/* ScheduleLink - Professional Dark Theme */

:root {
    /* Colors */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-hover: #475569;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-light: #60a5fa;
    
    --success: #22c55e;
    --success-bg: rgba(34, 197, 94, 0.1);
    --error: #ef4444;
    --error-bg: rgba(239, 68, 68, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    
    --border: #334155;
    --border-light: #475569;
    
    /* Spacing */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    color: var(--text-secondary);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-light);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo span {
    color: var(--accent);
}

.nav {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--accent);
    background: rgba(59, 130, 246, 0.1);
}

/* Main Content */
.main {
    flex: 1;
    padding: 2rem 0;
}

/* Cards */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-dim);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-help {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.form-error {
    font-size: 0.875rem;
    color: var(--error);
    margin-top: 0.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-hover);
}

.btn-danger {
    background: var(--error);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: #16a34a;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

/* Grid */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
}

.alert-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success);
}

.alert-error {
    background: var(--error-bg);
    color: var(--error);
    border: 1px solid var(--error);
}

.alert-warning {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid var(--warning);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
}

.badge-success {
    background: var(--success-bg);
    color: var(--success);
}

.badge-error {
    background: var(--error-bg);
    color: var(--error);
}

.badge-warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.badge-info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent);
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    font-weight: 500;
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tr:hover td {
    background: var(--bg-tertiary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.empty-state-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.empty-state-text {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* Loading */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Stats */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* Working Hours */
.working-hours-day {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: 0.75rem;
}

.working-hours-day.disabled {
    opacity: 0.5;
}

.working-hours-toggle {
    flex-shrink: 0;
}

.working-hours-day-name {
    width: 100px;
    font-weight: 500;
}

.working-hours-times {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
}

.working-hours-times input {
    width: 100px;
    padding: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
}

/* Toggle Switch */
.toggle {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 28px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-tertiary);
    border-radius: 28px;
    transition: 0.3s;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: 0.3s;
}

.toggle input:checked + .toggle-slider {
    background-color: var(--accent);
}

.toggle input:checked + .toggle-slider:before {
    transform: translateX(20px);
}

/* Booking Page Specific */
.booking-page {
    max-width: 600px;
    margin: 0 auto;
}

.booking-header {
    text-align: center;
    margin-bottom: 2rem;
}

.booking-avatar {
    width: 80px;
    height: 80px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--text-muted);
}

.booking-host-name {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.booking-duration {
    color: var(--text-muted);
}

/* Date Picker */
.date-picker {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.date-picker-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.date-picker-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
}

.date-picker-day:hover:not(.disabled):not(.selected) {
    border-color: var(--accent);
}

.date-picker-day.selected {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.date-picker-day.disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.date-picker-day.today {
    border-color: var(--accent);
}

/* Time Slots */
.time-slots {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.time-slot {
    padding: 0.75rem;
    text-align: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

.time-slot:hover:not(.disabled) {
    border-color: var(--accent);
}

.time-slot.selected {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.time-slot.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

@media (max-width: 480px) {
    .time-slots {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Auth Pages */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.auth-card {
    width: 100%;
    max-width: 400px;
}

.auth-title {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-muted);
}

/* Dashboard Layout */
.dashboard {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2rem;
    min-height: calc(100vh - 80px);
}

.sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all 0.2s;
}

.sidebar-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.sidebar-link.active {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent);
}

.sidebar-link-icon {
    font-size: 1.25rem;
}

.dashboard-content {
    padding: 0 1rem;
}

@media (max-width: 768px) {
    .dashboard {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: none;
    }
}

/* Bookings List */
.booking-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 1.25rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}

.booking-item-info h4 {
    margin-bottom: 0.25rem;
}

.booking-item-time {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.booking-item-client {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.booking-item-actions {
    display: flex;
    gap: 0.5rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.5rem;
    line-height: 1;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* Subscription Banner */
.subscription-banner {
    background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    color: white;
}

.subscription-banner h3 {
    color: white;
    margin-bottom: 0.5rem;
}

.subscription-banner p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
}

.subscription-banner .btn {
    background: white;
    color: var(--accent);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.hidden { display: none !important; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

/* Animations */
.fade-in {
    animation: fadeIn 0.3s ease-out;
}

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

/* Success Animation */
.success-checkmark {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--success-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--success);
    animation: scaleIn 0.5s ease-out;
}

@keyframes scaleIn {
    0% { transform: scale(0); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}