/**
 * 機場接送預約系統 - 淺色明亮主題
 * Airport Car Service Booking System - Light Theme
 */

/* ===================================
   CSS Variables - 淺色主題配色
   =================================== */
:root {
    /* 主色調 - 藍色系 */
    --primary: #2196F3;
    --primary-dark: #1976D2;
    --primary-light: #64B5F6;
    --secondary: #00BCD4;
    --accent: #FF6B35;

    /* 背景色 - 明亮淺色 */
    --bg-light: #FFFFFF;
    --bg-gray: #F5F7FA;
    --bg-section: #F0F4F8;
    --bg-card: #FFFFFF;
    --bg-glass: rgba(255, 255, 255, 0.95);

    /* 文字色 */
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a68;
    --text-muted: #8a8aa3;
    --text-light: #FFFFFF;

    /* 狀態色 */
    --success: #4CAF50;
    --warning: #FF9800;
    --danger: #F44336;
    --info: #2196F3;

    /* 邊框與陰影 */
    --border-color: #E0E6ED;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);

    /* 圓角 */
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 20px;

    /* 動畫 */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

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

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

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

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

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

/* ===================================
   Typography
   =================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.section-title p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(33, 150, 243, 0.4);
    color: white;
}

.btn-secondary {
    background: var(--bg-light);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-gray);
    border-color: var(--primary);
    color: var(--primary);
}

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

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

.btn-block {
    width: 100%;
}

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

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

/* ===================================
   Cards
   =================================== */
.card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

/* ===================================
   Forms
   =================================== */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-light);
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.15);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

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

/* ===================================
   Header
   =================================== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    padding: 0.75rem 0;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.logo-icon {
    font-size: 1.75rem;
}

.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

/* Mobile Menu Button - 預設隱藏 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
    padding: 0.5rem;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    padding: 4rem 0;
    color: white;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: white;
}

.hero-text p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 1.5rem;
}

.hero-price {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-size: 1.125rem;
    font-weight: 600;
}

/* Booking Form */
.booking-form {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}

.booking-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.booking-tab {
    flex: 1;
    padding: 0.875rem;
    background: var(--bg-gray);
    border: 2px solid transparent;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
}

.booking-tab:hover {
    background: var(--bg-section);
}

.booking-tab.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ===================================
   Steps Section
   =================================== */
.steps-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.step-card {
    text-align: center;
    padding: 2.5rem 1.5rem;
    position: relative;
    background: var(--bg-light);
    border: 2px solid var(--border-color);
}

.step-card:hover {
    border-color: var(--primary);
}

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

.step-number {
    position: absolute;
    top: -15px;
    right: 20px;
    width: 35px;
    height: 35px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    color: white;
}

.step-card h3 {
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.step-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===================================
   Features Section
   =================================== */
.features-section {
    padding: 5rem 0;
    background: var(--bg-section);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-light);
    border-radius: var(--border-radius);
    padding: 2rem 1.5rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h4 {
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--text-primary);
    color: var(--text-light);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
    color: white;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
}

.footer-section h4 {
    color: white;
    margin-bottom: 1.25rem;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

/* ===================================
   Page Header
   =================================== */
.page-header {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    padding: 3rem 0;
    text-align: center;
    color: white;
}

.page-header h1 {
    font-size: 2.25rem;
    margin-bottom: 0.5rem;
    color: white;
}

.page-header p {
    opacity: 0.9;
    font-size: 1.1rem;
}

/* ===================================
   Content Section
   =================================== */
.content-section {
    padding: 4rem 0;
}

/* ===================================
   News List
   =================================== */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.news-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.news-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.news-date {
    text-align: center;
    min-width: 60px;
}

.news-date .day {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
}

.news-date .month {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.news-content h3 {
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

.news-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===================================
   Fare Table
   =================================== */
.fare-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

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

.fare-table th {
    background: var(--primary);
    color: white;
    font-weight: 600;
}

.fare-table tr:hover {
    background: var(--bg-gray);
}

.fare-table .price {
    color: var(--accent);
    font-weight: 700;
    font-size: 1.125rem;
}

/* ===================================
   Alerts
   =================================== */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--border-radius-sm);
    margin-bottom: 1rem;
    font-weight: 500;
}

.alert-success {
    background: #E8F5E9;
    color: #2E7D32;
    border: 1px solid #A5D6A7;
}

.alert-warning {
    background: #FFF3E0;
    color: #E65100;
    border: 1px solid #FFCC80;
}

.alert-danger {
    background: #FFEBEE;
    color: #C62828;
    border: 1px solid #EF9A9A;
}

.alert-info {
    background: #E3F2FD;
    color: #1565C0;
    border: 1px solid #90CAF9;
}

/* ===================================
   Status Badges
   =================================== */
.status-badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 20px;
}

.status-pending {
    background: #FFF3E0;
    color: #E65100;
}

.status-confirmed {
    background: #E3F2FD;
    color: #1565C0;
}

.status-ongoing {
    background: #E8F5E9;
    color: #2E7D32;
}

.status-completed {
    background: #E8F5E9;
    color: #2E7D32;
}

.status-cancelled {
    background: #FFEBEE;
    color: #C62828;
}

/* ===================================
   Responsive
   =================================== */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.25rem;
    }

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

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

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

@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .form-row,
    .form-row-3 {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 3rem 0;
    }

    .hero-text h1 {
        font-size: 1.75rem;
    }

    .booking-form {
        padding: 1.5rem;
    }

    .booking-tabs {
        flex-direction: column;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-social {
        justify-content: center;
    }
}