/* BILLIG FLUGHAFENTRANSFER - INFORMATION SITE DESIGN SYSTEM */
:root {
    --primary-color: #f97316;
    --primary-light: #fb923c;
    --primary-dark: #ea580c;
    --secondary-color: #1e293b;
    --accent-color: #fbbf24;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.5);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    --radius: 12px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.7;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--secondary-color);
    line-height: 1.3;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    outline: none;
}

/* UTILITIES */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

.mb-8 {
    margin-bottom: 4rem;
}

/* GLASS */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
}

/* NAVIGATION */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--text-light);
    font-size: 0.95rem;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

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

/* HERO SECTION */
.hero {
    position: relative;
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #fff7ed 0%, #fefce8 50%, #fff 100%);
    overflow: hidden;
}

.hero-shape {
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 750px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    background: #fef3c7;
    color: #92400e;
    padding: 0.4rem 1rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid #fde68a;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 1.5rem;
    font-weight: 600;
    border-radius: var(--radius);
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    box-shadow: 0 4px 14px 0 rgba(249, 115, 22, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--white);
    color: var(--text-dark);
    border: 1px solid #e5e7eb;
}

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

/* COMPARISON TABLE */
.comparison-section {
    padding: 5rem 0;
    background: var(--white);
}

.comparison-table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    border: 1px solid #e5e7eb;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.comparison-table th {
    background: var(--secondary-color);
    color: var(--white);
    padding: 1rem;
    text-align: left;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comparison-table td {
    padding: 1rem;
    border-bottom: 1px solid #f1f5f9;
    font-size: 0.95rem;
}

.comparison-table tbody tr:hover {
    background: #fffbeb;
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

.price-green {
    color: #059669;
    font-weight: 700;
}

.price-yellow {
    color: #d97706;
    font-weight: 700;
}

.price-red {
    color: #dc2626;
    font-weight: 700;
}

.table-note {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--text-light);
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 0.75rem;
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 3rem;
    font-size: 1.05rem;
}

/* TIPS SECTION */
.tips-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.tip-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1.5rem;
    border: 1px solid #f1f5f9;
    transition: all 0.3s;
    position: relative;
}

.tip-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: #fed7aa;
}

.tip-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

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

.tip-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: #fff7ed;
    color: var(--primary-color);
    font-weight: 700;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

/* AREAS / CITY GUIDES */
.areas {
    padding: 5rem 0;
    background: var(--white);
}

.areas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.5rem;
}

.area-card {
    background: var(--bg-light);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
    border: 1px solid #f1f5f9;
}

.area-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.area-content {
    padding: 1.5rem;
}

.area-title {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}

.area-content p {
    color: var(--text-light);
    font-size: 0.85rem;
}

.read-more {
    display: inline-block;
    margin-top: 0.75rem;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
}

/* ARTICLE */
.article-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

.article-container {
    max-width: 780px;
}

.article-section article h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--primary-color);
}

.article-section article h3 {
    font-size: 1.3rem;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--secondary-color);
}

.article-section article p {
    color: #374151;
    margin-bottom: 1rem;
    font-size: 1rem;
}

/* FAQ */
.faq {
    padding: 5rem 0;
    background: var(--white);
}

.faq-item {
    border-bottom: 1px solid #e5e7eb;
    padding: 1.25rem 0;
}

.faq-question {
    font-weight: 600;
    font-size: 1.05rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-dark);
}

.faq-question:hover {
    color: var(--primary-color);
}

.faq-answer {
    margin-top: 0.75rem;
    color: var(--text-light);
    display: none;
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* FOOTER */
.footer {
    background: var(--secondary-color);
    color: #94a3b8;
    padding: 3rem 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.footer-links li {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

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

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 1.5rem;
    text-align: center;
    font-size: 0.8rem;
}

/* SERVICES (for sub-pages) */
.services {
    padding: 4rem 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: all 0.3s ease;
    border: 1px solid #f3f4f6;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: #fed7aa;
}

.service-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    display: inline-block;
    padding: 0.75rem;
    background: #fff7ed;
    border-radius: var(--radius);
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .nav-menu {
        display: none;
    }

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

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

    .section-title {
        font-size: 1.7rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

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