/* ============================================================
   SISTEMA MESA DE PARTES — CSS PRINCIPAL
   Diseño institucional moderno con animaciones
   ============================================================ */

/* ─── Google Fonts ─── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ─── Variables CSS ─── */
:root {
    --primary: #1a3a6e;
    --primary-light: #2563eb;
    --primary-dark: #0f2347;
    --secondary: #64748b;
    --accent: #0ea5e9;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #6366f1;
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --gradient-primary: linear-gradient(135deg, #1a3a6e 0%, #2563eb 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --gradient-accent: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
    --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,.1);
    --shadow-lg: 0 10px 30px rgba(0,0,0,.12);
    --shadow-xl: 0 20px 50px rgba(0,0,0,.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', sans-serif;
}

/* ─── Reset & Base ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    color: var(--gray-800);
    background: var(--gray-50);
    line-height: 1.6;
    overflow-x: hidden;
}
a { text-decoration: none; color: var(--primary-light); transition: var(--transition); }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; }

/* ─── LOADER (Pantalla de carga) ─── */
.page-loader {
    position: fixed; inset: 0; z-index: 99999;
    background: var(--gradient-primary);
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    transition: opacity .5s, visibility .5s;
}
.page-loader.hide { opacity: 0; visibility: hidden; }
.loader-spinner {
    width: 50px; height: 50px;
    border: 4px solid rgba(255,255,255,.2);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
.loader-text { color: #fff; margin-top: 18px; font-weight: 600; font-size: 1.1rem; letter-spacing: 1px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── NAVBAR ─── */
.navbar-main {
    background: var(--gradient-primary) !important;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-lg);
    padding: 0;
    position: fixed; top: 0; left: 0; right: 0; z-index: 1050;
    transition: var(--transition);
}
.navbar-main .navbar-brand {
    font-weight: 700; font-size: 1.2rem; color: #fff !important;
    display: flex; align-items: center; gap: 10px;
}
.navbar-main .navbar-brand .brand-icon {
    width: 40px; height: 40px; background: rgba(255,255,255,.15);
    border-radius: var(--radius-sm); display: flex;
    align-items: center; justify-content: center; font-size: 1.3rem;
}
.navbar-main .nav-link {
    color: rgba(255,255,255,.85) !important; font-weight: 500;
    padding: 20px 16px !important; position: relative;
    transition: var(--transition); font-size: .9rem;
}
.navbar-main .nav-link:hover,
.navbar-main .nav-link.active {
    color: #fff !important; background: rgba(255,255,255,.1);
}
.navbar-main .nav-link::after {
    content: ''; position: absolute; bottom: 0; left: 50%;
    width: 0; height: 3px; background: var(--accent);
    transition: var(--transition); transform: translateX(-50%);
    border-radius: 3px 3px 0 0;
}
.navbar-main .nav-link:hover::after,
.navbar-main .nav-link.active::after { width: 60%; }

/* ─── HERO SECTION ─── */
.hero-section {
    background: var(--gradient-primary);
    padding: 140px 0 80px;
    position: relative; overflow: hidden;
    color: #fff; text-align: center;
}
.hero-section::before {
    content: ''; position: absolute; inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-title { font-size: 2.8rem; font-weight: 800; margin-bottom: 12px; }
.hero-subtitle { font-size: 1.1rem; opacity: .85; max-width: 600px; margin: 0 auto 30px; }
.hero-badge {
    display: inline-block; background: rgba(255,255,255,.15);
    padding: 6px 18px; border-radius: 50px; font-size: .85rem;
    backdrop-filter: blur(8px); margin-bottom: 20px;
    border: 1px solid rgba(255,255,255,.2);
}

/* ─── SECTION TITLES ─── */
.section-title {
    font-size: 2rem; font-weight: 700; color: var(--primary);
    margin-bottom: 8px; position: relative;
}
.section-subtitle { color: var(--gray-500); margin-bottom: 40px; }

/* ─── CARDS ─── */
.card-modern {
    background: var(--white); border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg); box-shadow: var(--shadow-sm);
    transition: var(--transition); overflow: hidden;
}
.card-modern:hover {
    transform: translateY(-4px); box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}
.card-modern .card-header-custom {
    background: var(--gradient-primary); color: #fff;
    padding: 20px 24px; font-weight: 600; font-size: 1.1rem;
    display: flex; align-items: center; gap: 10px;
}
.card-modern .card-body { padding: 24px; }

/* ─── STAT CARDS ─── */
.stat-card {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 24px; border: 1px solid var(--gray-200);
    transition: var(--transition); position: relative; overflow: hidden;
}
.stat-card::before {
    content: ''; position: absolute; top: 0; left: 0;
    width: 4px; height: 100%; border-radius: 4px 0 0 4px;
}
.stat-card:hover { transform: translateY(-3px); 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: 1.4rem; color: #fff;
}
.stat-card .stat-number {
    font-size: 2rem; font-weight: 800; line-height: 1.2;
    background: var(--gradient-primary); -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-card .stat-label { color: var(--gray-500); font-size: .85rem; font-weight: 500; }

/* ─── FORM STYLES ─── */
.form-floating > .form-control,
.form-floating > .form-select {
    border: 2px solid var(--gray-200); border-radius: var(--radius-sm);
    transition: var(--transition); font-size: .95rem;
    padding: 1rem .75rem;
}
.form-floating > .form-control:focus,
.form-floating > .form-select:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 4px rgba(37,99,235,.1);
}
.form-floating > label { color: var(--gray-500); }

/* ─── BUTTONS ─── */
.btn-primary-custom {
    background: var(--gradient-primary); color: #fff;
    border: none; border-radius: var(--radius-sm);
    padding: 12px 28px; font-weight: 600;
    transition: var(--transition); position: relative;
    overflow: hidden; font-size: .95rem;
}
.btn-primary-custom:hover {
    transform: translateY(-2px); box-shadow: 0 8px 25px rgba(37,99,235,.35);
    color: #fff;
}
.btn-primary-custom::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(rgba(255,255,255,.15), transparent);
    opacity: 0; transition: var(--transition);
}
.btn-primary-custom:hover::after { opacity: 1; }

.btn-outline-custom {
    border: 2px solid var(--primary-light); color: var(--primary-light);
    border-radius: var(--radius-sm); padding: 10px 24px;
    font-weight: 600; transition: var(--transition); background: transparent;
}
.btn-outline-custom:hover {
    background: var(--primary-light); color: #fff;
    transform: translateY(-2px);
}

.btn-icon {
    width: 38px; height: 38px; border-radius: var(--radius-sm);
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--gray-200); background: var(--white);
    color: var(--gray-600); transition: var(--transition); padding: 0;
}
.btn-icon:hover { background: var(--primary-light); color: #fff; border-color: var(--primary-light); }

/* ─── FILE DROP ZONE ─── */
.drop-zone {
    border: 2px dashed var(--gray-300); border-radius: var(--radius-md);
    padding: 30px; text-align: center; cursor: pointer;
    transition: var(--transition); background: var(--gray-50);
}
.drop-zone:hover, .drop-zone.dragover {
    border-color: var(--primary-light); background: rgba(37,99,235,.04);
}
.drop-zone i { font-size: 2.5rem; color: var(--gray-400); margin-bottom: 10px; }
.drop-zone p { color: var(--gray-500); margin: 0; }
.drop-zone .file-name { color: var(--primary-light); font-weight: 600; margin-top: 8px; }

/* ─── TIMELINE ─── */
.timeline { position: relative; padding-left: 30px; }
.timeline::before {
    content: ''; position: absolute; left: 12px; top: 0;
    width: 3px; height: 100%; background: var(--gray-200); border-radius: 3px;
}
.timeline-item {
    position: relative; padding-bottom: 24px;
    padding-left: 24px; animation: fadeInUp .4s ease-out;
}
.timeline-item::before {
    content: ''; position: absolute; left: -24px; top: 4px;
    width: 14px; height: 14px; border-radius: 50%;
    border: 3px solid var(--primary-light); background: #fff; z-index: 1;
}
.timeline-item.estado-Finalizado::before { border-color: var(--success); background: var(--success); }
.timeline-item.estado-Observado::before { border-color: var(--danger); background: var(--danger); }
.timeline-item.estado-En\ Proceso::before { border-color: var(--warning); background: var(--warning); }
.timeline-date { font-size: .8rem; color: var(--gray-400); font-weight: 500; }
.timeline-title { font-weight: 600; color: var(--gray-800); }
.timeline-text { font-size: .9rem; color: var(--gray-500); }

/* ─── BADGE STATUS ─── */
.badge-status {
    padding: 5px 14px; border-radius: 50px;
    font-size: .78rem; font-weight: 600; letter-spacing: .3px;
    display: inline-flex; align-items: center; gap: 5px;
}

/* ─── TABLE ─── */
.table-modern { border-collapse: separate; border-spacing: 0; width: 100%; }
.table-modern thead th {
    background: var(--gray-50); color: var(--gray-600);
    font-weight: 600; font-size: .8rem; text-transform: uppercase;
    letter-spacing: .5px; padding: 14px 16px;
    border-bottom: 2px solid var(--gray-200);
}
.table-modern tbody td {
    padding: 14px 16px; border-bottom: 1px solid var(--gray-100);
    vertical-align: middle; font-size: .9rem;
}
.table-modern tbody tr { transition: var(--transition); }
.table-modern tbody tr:hover { background: rgba(37,99,235,.03); }

/* ─── ADMIN SIDEBAR ─── */
.admin-sidebar {
    width: 260px; min-height: 100vh; background: var(--gradient-dark);
    position: fixed; left: 0; top: 0; z-index: 1040;
    transition: var(--transition); overflow-y: auto;
}
.admin-sidebar.collapsed { width: 70px; }
.admin-sidebar .sidebar-brand {
    padding: 20px; display: flex; align-items: center; gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.admin-sidebar .sidebar-brand h5 {
    color: #fff; font-weight: 700; margin: 0; font-size: 1rem;
    white-space: nowrap; overflow: hidden;
}
.admin-sidebar .sidebar-brand .brand-logo {
    width: 36px; height: 36px; background: var(--gradient-accent);
    border-radius: var(--radius-sm); display: flex;
    align-items: center; justify-content: center;
    font-size: 1.1rem; color: #fff; flex-shrink: 0;
}
.sidebar-nav { padding: 12px 0; }
.sidebar-nav .nav-item { padding: 2px 10px; }
.sidebar-nav .nav-link {
    color: rgba(255,255,255,.65); padding: 10px 14px;
    border-radius: var(--radius-sm); transition: var(--transition);
    display: flex; align-items: center; gap: 12px;
    font-size: .9rem; font-weight: 500; white-space: nowrap;
}
.sidebar-nav .nav-link:hover { color: #fff; background: rgba(255,255,255,.08); }
.sidebar-nav .nav-link.active { color: #fff; background: rgba(37,99,235,.4); }
.sidebar-nav .nav-link i { font-size: 1.1rem; width: 22px; text-align: center; flex-shrink: 0; }
.sidebar-nav .nav-section {
    color: rgba(255,255,255,.35); font-size: .7rem;
    text-transform: uppercase; letter-spacing: 1px;
    padding: 16px 14px 6px; font-weight: 600;
}
.admin-sidebar.collapsed .nav-link span,
.admin-sidebar.collapsed .nav-section,
.admin-sidebar.collapsed .sidebar-brand h5 { display: none; }

/* ─── ADMIN MAIN CONTENT ─── */
.admin-main {
    margin-left: 260px; padding: 24px;
    min-height: 100vh; transition: var(--transition);
}
.admin-main.expanded { margin-left: 70px; }
.admin-topbar {
    background: var(--white); border-radius: var(--radius-md);
    padding: 16px 24px; margin-bottom: 24px;
    box-shadow: var(--shadow-sm); display: flex;
    align-items: center; justify-content: space-between;
    border: 1px solid var(--gray-200);
}

/* ─── ADMIN LOGIN ─── */
.login-page {
    min-height: 100vh; display: flex;
    align-items: center; justify-content: center;
    background: var(--gradient-primary); position: relative;
}
.login-page::before {
    content: ''; position: absolute; inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.login-card {
    background: var(--white); border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl); width: 100%; max-width: 420px;
    overflow: hidden; position: relative; z-index: 1;
    animation: fadeInUp .6s ease-out;
}
.login-card .login-header {
    background: var(--gradient-primary); padding: 36px;
    text-align: center; color: #fff;
}
.login-card .login-header .login-icon {
    width: 70px; height: 70px; background: rgba(255,255,255,.15);
    border-radius: 50%; margin: 0 auto 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.8rem; backdrop-filter: blur(8px);
}
.login-card .login-body { padding: 36px; }

/* ─── MODAL MODERN ─── */
.modal-modern .modal-content {
    border: none; border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl); overflow: hidden;
}
.modal-modern .modal-header {
    background: var(--gradient-primary); color: #fff;
    padding: 18px 24px; border: none;
}
.modal-modern .modal-header .btn-close { filter: brightness(0) invert(1); }

/* ─── PREMIUM DARK MODE (HIGH CONTRAST) ─── */
body.high-contrast {
    --gray-50: #0f172a; --gray-100: #1e293b; --gray-200: #334155;
    --gray-800: #f8fafc; --white: #1e293b;
    background: #0f172a !important; 
    color: #e2e8f0 !important;
}
body.high-contrast section, body.high-contrast main, body.high-contrast div[style*="background"] { 
    background-color: transparent !important; 
    background-image: none !important; 
}
body.high-contrast .hero-section {
    background: linear-gradient(135deg, #020617 0%, #0f172a 100%) !important;
    border-bottom: 1px solid #1e293b;
}
body.high-contrast .bg-white, body.high-contrast .bg-light { 
    background-color: #0f172a !important; 
}
body.high-contrast .card, body.high-contrast .card-body, body.high-contrast .card-modern, body.high-contrast .accordion-item, body.high-contrast .accordion-body { 
    background-color: #1e293b !important; 
    border-color: #334155 !important; 
    color: #e2e8f0 !important; 
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5) !important;
}
body.high-contrast h1, body.high-contrast h2, body.high-contrast h3, body.high-contrast h4, body.high-contrast h5, body.high-contrast h6 { 
    color: #f8fafc !important; 
    text-shadow: none !important; 
}
body.high-contrast p, body.high-contrast .text-muted {
    color: #94a3b8 !important;
}
body.high-contrast .text-primary { color: #60a5fa !important; }
body.high-contrast .text-dark { color: #e2e8f0 !important; }
body.high-contrast .text-success { color: #34d399 !important; }
body.high-contrast .text-info { color: #38bdf8 !important; }
body.high-contrast .text-warning { color: #fbbf24 !important; }
body.high-contrast .text-danger { color: #f87171 !important; }

body.high-contrast .badge { 
    border: 1px solid #475569 !important; 
    background-color: #1e293b !important; 
    color: #f8fafc !important; 
}
body.high-contrast .list-group-item { 
    background: #1e293b !important; 
    color: #cbd5e1 !important; 
    border-color: #334155 !important; 
}
body.high-contrast .accordion-button {
    background-color: #1e293b !important;
    color: #f8fafc !important;
    border-color: #334155 !important;
}
body.high-contrast .accordion-button:not(.collapsed) {
    background-color: #334155 !important;
}
body.high-contrast .accordion-button::after { filter: invert(1) brightness(2); }

body.high-contrast .table-modern thead th {
    background: #1e293b !important;
    color: #94a3b8 !important;
    border-bottom: 2px solid #334155 !important;
}
body.high-contrast .table-modern tbody td {
    border-bottom: 1px solid #334155 !important;
    color: #cbd5e1 !important;
}
body.high-contrast .form-control, body.high-contrast .form-select {
    background-color: #0f172a !important;
    border-color: #334155 !important;
    color: #f8fafc !important;
}
body.high-contrast .form-control:focus, body.high-contrast .form-select:focus {
    border-color: #60a5fa !important;
    box-shadow: 0 0 0 0.25rem rgba(96, 165, 250, 0.25) !important;
}
body.high-contrast .modal-content {
    background-color: #1e293b !important;
    border-color: #334155 !important;
}
body.high-contrast .modal-header {
    border-bottom: 1px solid #334155 !important;
}
body.high-contrast .drop-zone {
    background: #0f172a !important;
    border-color: #475569 !important;
}
body.high-contrast .stat-card {
    background: #1e293b !important;
    border-color: #334155 !important;
}
body.high-contrast .admin-topbar {
    background: #1e293b !important;
    border-color: #334155 !important;
}

body.large-text { font-size: 1.15rem !important; }
body.large-text h1 { font-size: 2.8rem !important; }
body.large-text h2 { font-size: 2.2rem !important; }
body.large-text .form-control,
body.large-text .form-select { font-size: 1.1rem !important; }

/* ─── ACCESSIBILITY TOOLBAR ─── */
.accessibility-toolbar {
    position: fixed; bottom: 24px; right: 24px; z-index: 9999;
    display: flex; flex-direction: column; gap: 8px;
}
.accessibility-toolbar .acc-btn {
    width: 48px; height: 48px; border-radius: 50%;
    border: 2px solid var(--primary-light); background: var(--white);
    color: var(--primary-light); display: flex;
    align-items: center; justify-content: center;
    font-size: 1.2rem; cursor: pointer; transition: var(--transition);
    box-shadow: var(--shadow-md);
}
.accessibility-toolbar .acc-btn:hover {
    background: var(--primary-light); color: #fff;
    transform: scale(1.1);
}
.accessibility-toolbar .acc-btn.active {
    background: var(--primary-light); color: #fff;
}

/* ─── FOOTER ─── */
.footer-main {
    background: var(--gradient-dark); color: rgba(255,255,255,.6);
    padding: 40px 0 20px; margin-top: 60px;
}
.footer-main h6 { color: #fff; font-weight: 600; margin-bottom: 16px; }
.footer-main a { color: rgba(255,255,255,.6); transition: var(--transition); }
.footer-main a:hover { color: var(--accent); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.1);
    padding-top: 20px; margin-top: 20px; text-align: center; font-size: .85rem;
}

/* ─── ANIMATIONS ─── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes pulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.05); } }
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-fade-in { animation: fadeInUp .5s ease-out; }
.animate-fade-left { animation: fadeInLeft .5s ease-out; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }

/* ─── Mini Loader ─── */
.mini-loader {
    display: inline-block; width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,.3);
    border-top-color: #fff; border-radius: 50%;
    animation: spin .6s linear infinite; vertical-align: middle;
}
.mini-loader.dark {
    border-color: rgba(0,0,0,.15);
    border-top-color: var(--primary-light);
}

/* ─── Pagination ─── */
.pagination-modern .page-link {
    border: 1px solid var(--gray-200); color: var(--gray-600);
    border-radius: var(--radius-sm) !important; margin: 0 3px;
    font-weight: 500; transition: var(--transition); padding: 8px 14px;
}
.pagination-modern .page-link:hover { background: var(--primary-light); color: #fff; border-color: var(--primary-light); }
.pagination-modern .page-item.active .page-link {
    background: var(--gradient-primary); border-color: transparent; color: #fff;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 991px) {
    .hero-title { font-size: 2rem; }
    .admin-sidebar { transform: translateX(-100%); }
    .admin-sidebar.show { transform: translateX(0); }
    .admin-main { margin-left: 0 !important; }
}
@media (max-width: 575px) {
    .hero-section { padding: 120px 0 50px; }
    .hero-title { font-size: 1.5rem; }
    .card-modern .card-body { padding: 16px; }
    .stat-card { padding: 16px; }
    .stat-card .stat-number { font-size: 1.5rem; }
}

/* ─── Scrollbar custom ─── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); }