/* ========================================
   WorkNest - Application Styles
   ======================================== */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --success: #16a34a;
    --success-light: #dcfce7;
    --danger: #dc2626;
    --danger-light: #fee2e2;
    --warning: #d97706;
    --warning-light: #fef3c7;
    --info: #0891b2;
    --info-light: #cffafe;
    --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: 240px;
    --header-height: 60px;
    --radius: 8px;
    --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);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--gray-800);
    background: var(--gray-50);
}

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

/* ---- Auth Layout ---- */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
    padding: 20px;
}

.auth-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 420px;
    padding: 40px;
}

.auth-card h1 {
    font-size: 24px;
    margin-bottom: 8px;
    color: var(--gray-900);
}

.auth-card .subtitle {
    color: var(--gray-500);
    margin-bottom: 28px;
}

.auth-logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 24px;
    display: block;
}

/* ---- App Layout ---- */
.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;
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform 0.3s;
}

.sidebar-brand {
    padding: 18px 20px;
    font-size: 20px;
    font-weight: 700;
    border-bottom: 1px solid var(--gray-700);
    color: #fff;
}

.sidebar-brand:hover { text-decoration: none; }

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

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    color: var(--gray-300);
    font-size: 14px;
    transition: background 0.2s, color 0.2s;
}

.sidebar-nav a:hover { background: var(--gray-800); color: #fff; text-decoration: none; }
.sidebar-nav a.active { background: var(--primary); color: #fff; }

.sidebar-nav .nav-icon {
    width: 20px;
    margin-right: 10px;
    text-align: center;
    font-style: normal;
}

.sidebar-section {
    padding: 12px 20px 4px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
}

.sidebar-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--gray-700);
}

.sidebar-footer a { color: var(--gray-400); font-size: 13px; }
.sidebar-footer a:hover { color: #fff; }

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

.top-bar {
    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;
}

.top-bar h2 {
    font-size: 18px;
    color: var(--gray-900);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-info {
    font-size: 13px;
    color: var(--gray-600);
}

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

/* ---- Cards ---- */
.card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

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

.card-header h3 {
    font-size: 16px;
    color: var(--gray-800);
}

.card-body { padding: 20px; }

/* ---- Stat Cards ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
}

.stat-card .stat-label {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--gray-500);
    letter-spacing: 0.04em;
    margin-bottom: 4px;
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
}

.stat-card .stat-sub {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 4px;
}

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

.form-group label {
    display: block;
    margin-bottom: 4px;
    font-weight: 500;
    font-size: 13px;
    color: var(--gray-700);
}

.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
    background: #fff;
    color: var(--gray-800);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

select.form-control {
    appearance: auto;
}

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

.form-check input[type="checkbox"] {
    width: 16px;
    height: 16px;
}

.form-inline {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.form-inline .form-group { margin-bottom: 0; }

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s;
    text-decoration: none;
    gap: 6px;
}

.btn:hover { text-decoration: none; }

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

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

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

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}
.btn-outline:hover { background: var(--gray-100); }

.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }
.btn-block { display: flex; width: 100%; }

/* ---- Tables ---- */
.table-wrapper { overflow-x: auto; }

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

thead th {
    background: var(--gray-50);
    padding: 10px 16px;
    text-align: left;
    font-size: 12px;
    text-transform: uppercase;
    color: var(--gray-500);
    letter-spacing: 0.04em;
    border-bottom: 2px solid var(--gray-200);
}

tbody td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--gray-100);
    font-size: 14px;
}

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

/* ---- Badges ---- */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-onsite { background: var(--primary-light); color: var(--primary-dark); }
.badge-remote { background: var(--success-light); color: var(--success); }
.badge-active { background: var(--success-light); color: var(--success); }
.badge-admin { background: var(--warning-light); color: var(--warning); }

/* ---- Alerts ---- */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
}

.alert-success { background: var(--success-light); color: #166534; border: 1px solid #bbf7d0; }
.alert-error { background: var(--danger-light); color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: var(--warning-light); color: #92400e; border: 1px solid #fde68a; }
.alert-info { background: var(--info-light); color: #155e75; border: 1px solid #a5f3fc; }

/* ---- Planner Grid ---- */
.planner-grid {
    display: grid;
    grid-template-columns: 160px repeat(7, 1fr);
    gap: 1px;
    background: var(--gray-200);
    border-radius: var(--radius);
    overflow: hidden;
}

.planner-grid .cell {
    background: #fff;
    padding: 8px;
    min-height: 60px;
    font-size: 12px;
}

.planner-grid .cell-header {
    background: var(--gray-50);
    font-weight: 600;
    font-size: 12px;
    text-align: center;
    padding: 10px 8px;
    color: var(--gray-600);
}

.planner-grid .cell-name {
    display: flex;
    align-items: center;
    font-weight: 500;
    font-size: 13px;
    color: var(--gray-700);
}

.planner-block {
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    margin-bottom: 2px;
}

/* ---- Status indicator ---- */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}

.status-dot.active { background: var(--success); animation: pulse 2s infinite; }
.status-dot.inactive { background: var(--gray-300); }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ---- Active Session Card ---- */
.active-session {
    background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
    color: #fff;
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
}

.active-session h3 { margin-bottom: 8px; }
.active-session .session-time { font-size: 32px; font-weight: 700; }
.active-session .session-meta { opacity: 0.85; font-size: 13px; margin-top: 8px; }

/* ---- Confirm Modal ---- */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.modal.is-open {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
}

.modal-dialog {
    position: relative;
    width: 100%;
    max-width: 400px;
    transform: scale(0.95) translateY(-10px);
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal.is-open .modal-dialog {
    transform: scale(1) translateY(0);
}

.modal-content {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    padding: 24px;
}

.modal-message {
    font-size: 15px;
    color: var(--gray-700);
    line-height: 1.5;
    margin-bottom: 20px;
}

.modal-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.modal-actions .modal-cancel {
    flex: 0 0 auto;
}

.modal-actions .modal-confirm {
    flex: 0 0 auto;
}

.modal-actions .modal-confirm.btn-danger {
    background: var(--danger);
    color: #fff;
}

.modal-actions .modal-confirm.btn-danger:hover {
    background: #b91c1c;
}

/* ---- Utility ---- */
.text-muted { color: var(--gray-500); }
.text-right { text-align: right; }
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 12px; }
.w-full { width: 100%; }

/* ---- Empty State ---- */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--gray-400);
}

.empty-state p { font-size: 16px; margin-bottom: 16px; }

/* ---- Responsive ---- */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--gray-700);
    padding: 4px;
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
    }
    .mobile-toggle {
        display: block;
    }
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    .form-inline {
        flex-direction: column;
        align-items: stretch;
    }
    .planner-grid {
        grid-template-columns: 120px repeat(7, 1fr);
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .auth-card {
        padding: 24px;
    }
}