/* ============================================
   SF Solution Booking System - Main Styles
   Light/Dark Mode with CSS Variables
   ============================================ */

/* ============================================
   Base Styles
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

/* ============================================
   Container & Layout
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* ============================================
   Header with SF Solution Branding
   ============================================ */
.header {
    background: var(--bg-header);
    color: var(--text-light);
    padding: 2rem;
    margin: -2rem -2rem 2rem -2rem;
    border-radius: 0 0 12px 12px;
    position: relative;
    overflow: hidden;
}

/* Decorative X pattern */
.header::before {
    content: '✕';
    position: absolute;
    top: -20px;
    right: 50px;
    font-size: 120px;
    color: var(--primary-orange);
    opacity: 0.1;
    transform: rotate(15deg);
    pointer-events: none;
    /* Allow clicks to pass through to buttons */
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.logo-section {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    color: var(--primary-orange);
    font-size: 2rem;
    font-weight: bold;
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-light);
}

.tagline {
    font-size: 0.75rem;
    letter-spacing: 2px;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-left: 2.5rem;
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-light);
}

/* Custom Logo Styles */
.custom-logo {
    height: 60px;
    width: auto;
    max-width: 250px;
    object-fit: contain;
}

/* Auto-invert dark logos in dark mode for visibility */
[data-theme="dark"] .custom-logo {
    filter: invert(1) hue-rotate(180deg);
}

/* Theme Toggle Container */
.theme-toggle-container {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

/* ============================================
   Date Selector Section
   ============================================ */
.date-selector {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.date-selector h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.date-inputs {
    display: flex;
    gap: 1.5rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.input-group {
    flex: 1;
    min-width: 200px;
}

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

.input-group input[type="date"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-speed) var(--transition-timing);
}

.input-group input[type="date"]:focus {
    outline: none;
    border-color: var(--primary-orange);
    box-shadow: 0 0 0 3px rgba(255, 102, 51, 0.1);
}

/* Fix calendar icon visibility in dark mode */
.input-group input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(0.7);
    cursor: pointer;
}

[data-theme="light"] .input-group input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(0.3);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-timing);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--primary-orange);
    color: #000000;
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--primary-orange-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(196, 214, 0, 0.4);
}

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

.btn-secondary:hover {
    background: var(--bg-secondary);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ============================================
   Slots Section
   ============================================ */
.slots-section {
    margin-top: 2rem;
}

.slots-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.slots-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.date-group {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.date-header {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary-orange);
    font-weight: 600;
}

.slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.slot-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    transition: all var(--transition-speed) var(--transition-timing);
    cursor: pointer;
}

.slot-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-orange);
    box-shadow: 0 8px 20px rgba(196, 214, 0, 0.2);
}

[data-theme="dark"] .slot-card:hover {
    box-shadow: 0 8px 20px rgba(196, 214, 0, 0.3);
}

.slot-time {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.btn-book {
    width: 100%;
    background: var(--primary-orange);
    color: white;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-book:hover {
    background: var(--primary-orange-dark);
}

.no-slots {
    text-align: center;
    padding: 3rem;
    background: var(--bg-primary);
    border-radius: 12px;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

/* ============================================
   Loading Indicator
   ============================================ */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    gap: 1.5rem;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-orange);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ============================================
   Modal
   ============================================ */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    overflow-y: auto;
}

.modal-content {
    background-color: var(--bg-primary);
    margin: 5% auto;
    padding: 3rem;
    border-radius: 12px;
    max-width: 600px;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
    border-top: 4px solid var(--primary-orange);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Decorative X in modal */
.modal-content::before {
    content: '✕';
    position: absolute;
    top: 10px;
    right: 60px;
    font-size: 60px;
    color: var(--primary-orange);
    opacity: 0.05;
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-timing);
    z-index: 1;
}

.close:hover {
    color: var(--primary-orange);
}

.modal-content h2 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.selected-slot-info {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    border-left: 4px solid var(--primary-orange);
}

.selected-slot-info p {
    margin-bottom: 0.5rem;
}

/* ============================================
   Form Styles
   ============================================ */
.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-speed) var(--transition-timing);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-orange);
    box-shadow: 0 0 0 3px rgba(255, 102, 51, 0.1);
}

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

.form-actions {
    display: flex;
    gap: 1.5rem;
    margin-top: 2rem;
}

.form-actions .btn {
    flex: 1;
}

.booking-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    gap: 1.5rem;
}

/* ============================================
   Confirmation Modal
   ============================================ */
.modal-content.confirmation {
    text-align: center;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-orange);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin: 0 auto 1.5rem;
    animation: scaleIn 0.5s ease;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }

    to {
        transform: scale(1);
    }
}

.confirmation-details {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 8px;
    margin: 2rem 0;
    text-align: left;
    border-left: 4px solid var(--primary-orange);
}

.confirmation-details p {
    margin-bottom: 1rem;
}

.confirmation-note {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ============================================
   Error Message
   ============================================ */
.error-message {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: var(--danger);
    color: white;
    padding: 1.5rem 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: 400px;
    z-index: 2000;
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }

    to {
        transform: translateX(0);
    }
}

.error-icon {
    font-size: 1.5rem;
}

.close-error {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    margin-left: auto;
}

/* ============================================
   Language Switcher
   ============================================ */
.language-switcher {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.lang-btn {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-timing);
    text-transform: uppercase;
}

.lang-btn:hover {
    border-color: var(--primary-orange);
    color: var(--text-primary);
}

.lang-btn.active {
    background: var(--primary-orange);
    border-color: var(--primary-orange);
    color: #000000;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .header {
        margin: -1rem -1rem 1rem -1rem;
        padding: 1.5rem 1rem;
    }

    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .header h1 {
        font-size: 1.25rem;
    }

    .logo-text {
        font-size: 1.5rem;
    }

    .theme-toggle-container {
        top: 0.5rem;
        right: 0.5rem;
    }

    .date-inputs {
        flex-direction: column;
    }

    .input-group {
        width: 100%;
    }

    .slots-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        margin: 10% 1rem;
        padding: 2rem;
    }

    .form-actions {
        flex-direction: column;
    }

    .error-message {
        left: 1rem;
        right: 1rem;
        max-width: none;
    }
}