/* ============================================
   BookAVan - Modern Van Booking System Styles
   ============================================ */

/* ============================================
   CSS Reset & Base Styles
   ============================================ */

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

:root {
    /* Color Palette */
    --primary-blue: #2563eb;
    --primary-blue-dark: #1e40af;
    --primary-blue-light: #3b82f6;
    --secondary-gray: #f3f4f6;
    --dark-gray: #1f2937;
    --medium-gray: #6b7280;
    --light-gray: #e5e7eb;
    --white: #ffffff;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-blue-dark);
}

/* ============================================
   Container & Layout
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-2xl) 0;
}

.section-gray {
    background-color: var(--secondary-gray);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
}

.section-subtitle {
    text-align: center;
    color: var(--medium-gray);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
}

/* ============================================
   Navigation
   ============================================ */

.navbar {
    background-color: var(--white);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

.nav-brand h1 {
    font-size: var(--font-size-xl);
    margin: 0;
    color: var(--primary-blue);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--dark-gray);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary-blue);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.user-info span {
    font-weight: 500;
    color: var(--dark-gray);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.625rem 1.25rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1.5;
}

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

.btn-primary:hover {
    background-color: var(--primary-blue-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-outline:hover {
    background-color: var(--primary-blue);
    color: var(--white);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: var(--font-size-lg);
}

.btn-block {
    display: block;
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: var(--white);
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
}

.hero-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

.hero-note {
    margin-top: var(--spacing-lg);
    opacity: 0.9;
}

/* ============================================
   Booking Section
   ============================================ */

.section-booking {
    background-color: var(--white);
}

.booking-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

/* Calendar Styles */
.calendar-container {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.calendar-header h3 {
    margin: 0;
    font-size: var(--font-size-xl);
}

.calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--spacing-xs);
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: var(--transition);
    background-color: var(--secondary-gray);
}

.calendar-day:hover {
    background-color: var(--light-gray);
}

.calendar-day.header {
    font-weight: 700;
    background-color: transparent;
    cursor: default;
    color: var(--medium-gray);
}

.calendar-day.other-month {
    opacity: 0.3;
}

.calendar-day.today {
    border: 2px solid var(--primary-blue);
    font-weight: 700;
}

.calendar-day.selected {
    background-color: var(--primary-blue);
    color: var(--white);
}

.calendar-day.booked {
    background-color: #fee2e2;
    color: #991b1b;
    cursor: not-allowed;
}

.calendar-day.blocked {
    background-color: #fef3c7;
    color: #92400e;
    cursor: not-allowed;
}

.calendar-legend {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-sm);
}

.legend-color.available {
    background-color: var(--secondary-gray);
}

.legend-color.booked {
    background-color: #fee2e2;
}

.legend-color.blocked {
    background-color: #fef3c7;
}

/* Booking Form */
.booking-form-container {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.booking-form h3 {
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--dark-gray);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.625rem;
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* ============================================
   Alerts
   ============================================ */

.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
    border-left: 4px solid var(--info);
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border-left: 4px solid var(--success);
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--error);
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
    border-left: 4px solid var(--warning);
}

/* ============================================
   Photos Section
   ============================================ */

.photos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.photo-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    background-color: var(--white);
}

.photo-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.photo-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.photo-card {
    position: relative;
}

.photo-card-info {
    padding: var(--spacing-sm);
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-delete-photo {
    background-color: var(--error);
    color: var(--white);
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.25rem 0.5rem;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-delete-photo:hover {
    background-color: #dc2626;
    transform: scale(1.1);
}

.btn-delete-photo:active {
    transform: scale(0.95);
}

.photo-card {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--medium-gray);
}

/* ============================================
   AppMyCar Section
   ============================================ */

.appmycar-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.appmycar-text {
    padding-right: var(--spacing-lg);
}

.appmycar-text p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--medium-gray);
}

.checklist {
    list-style: none;
    margin: var(--spacing-lg) 0;
}

.checklist li {
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-lg);
    color: var(--dark-gray);
}

.phone-mockup {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    max-width: 300px;
    margin: 0 auto;
}

.phone-screen {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.app-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.phone-screen h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.phone-screen p {
    color: var(--medium-gray);
}

/* ============================================
   FAQ Section
   ============================================ */

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background-color: var(--white);
    border: none;
    cursor: pointer;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--dark-gray);
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--secondary-gray);
}

.faq-icon {
    font-size: var(--font-size-2xl);
    font-weight: 300;
    color: var(--primary-blue);
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--medium-gray);
    line-height: 1.8;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    margin-bottom: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.8);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-section a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--spacing-xs);
}

.separator {
    margin: 0 var(--spacing-xs);
}

.gdpr-note {
    max-width: 800px;
    margin: var(--spacing-sm) auto 0;
}

/* ============================================
   Admin Panel
   ============================================ */

.admin-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    z-index: 2000;
}

.close-btn {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: var(--font-size-3xl);
    cursor: pointer;
    color: var(--medium-gray);
    line-height: 1;
}

.close-btn:hover {
    color: var(--dark-gray);
}

.admin-section {
    margin-bottom: var(--spacing-lg);
}

.admin-section h3 {
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
}

.floating-btn {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--primary-blue);
    color: var(--white);
    border: none;
    font-size: var(--font-size-2xl);
    cursor: pointer;
    box-shadow: var(--shadow-xl);
    transition: var(--transition);
    z-index: 1000;
}

.floating-btn:hover {
    background-color: var(--primary-blue-dark);
    transform: scale(1.1);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 968px) {
    .booking-container {
        grid-template-columns: 1fr;
    }
    
    .appmycar-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .navbar .container {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav-links {
        justify-content: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .photos-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: var(--font-size-base);
    }
    
    .calendar {
        gap: 2px;
    }
    
    .calendar-day {
        font-size: 0.75rem;
    }
}

/* ============================================
   Utility Classes
   ============================================ */

.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }