:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #a855f7;
    --accent: #f43f5e;
    --bg-light: #f8fafc;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --white: #ffffff;
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    z-index: 1000;
    padding: 16px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: var(--transition);
}

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

/* Section Common */
.section-header {
    margin-bottom: 48px;
}

.section-header.centered {
    text-align: center;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
}

/* About / Mission Section */
.about-section {
    padding: 100px 0;
}

.mission-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.mission-text h2 {
    font-size: 2.75rem;
    margin-bottom: 24px;
    line-height: 1.2;
}

.mission-text p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
}

.feature-item i {
    color: #22c55e;
}

.mission-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.stat-card {
    background: var(--white);
    padding: 40px 24px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
}

.stat-card h3 {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 8px;
}

.stat-card p {
    color: var(--text-muted);
    font-weight: 600;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    padding: 100px 0;
    text-align: center;
    color: var(--white);
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero-content p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.9;
}

/* Search Section */
.search-section {
    margin-top: -60px;
    padding-bottom: 60px;
}

.search-card {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.search-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.input-group input {
    padding: 14px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    transition: var(--transition);
    outline: none;
}

.input-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.search-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

/* Buttons */
.btn {
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background-color: #f1f5f9;
    color: var(--text-main);
}

.btn-secondary:hover {
    background-color: #e2e8f0;
    transform: translateY(-2px);
}

.btn-icon {
    padding: 14px;
    background-color: #f1f5f9;
    color: var(--text-muted);
}

.btn-icon:hover {
    background-color: #e2e8f0;
    color: var(--primary);
}

/* Main Layout */
.app-main {
    margin-bottom: 80px;
}

.layout-grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 40px;
    min-height: 600px;
}

.results-side {
    overflow-y: auto;
}

.map-side {
    height: 600px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

#map {
    height: 100%;
    width: 100%;
    z-index: 1;
}

/* Results State */
.placeholder-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    color: var(--text-muted);
    padding: 40px;
    border: 2px dashed #e2e8f0;
    border-radius: var(--radius);
}

.placeholder-text i {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.3;
}

.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 0;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 5px solid #e2e8f0;
    border-top: 5px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hidden {
    display: none !important;
}

/* Route Cards */
.results-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.route-card {
    background: var(--white);
    padding: 24px;
    border-radius: var(--radius);
    border: 2px solid transparent;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    cursor: pointer;
}

.route-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow);
}

.route-card.active {
    border-color: var(--primary);
    background: #f5f3ff;
}

.route-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.badge-fastest { background: #fee2e2; color: #ef4444; }
.badge-cheapest { background: #dcfce7; color: #22c55e; }

.route-info {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.route-main h3 {
    font-size: 1.25rem;
    margin-bottom: 4px;
}

.route-stats {
    display: flex;
    gap: 16px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.route-price {
    text-align: right;
}

.price {
    font-size: 1.5rem;
    font-weight: 700;
    display: block;
    color: var(--primary);
}

.route-steps {
    margin-top: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid #f1f5f9;
}

.step {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 500;
}

.step-icon {
    width: 32px;
    height: 32px;
    background: #f1f5f9;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.step-arrow {
    color: #cbd5e1;
    font-size: 0.8rem;
}

/* Reviews Section */
.reviews-section {
    padding: 100px 0;
    background: #f1f5f9;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.review-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.review-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow);
}

.review-stars {
    color: #fbbf24;
    margin-bottom: 20px;
}

.review-card p {
    font-style: italic;
    color: var(--text-main);
    margin-bottom: 28px;
    font-size: 1.1rem;
}

.reviewer {
    display: flex;
    align-items: center;
    gap: 16px;
}

.reviewer img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.reviewer strong {
    display: block;
    font-size: 1rem;
}

.reviewer span {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Footer */
.footer {
    padding: 40px 0;
    text-align: center;
    color: var(--text-muted);
    border-top: 1px solid #e2e8f0;
}

/* Responsive */
@media (max-width: 900px) {
    .mission-grid {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }

    .feature-list {
        align-items: center;
    }

    .section-header p {
        margin: 0 auto;
    }

    .layout-grid {
        grid-template-columns: 1fr;
    }
    
    .map-side {
        height: 400px;
        order: -1;
    }
    
    .search-inputs {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .search-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .nav-links {
        display: none;
    }
}