/* ============================================
   Sistema de Asistencias - Admin Panel CSS
   ============================================ */

:root {
    --bg-primary: #0f1117;
    --bg-secondary: #161822;
    --bg-card: #1c1e2e;
    --bg-hover: #252840;
    --border: #2a2d42;
    --text-primary: #e2e8f0;
    --text-secondary: #8892a8;
    --text-muted: #5a6178;
    --accent: #6c9fff;
    --accent-hover: #5889e6;
    --green: #48d9a4;
    --green-bg: rgba(72, 217, 164, 0.1);
    --red: #f56b6b;
    --red-bg: rgba(245, 107, 107, 0.1);
    --yellow: #f0c24a;
    --yellow-bg: rgba(240, 194, 74, 0.1);
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 2px 12px rgba(0,0,0,0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    display: flex;
    min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
    width: 240px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 1.25rem;
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--accent);
    font-weight: 700;
    font-size: 1.1rem;
}

.nav-menu {
    list-style: none;
    padding: 0.75rem;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.7rem 0.9rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.15s;
    margin-bottom: 2px;
}

.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active { background: var(--accent); color: #fff; }
.nav-item.active svg { stroke: #fff; }

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--border);
}

.btn-logout {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    width: 100%;
    transition: color 0.15s;
}
.btn-logout:hover { color: var(--red); }

/* ---- Main Content ---- */
.main-content {
    margin-left: 240px;
    flex: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
}

.top-bar-info { display: flex; align-items: center; gap: 0.75rem; }
.greeting { color: var(--text-secondary); font-size: 0.9rem; }
.admin-name { font-weight: 600; }
.top-bar-date { color: var(--text-secondary); font-size: 0.85rem; }

/* ---- Sections ---- */
.content-section {
    display: none;
    padding: 1.5rem;
    flex: 1;
}
.content-section.active { display: block; }

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}
.section-header h2 { font-size: 1.3rem; font-weight: 600; }

.section-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
    line-height: 1.5;
}
.section-desc a { color: var(--accent); }

/* ---- Stats Grid ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-card.present .stat-number { color: var(--green); }
.stat-card.late .stat-number { color: var(--yellow); }
.stat-card.absent .stat-number { color: var(--red); }
.stat-card.total .stat-number { color: var(--accent); }

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

.table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
}
.table-header h2 { font-size: 1rem; font-weight: 600; }

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

.data-table th {
    text-align: left;
    padding: 0.75rem 1.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}

.data-table td {
    padding: 0.75rem 1.25rem;
    font-size: 0.88rem;
    border-bottom: 1px solid var(--border);
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--bg-hover); }

/* ---- Badges ---- */
.badge {
    display: inline-block;
    padding: 0.2rem 0.65rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-present { background: var(--green-bg); color: var(--green); }
.badge-late { background: var(--yellow-bg); color: var(--yellow); }
.badge-absent { background: var(--red-bg); color: var(--red); }
.badge-incomplete { background: rgba(108,159,255,0.1); color: var(--accent); }
.badge-active { background: var(--green-bg); color: var(--green); }
.badge-inactive { background: var(--red-bg); color: var(--red); }
.badge-entrada { background: var(--green-bg); color: var(--green); }
.badge-salida { background: rgba(108,159,255,0.1); color: var(--accent); }
.badge-linked { background: var(--green-bg); color: var(--green); }
.badge-unlinked { background: var(--yellow-bg); color: var(--yellow); }

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}
.btn:hover { background: var(--bg-hover); }
.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.8rem; }

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

.btn-danger {
    color: var(--red);
    border-color: var(--red);
    background: transparent;
}
.btn-danger:hover { background: var(--red-bg); }

.btn-full { width: 100%; justify-content: center; padding: 0.75rem; }

.btn-icon {
    padding: 0.35rem;
    border: none;
    background: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
}
.btn-icon:hover { color: var(--text-primary); background: var(--bg-hover); }

/* ---- Forms ---- */
.form-group {
    margin-bottom: 1rem;
}
.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.65rem 0.85rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: border-color 0.15s;
}
.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.search-bar {
    margin-bottom: 1rem;
}
.search-bar input {
    width: 100%;
    padding: 0.65rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
}
.search-bar input:focus { outline: none; border-color: var(--accent); }

.filters-bar {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}
.filters-bar input,
.filters-bar select {
    padding: 0.55rem 0.85rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.85rem;
}
.filters-bar input:focus,
.filters-bar select:focus { outline: none; border-color: var(--accent); }

/* ---- Modals ---- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 200;
}
.modal-overlay.active { display: flex; }

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    width: 90%;
    max-width: 480px;
    box-shadow: var(--shadow);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}
.modal-header h3 { font-size: 1.1rem; }
.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
}
.modal-close:hover { color: var(--text-primary); }

.login-modal {
    max-width: 380px;
    text-align: center;
}
.login-header {
    margin-bottom: 1.5rem;
    color: var(--accent);
}
.login-header h2 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin: 0.75rem 0 0.25rem;
}
.login-header p { color: var(--text-secondary); font-size: 0.85rem; }
.login-error {
    color: var(--red);
    font-size: 0.85rem;
    margin-top: 0.75rem;
    min-height: 1.2em;
}

/* ---- Token display ---- */
.token-display {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    background: var(--bg-primary);
    padding: 0.3rem 0.6rem;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ---- Actions ---- */
.actions-cell {
    display: flex;
    gap: 0.3rem;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .menu-toggle { display: block; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
    .filters-bar { flex-direction: column; }
    .data-table { font-size: 0.8rem; }
    .data-table th, .data-table td { padding: 0.5rem 0.75rem; }
}