/* ============================================================
   Sistema de Gestión Distec - Estilos principales
   ============================================================ */

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

/* Variables CSS */
:root {
    --primary: #1e40af;
    --primary-light: #3b82f6;
    --primary-dark: #1e3a8a;
    --primary-bg: #eff6ff;
    --secondary: #0f766e;
    --secondary-light: #14b8a6;
    --accent: #f59e0b;
    --accent-light: #fbbf24;
    --danger: #dc2626;
    --danger-light: #fecaca;
    --success: #16a34a;
    --success-light: #bbf7d0;
    --warning: #d97706;
    --warning-light: #fef3c7;
    --info: #0284c7;
    --info-light: #e0f2fe;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --sidebar-width: 260px;
    --header-height: 60px;
    --radius: 8px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --transition: all 0.2s ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.6;
    min-height: 100vh;
}

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

/* ============================================================
   LOGIN PAGE
   ============================================================ */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--secondary) 100%);
    padding: 20px;
}

.login-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    padding: 40px;
    text-align: center;
}

.login-card .logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
    background: var(--primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 32px;
    font-weight: 700;
}

.login-card h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.login-card .subtitle {
    color: var(--gray-500);
    font-size: 0.9rem;
    margin-bottom: 28px;
}

/* ============================================================
   LAYOUT: SIDEBAR + MAIN
   ============================================================ */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--gray-900);
    color: #fff;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.sidebar-brand {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-brand .brand-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}

.sidebar-brand .brand-text {
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.2;
}

.sidebar-brand .brand-text small {
    font-size: 0.7rem;
    color: var(--gray-400);
    font-weight: 400;
    display: block;
}

.sidebar-nav {
    padding: 12px 0;
    flex: 1;
}

.sidebar-nav .nav-section {
    padding: 8px 20px 4px;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--gray-500);
    font-weight: 600;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--gray-300);
    font-size: 0.9rem;
    font-weight: 400;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover {
    background: rgba(255,255,255,0.05);
    color: #fff;
}

.sidebar-nav a.active {
    background: rgba(59,130,246,0.15);
    color: var(--primary-light);
    border-left-color: var(--primary-light);
    font-weight: 500;
}

.sidebar-nav a .nav-icon {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

.sidebar-user {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-user .user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.sidebar-user .user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user .user-info .user-name {
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user .user-info .user-role {
    font-size: 0.7rem;
    color: var(--gray-400);
    text-transform: capitalize;
}

.sidebar-user .logout-btn {
    color: var(--gray-400);
    font-size: 1.1rem;
    padding: 4px;
    transition: var(--transition);
}
.sidebar-user .logout-btn:hover {
    color: var(--danger);
}

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

/* Top header */
.top-header {
    height: var(--header-height);
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.top-header .page-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--gray-900);
}

.top-header .header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--gray-700);
    cursor: pointer;
    padding: 4px;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

/* Close button inside sidebar for mobile */
.sidebar-close {
    display: none;
    background: none;
    border: none;
    color: var(--gray-400);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 8px;
    margin-left: auto;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}
.sidebar-close:hover {
    color: #fff;
}

/* Page content */
.page-content {
    flex: 1;
    padding: 24px;
}

/* ============================================================
   COMPONENTS
   ============================================================ */

/* Cards */
.card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.card-header h2, .card-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--gray-100);
    background: var(--gray-50);
}

/* Stat cards */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: flex-start;
    gap: 14px;
    transition: var(--transition);
}

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

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.stat-card .stat-icon.blue { background: var(--primary-bg); color: var(--primary); }
.stat-card .stat-icon.green { background: var(--success-light); color: var(--success); }
.stat-card .stat-icon.red { background: var(--danger-light); color: var(--danger); }
.stat-card .stat-icon.yellow { background: var(--warning-light); color: var(--warning); }
.stat-card .stat-icon.teal { background: #ccfbf1; color: var(--secondary); }
.stat-card .stat-icon.purple { background: #ede9fe; color: #7c3aed; }

.stat-card .stat-info h4 {
    font-size: 0.78rem;
    color: var(--gray-500);
    font-weight: 500;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card .stat-info .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}

.stat-card .stat-info .stat-sub {
    font-size: 0.78rem;
    color: var(--gray-500);
    margin-top: 2px;
}

/* Forms */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-group label .required {
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-size: 0.9rem;
    font-family: inherit;
    color: var(--gray-800);
    background: #fff;
    transition: var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.form-control::placeholder {
    color: var(--gray-400);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-check input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 18px;
    border: none;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.4;
}

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

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

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

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #15803d; color: #fff; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; color: #fff; }

.btn-warning { background: var(--warning); color: #fff; }
.btn-warning:hover { background: #b45309; color: #fff; }

.btn-secondary { background: var(--gray-200); color: var(--gray-700); }
.btn-secondary:hover { background: var(--gray-300); color: var(--gray-800); }

.btn-outline {
    background: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}
.btn-outline:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

.btn-sm {
    padding: 5px 12px;
    font-size: 0.78rem;
}

.btn-lg {
    padding: 12px 28px;
    font-size: 1rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

table.data-table thead th {
    background: var(--gray-50);
    padding: 10px 14px;
    text-align: left;
    font-weight: 600;
    color: var(--gray-600);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

table.data-table tbody td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
}

table.data-table tbody tr:hover {
    background: var(--gray-50);
}

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

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-success { background: var(--success-light); color: var(--success); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-info { background: var(--info-light); color: var(--info); }
.badge-secondary { background: var(--gray-200); color: var(--gray-600); }

/* Parpadeo para corte */
@keyframes blink-corte {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

@keyframes parpadeo {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.estado-corte {
    animation: blink-corte 1s ease-in-out infinite;
    color: var(--danger) !important;
    font-weight: 700;
}

.badge-corte {
    animation: blink-corte 1s ease-in-out infinite;
    background: var(--danger);
    color: #fff;
}

/* Alerts / Flash messages */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    gap: 8px;
    border-left: 4px solid;
}

.alert-success { background: var(--success-light); border-color: var(--success); color: #14532d; }
.alert-danger { background: var(--danger-light); border-color: var(--danger); color: #7f1d1d; }
.alert-warning { background: var(--warning-light); border-color: var(--warning); color: #78350f; }
.alert-info { background: var(--info-light); border-color: var(--info); color: #0c4a6e; }

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
    justify-content: center;
    margin-top: 16px;
}

.pagination a, .pagination span {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    border: 1px solid var(--gray-200);
    color: var(--gray-600);
    transition: var(--transition);
}

.pagination a:hover {
    background: var(--primary-bg);
    border-color: var(--primary-light);
    color: var(--primary);
}

.pagination .active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* Search bar */
.search-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.search-bar .form-control {
    flex: 1;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: #fff;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 1.05rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.3rem;
    color: var(--gray-400);
    cursor: pointer;
    padding: 4px;
}
.modal-close:hover { color: var(--gray-700); }

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* WhatsApp / Telegram links */
.link-wa {
    color: #25d366;
    font-weight: 500;
}
.link-wa:hover { color: #128c7e; }

.link-tg {
    color: #0088cc;
    font-weight: 500;
}
.link-tg:hover { color: #006699; }

.link-maps {
    color: var(--danger);
    font-weight: 500;
}
.link-maps:hover { color: #b91c1c; }

.link-ip {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82rem;
    color: var(--secondary);
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 20px;
    gap: 0;
}

.tab-btn {
    padding: 10px 20px;
    background: none;
    border: none;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-500);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--gray-700);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Utility classes */
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-muted { color: var(--gray-500); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }
.font-mono { font-family: 'JetBrains Mono', monospace; }
.font-bold { font-weight: 700; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.w-100 { width: 100%; }

/* Notification bell */
.notif-bell {
    position: relative;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--gray-500);
    padding: 6px;
    border-radius: 50%;
    transition: var(--transition);
}

.notif-bell:hover {
    background: var(--gray-100);
    color: var(--gray-700);
}

.notif-bell .notif-count {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--danger);
    color: #fff;
    font-size: 0.6rem;
    font-weight: 700;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Sidebar overlay for mobile */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        z-index: 9999;
        box-shadow: none;
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: var(--sidebar-width);
    }
    .sidebar.open {
        transform: translateX(0) !important;
        box-shadow: 4px 0 20px rgba(0,0,0,0.3);
    }
    .main-content {
        margin-left: 0 !important;
    }
    .menu-toggle {
        display: flex !important;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border-radius: 8px;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
    .menu-toggle:active {
        background: var(--gray-100);
    }
    .sidebar-close {
        display: block;
    }
    .stat-grid {
        grid-template-columns: 1fr 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .page-content {
        padding: 16px;
    }
    .top-header {
        padding: 0 12px;
    }
    .top-header .page-title {
        font-size: 1rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 200px;
    }
    .card-body {
        padding: 14px;
    }
    .card-header {
        padding: 12px 14px;
        flex-wrap: wrap;
        gap: 8px;
    }
    table.data-table {
        font-size: 0.75rem;
    }
    table.data-table thead th,
    table.data-table tbody td {
        padding: 8px 8px;
    }
    .search-bar {
        flex-wrap: wrap;
    }
    .search-bar .form-control {
        min-width: 0;
    }
    /* Sidebar nav links bigger touch targets on mobile */
    .sidebar-nav a {
        padding: 13px 20px;
        font-size: 0.95rem;
    }
    .sidebar-nav .nav-section {
        padding: 12px 20px 6px;
    }
    /* Close sidebar when clicking a nav link on mobile */
    .sidebar-user {
        padding: 16px 20px;
    }
    .d-flex {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .stat-grid {
        grid-template-columns: 1fr;
    }
    .login-card {
        padding: 24px;
    }
    .btn {
        padding: 8px 14px;
        font-size: 0.82rem;
    }
    .top-header .page-title {
        max-width: 150px;
        font-size: 0.9rem;
    }
    .card-header h2, .card-header h3 {
        font-size: 0.9rem;
    }
    /* Grid de detalle cliente en 1 columna */
    div[style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
    }
}

/* Print styles */
@media print {
    .sidebar, .top-header, .menu-toggle, .btn, .search-bar {
        display: none !important;
    }
    .main-content {
        margin-left: 0 !important;
    }
    .page-content {
        padding: 0 !important;
    }
}