px;
}

/* Cards & Panels */
.panel, .well {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-md);
    transition: all 0.25s ease;
    overflow: hidden;
}

.panel:hover {
    box-shadow: var(--shadow-lg);
}

.panel-heading {
    border-bottom: 1px solid var(--color-border) !important;
    padding: 16px 20px;
    font-weight: 700;
    font-size: 16px;
}

.panel-info > .panel-heading {
    background: #f0f9ff;
    color: #0369a1;

}

.panel-danger > .panel-heading {
    background: #fef2f2;
    color: #b91c1c;
}

.panel-primary > .panel-heading {
    background: var(--primary-light);
    color: var(--primary);
}

.panel-success > .panel-heading {
    background: var(--success-bg);
    color: var(--success-text);
}

.panel-body {
    padding: 24px;
}

/* Dashboard Metric Cards */
.stat-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    margin-bottom: 20px;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-card .stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.stat-icon.primary { background: #eef2ff; color: #4f46e5; }
.stat-icon.warning { background: #fef3c7; color: #d97706; }
.stat-icon.info { background: #e0f2fe; color: #0284c7; }
.stat-icon.success { background: #d1fae5; color: #059669; }

.stat-card .stat-details h3 {
    margin: 0;
    font-size: 32px;
    font-weight: 800;
    color: var(--color-text-main);
}

.stat-card .stat-details p {
    margin: 4px 0 0 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Status Badges */
.badge-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 700;
    text-transform: capitalize;
}

.badge-pendiente {
    background-color: var(--warning-bg);
    color: var(--warning-text);
    border: 1px solid #fde68a;
}

.badge-proceso {
    background-color: #e0f2fe;
    color: #0369a1;
    border: 1px solid #bae6fd;
}

.badge-resuelto {
    background-color: var(--success-bg);
    color: var(--success-text);
    border: 1px solid #a7f3d0;
}

/* Form Fields & Controls */
.form-control {
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    padding: 10px 14px;
    height: auto;
    font-size: 14px;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
    outline: none;
}

/* Buttons */
.btn {
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: var(--radius-md);
    padding: 10px 20px;
    font-size: 14px;
    transition: all 0.2s ease;
    border: none;
    box-shadow: var(--shadow-sm);
}

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

.btn-primary {
    background: linear-gradient(135deg, #4f46e5 0%, #4338ca 100%);
    color: #ffffff;
}
.btn-primary:hover { background: #3730a3; }

.btn-info {
    background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
    color: #ffffff;
}

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

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

.btn-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: #ffffff;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
    border-radius: var(--radius-sm);
}

/* Tables */
.table-responsive {
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    background: #ffffff;
    overflow: hidden;
}

.table {
    margin-bottom: 0;
}

.table > thead > tr > th {
    background: #f8fafc;
    color: var(--color-text-muted);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border);
    padding: 14px 18px;
}

.table > tbody > tr > td {
    padding: 14px 18px;
    vertical-align: middle;
    border-top: 1px solid var(--color-border);
    font-size: 14px;
}

.table-hover > tbody > tr:hover {
    background-color: #f1f5f9;
}

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

.modal-header {
    background: var(--dark-nav);
    color: #ffffff;
    padding: 20px 24px;
    border-bottom: none;
}

.modal-header .modal-title {
    color: #ffffff !important;
    font-size: 18px;
}

.modal-header .close {
    color: #ffffff;
    opacity: 0.8;
}

.modal-body {
    padding: 24px;
}

/* Footer */
footer {
    background: var(--dark-nav);
    color: #94a3b8;
    padding: 40px 0 20px 0;
    margin-top: 60px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

footer h3, footer h4 {
    color: #ffffff;
    font-size: 16px;
    margin-bottom: 16px;
}

footer a {
    color: #cbd5e1;
    transition: color 0.2s ease;
}

footer a:hover {
    color: var(--secondary);
    text-decoration: none;
}

footer hr {
    border-color: rgba(255, 255, 255, 0.1);
    margin: 30px 0 20px 0;
}

/* Image Utilities */
.logos_GnuLinux {
    display: block;
    margin: 0 auto;
    max-height: 120px;
    object-fit: contain;
}