/* ============================================
   SCHEDULING PANEL - Premium Dark Theme
   ============================================ */

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

/* ---- CSS Variables ---- */
:root {
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --bg-card: #1e1e35;
    --bg-card-hover: #252545;
    --bg-input: #12122a;
    --border-color: rgba(108, 92, 231, 0.15);
    --border-active: rgba(108, 92, 231, 0.5);

    --text-primary: #e8e8f0;
    --text-secondary: #a0a0c0;
    --text-muted: #6c6c8a;
    --text-heading: #ffffff;

    --accent: #6C5CE7;
    --accent-light: #a29bfe;
    --accent-dark: #5241c5;
    --accent-glow: rgba(108, 92, 231, 0.3);

    --success: #00cec9;
    --success-bg: rgba(0, 206, 201, 0.1);
    --warning: #fdcb6e;
    --warning-bg: rgba(253, 203, 110, 0.1);
    --danger: #ff6b6b;
    --danger-bg: rgba(255, 107, 107, 0.1);
    --info: #74b9ff;
    --info-bg: rgba(116, 185, 255, 0.1);

    --gradient-primary: linear-gradient(135deg, #6C5CE7 0%, #a29bfe 100%);
    --gradient-dark: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 100%);
    --gradient-card: linear-gradient(145deg, #1e1e35 0%, #16213e 100%);
    --gradient-success: linear-gradient(135deg, #00b894, #00cec9);
    --gradient-warning: linear-gradient(135deg, #f39c12, #fdcb6e);
    --gradient-danger: linear-gradient(135deg, #e74c3c, #ff6b6b);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(108, 92, 231, 0.2);

    --sidebar-width: 260px;
    --sidebar-collapsed: 70px;
    --header-height: 65px;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 15px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

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

/* ---- Layout ---- */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--gradient-card);
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    overflow: hidden;
}

.sidebar-header {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
    min-height: var(--header-height);
}

.sidebar-logo {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 800;
    color: #fff;
    flex-shrink: 0;
    box-shadow: var(--shadow-glow);
}

.sidebar-brand {
    display: flex;
    flex-direction: column;
}
.sidebar-brand h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-heading);
    line-height: 1.2;
}
.sidebar-brand small {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sidebar-nav {
    flex: 1;
    padding: 15px 10px;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 20px;
}

.nav-section-title {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-muted);
    padding: 0 12px;
    margin-bottom: 8px;
    font-weight: 600;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: var(--transition);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    position: relative;
    margin-bottom: 2px;
}
.nav-item:hover {
    background: rgba(108, 92, 231, 0.1);
    color: var(--text-primary);
}
.nav-item.active {
    background: rgba(108, 92, 231, 0.15);
    color: var(--accent-light);
}
.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--gradient-primary);
    border-radius: 0 3px 3px 0;
}

.nav-item .icon {
    font-size: 1.1rem;
    width: 22px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 15px;
    border-top: 1px solid var(--border-color);
}

.user-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: var(--radius-sm);
    background: rgba(108, 92, 231, 0.05);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: #fff;
    flex-shrink: 0;
}

.user-info {
    overflow: hidden;
}
.user-info .name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.user-info .role {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: capitalize;
}

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

.main-header {
    height: var(--header-height);
    background: rgba(15, 15, 26, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-title h1 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-heading);
}
.header-title p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.page-content {
    padding: 30px;
}

/* ---- Cards ---- */
.card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.card:hover {
    border-color: var(--border-active);
    box-shadow: var(--shadow-glow);
}

.card-header {
    padding: 18px 22px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.card-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-heading);
}

.card-body {
    padding: 22px;
}

/* ---- Stat Cards ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 22px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
}
.stat-card:hover::before {
    opacity: 1;
}
.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
    border-color: var(--border-active);
}

.stat-card .stat-info h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 8px;
    font-weight: 600;
}
.stat-card .stat-info .value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-heading);
    line-height: 1;
}
.stat-card .stat-info .label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}
.stat-icon.purple { background: rgba(108,92,231,0.15); color: var(--accent-light); }
.stat-icon.green { background: var(--success-bg); color: var(--success); }
.stat-icon.orange { background: var(--warning-bg); color: var(--warning); }
.stat-icon.red { background: var(--danger-bg); color: var(--danger); }
.stat-icon.blue { background: var(--info-bg); color: var(--info); }

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

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

thead th {
    text-align: left;
    padding: 12px 16px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

tbody td {
    padding: 14px 16px;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(108, 92, 231, 0.05);
    color: var(--text-primary);
}

tbody tr {
    transition: var(--transition);
}
tbody tr:hover {
    background: rgba(108, 92, 231, 0.05);
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.5);
    color: #fff;
}

.btn-success {
    background: var(--gradient-success);
    color: #fff;
}
.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 206, 201, 0.3);
    color: #fff;
}

.btn-danger {
    background: var(--gradient-danger);
    color: #fff;
}
.btn-danger:hover {
    transform: translateY(-2px);
    color: #fff;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-active);
    color: var(--accent-light);
}
.btn-outline:hover {
    background: rgba(108, 92, 231, 0.1);
    color: var(--accent-light);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.78rem;
}

.btn-xs {
    padding: 4px 10px;
    font-size: 0.72rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

/* ---- Forms ---- */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 11px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
}
.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-control::placeholder {
    color: var(--text-muted);
}

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 24 24' fill='none' stroke='%236c6c8a' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 18px;
}

/* ---- Badges / Status ---- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-pending { background: var(--warning-bg); color: var(--warning); }
.badge-confirmed { background: rgba(108,92,231,0.15); color: var(--accent-light); }
.badge-completed { background: var(--success-bg); color: var(--success); }
.badge-cancelled { background: rgba(150,150,170,0.15); color: #999; }
.badge-no_show { background: var(--danger-bg); color: var(--danger); }
.badge-active { background: var(--success-bg); color: var(--success); }
.badge-inactive { background: rgba(150,150,170,0.15); color: #999; }

/* ---- Color dot ---- */
.color-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

/* ---- Alerts / Toast ---- */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideDown 0.3s ease;
}

.alert-success {
    background: var(--success-bg);
    border: 1px solid rgba(0,206,201,0.3);
    color: var(--success);
}

.alert-error {
    background: var(--danger-bg);
    border: 1px solid rgba(255,107,107,0.3);
    color: var(--danger);
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---- Modal ---- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}
.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 550px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: scaleIn 0.3s ease;
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-heading);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 4px;
    transition: var(--transition);
}
.modal-close:hover {
    color: var(--danger);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }

/* ---- Appointment Card ---- */
.appointment-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px;
    border-radius: var(--radius-sm);
    background: rgba(108,92,231,0.03);
    border-left: 3px solid var(--accent);
    margin-bottom: 8px;
    transition: var(--transition);
}
.appointment-card:hover {
    background: rgba(108,92,231,0.08);
}

.appointment-time {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-light);
    min-width: 70px;
    text-align: center;
}

.appointment-info h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}
.appointment-info p {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ---- Slot Picker ---- */
.slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 8px;
}

.slot-btn {
    padding: 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 0.82rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}
.slot-btn:hover {
    border-color: var(--accent);
    background: rgba(108,92,231,0.1);
    transform: translateY(-1px);
}
.slot-btn.selected {
    background: var(--gradient-primary);
    color: #fff;
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(108,92,231,0.3);
}

/* ---- Calendar Overrides (FullCalendar) ---- */
.fc {
    --fc-border-color: var(--border-color);
    --fc-button-bg-color: var(--accent);
    --fc-button-border-color: var(--accent);
    --fc-button-hover-bg-color: var(--accent-dark);
    --fc-button-hover-border-color: var(--accent-dark);
    --fc-button-active-bg-color: var(--accent-dark);
    --fc-button-active-border-color: var(--accent-dark);
    --fc-today-bg-color: rgba(108,92,231,0.08);
    --fc-event-bg-color: var(--accent);
    --fc-event-border-color: var(--accent);
    --fc-page-bg-color: transparent;
    --fc-neutral-bg-color: var(--bg-card);
    --fc-list-event-hover-bg-color: rgba(108,92,231,0.1);
    --fc-theme-standard-border-color: var(--border-color);
}

.fc .fc-toolbar-title {
    color: var(--text-heading) !important;
    font-size: 1.2rem !important;
    font-weight: 700 !important;
}

.fc .fc-col-header-cell-cushion,
.fc .fc-daygrid-day-number {
    color: var(--text-secondary) !important;
    font-size: 0.82rem;
}

.fc .fc-event {
    border-radius: 6px !important;
    padding: 2px 6px !important;
    font-size: 0.78rem !important;
    border: none !important;
}

.fc .fc-button {
    border-radius: var(--radius-sm) !important;
    font-weight: 600 !important;
    font-size: 0.82rem !important;
}

.fc .fc-scrollgrid {
    border-radius: var(--radius) !important;
    overflow: hidden;
}

.fc td, .fc th {
    border-color: var(--border-color) !important;
}

/* ---- Auth Pages ---- */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.auth-page::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(108,92,231,0.15) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    border-radius: 50%;
}
.auth-page::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0,206,201,0.08) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    border-radius: 50%;
}

.auth-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 90%;
    max-width: 440px;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin: 0 auto 16px;
    box-shadow: var(--shadow-glow);
}

.auth-header h1 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-heading);
    margin-bottom: 6px;
}

.auth-header p {
    font-size: 0.88rem;
    color: var(--text-muted);
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ---- Empty State ---- */
.empty-state {
    text-align: center;
    padding: 50px 20px;
    color: var(--text-muted);
}

.empty-state .icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 0.88rem;
    margin-bottom: 20px;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
    }
    .page-content {
        padding: 15px;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .mobile-toggle {
        display: flex !important;
    }
}

.mobile-toggle {
    display: none !important;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 5px;
}

/* ---- Utilities ---- */
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-accent { color: var(--accent-light); }
.fw-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%; }
.text-center { text-align: center; }
.text-right { text-align: right; }