/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563eb;
    --accent: #f59e0b;
    --dark: #0f172a;
    --text: #334155;
    --text-light: #64748b;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --radius: 16px;
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.12);
    --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Noto Sans SC', -apple-system, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

/* ===== Hero ===== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background:
        linear-gradient(135deg, #0f172a 0%, #1e293b 30%, #1e3a5f 60%, #0f172a 100%);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 80%, rgba(37, 99, 235, 0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(245, 158, 11, 0.1) 0%, transparent 60%);
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        url("data:image/svg+xml,%3Csvg viewBox='0 0 800 800' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    padding: 24px;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 20px;
    border-radius: 100px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.15);
    font-size: 14px;
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    letter-spacing: 4px;
    line-height: 1.2;
    background: linear-gradient(135deg, #fbbf24, #f59e0b, #f97316);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(255,255,255,0.75);
    font-weight: 300;
    letter-spacing: 2px;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    margin-bottom: 48px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-num {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, #fbbf24, #f97316);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.2);
}

.hero-cta {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 100px;
    background: linear-gradient(135deg, #f59e0b, #f97316);
    color: white;
    font-weight: 600;
    text-decoration: none;
    font-size: 16px;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.4);
}

.hero-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(245, 158, 11, 0.5);
}

/* ===== Tabs Switcher ===== */
.tabs-switcher {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 12px;
}

.tab-btn {
    padding: 14px 32px;
    border: 2px solid rgba(0,0,0,0.08);
    border-radius: 12px;
    background: white;
    font-size: 16px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text);
}

.tab-btn:hover {
    border-color: var(--primary);
    background: rgba(37,99,235,0.04);
}

.tab-btn.active {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 16px rgba(37,99,235,0.3);
}

.version-desc {
    text-align: center;
    color: var(--text-light);
    font-size: 15px;
    margin-top: 4px;
    margin-bottom: 8px;
}

/* ===== Phase Filter Tabs ===== */
.phase-tabs {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 32px;
}

.phase-btn {
    padding: 8px 24px;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 100px;
    background: white;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text);
}

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

.phase-btn.active {
    background: rgba(37,99,235,0.08);
    border-color: var(--primary);
    color: var(--primary);
    font-weight: 600;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    padding: 10px 0;
    box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    color: white;
    text-decoration: none;
    font-size: 20px;
    font-weight: 700;
}

.nav-tabs {
    display: flex;
    gap: 4px;
    background: rgba(255,255,255,0.08);
    border-radius: 8px;
    padding: 3px;
}

.nav-tab {
    padding: 6px 14px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: rgba(255,255,255,0.65);
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.nav-tab:hover {
    color: rgba(255,255,255,0.9);
    background: rgba(255,255,255,0.06);
}

.nav-tab.active {
    background: rgba(255,255,255,0.95);
    color: var(--dark);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

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

.nav-links a {
    color: rgba(255,255,255,0.75);
    text-decoration: none;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.nav-links a:hover {
    color: white;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
}

/* ===== Sections ===== */
.section {
    padding: 100px 0;
}

.section-alt {
    background: var(--bg-alt);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 4px 16px;
    border-radius: 100px;
    background: rgba(37, 99, 235, 0.08);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 3px;
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 12px;
}

.section-desc {
    color: var(--text-light);
    font-size: 16px;
    max-width: 500px;
    margin: 0 auto;
}

/* ===== Timeline ===== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 28px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #dc2626, #2563eb, #6b7280);
    opacity: 0.3;
}

.phase-marker {
    position: relative;
    padding-left: 68px;
    margin-left: 0;
    margin-bottom: 24px;
    border-left: 3px solid;
    padding: 8px 0 8px 20px;
}

.phase-dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 8px;
}

.phase-label {
    font-weight: 700;
    font-size: 18px;
    color: var(--dark);
}

.phase-days {
    font-size: 14px;
    color: var(--text-light);
    margin-left: 8px;
}

/* ===== Day Card ===== */
.day-card {
    position: relative;
    margin-bottom: 24px;
    background: white;
    border-radius: var(--radius);
    border: 1px solid rgba(0,0,0,0.06);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.day-card.collapsed .day-card-body {
    display: none;
}

.day-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.day-card-header {
    cursor: pointer;
    user-select: none;
}

.day-header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.collapse-icon {
    font-size: 12px;
    color: var(--text-light);
    transition: transform 0.3s;
    width: 20px;
    text-align: center;
}

.day-card-header {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px 28px;
    background: linear-gradient(135deg, rgba(15,23,42,0.02), transparent);
    border-bottom: 1px solid rgba(0,0,0,0.04);
}

.day-number {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 800;
    color: white;
}

.day-info {
    flex: 1;
    min-width: 0;
}

.day-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    margin-bottom: 6px;
}

.day-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
}

.day-subtitle {
    font-size: 14px;
    color: var(--text-light);
}

.day-distance {
    flex-shrink: 0;
    font-size: 13px;
    color: var(--text-light);
    padding: 6px 12px;
    background: rgba(0,0,0,0.03);
    border-radius: 8px;
    white-space: nowrap;
}

.day-card-body {
    padding: 20px 28px 24px;
}

/* ===== Day Highlights ===== */
.day-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 16px;
}

.highlight-item {
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 14px;
    line-height: 1.5;
}

.highlight-item.transport {
    background: rgba(37, 99, 235, 0.06);
    border: 1px solid rgba(37, 99, 235, 0.12);
}

.highlight-item.cost {
    background: rgba(245, 158, 11, 0.06);
    border: 1px solid rgba(245, 158, 11, 0.12);
}

.hl-icon {
    margin-right: 6px;
    font-size: 16px;
}

/* ===== Details Toggle ===== */
.details-toggle {
    width: 100%;
    padding: 10px 16px;
    background: rgba(0,0,0,0.03);
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.details-toggle:hover {
    background: rgba(0,0,0,0.06);
    color: var(--text);
}

.details-toggle .toggle-arrow {
    font-size: 10px;
    transition: transform 0.3s;
}

.details-toggle.open .toggle-arrow {
    transform: rotate(180deg);
}

.details-content {
    display: none;
    margin-top: 16px;
}

.details-content.open {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.day-desc {
    list-style: none;
    margin-bottom: 20px;
}

.day-desc li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 15px;
    color: var(--text);
    line-height: 1.7;
}

.day-desc li::before {
    content: '·';
    position: absolute;
    left: 4px;
    color: var(--card-color, var(--primary));
    font-weight: 700;
    font-size: 20px;
}

.day-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 8px;
    padding: 16px;
    background: rgba(0,0,0,0.02);
    border-radius: 12px;
    margin-bottom: 12px;
}

.meta-item {
    font-size: 14px;
    color: var(--text);
}

.meta-label {
    font-weight: 600;
    color: var(--text-light);
    margin-right: 4px;
}

.day-tip {
    padding: 12px 16px;
    background: rgba(245, 158, 11, 0.08);
    border-radius: 10px;
    font-size: 14px;
    color: #92400e;
    border: 1px solid rgba(245, 158, 11, 0.15);
}

/* ===== Xi'an Cards ===== */
.city-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.city-card {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    background: white;
}

.city-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.city-card-header {
    padding: 28px;
    color: white;
}

.city-card-header .city-card-day {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 6px;
    background: rgba(255,255,255,0.2);
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
}

.city-card-header h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 6px;
}

.city-card-header p {
    font-size: 14px;
    opacity: 0.85;
}

.city-card-body {
    padding: 24px;
}

.city-card-body ul {
    list-style: none;
    margin-bottom: 16px;
}

.city-card-body ul li {
    padding-left: 20px;
    position: relative;
    margin-bottom: 8px;
    font-size: 15px;
}

.city-card-body ul li::before {
    content: '·';
    position: absolute;
    left: 4px;
    font-weight: 700;
    font-size: 20px;
    color: var(--primary);
}

.city-card-footer {
    font-size: 14px;
    color: var(--text-light);
}

.city-tip {
    margin-top: 8px;
    padding: 10px 14px;
    background: rgba(245, 158, 11, 0.08);
    border-radius: 8px;
    color: #92400e;
    font-size: 13px;
}

/* ===== Route Map ===== */
.route-map {
    margin-bottom: 48px;
    background: white;
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0,0,0,0.06);
}

.route-svg {
    max-width: 700px;
    margin: 0 auto;
}

.route-path {
    animation: dashMove 20s linear infinite;
}

@keyframes dashMove {
    to {
        stroke-dashoffset: -1000;
    }
}

.route-dot {
    cursor: pointer;
    transition: r 0.3s ease;
}

.route-dot:hover {
    r: 10;
}

.route-label {
    fill: var(--text);
    font-weight: 500;
}

/* ===== Info Grid ===== */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.info-card {
    background: white;
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0,0,0,0.06);
    transition: var(--transition);
}

.info-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.info-icon {
    font-size: 36px;
    margin-bottom: 16px;
}

.info-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
}

.info-card ul {
    list-style: none;
}

.info-card ul li {
    position: relative;
    padding-left: 16px;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text);
    line-height: 1.6;
}

.info-card ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* ===== Schedule Timeline ===== */
.day-schedule {
    position: relative;
    margin: 20px 0;
    padding-left: 28px;
}

.day-schedule::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 4px;
    bottom: 4px;
    width: 2px;
    background: linear-gradient(to bottom, var(--card-color, var(--primary)), rgba(37,99,235,0.1));
    border-radius: 2px;
}

.schedule-item {
    position: relative;
    margin-bottom: 16px;
    padding: 12px 16px;
    background: rgba(0,0,0,0.02);
    border-radius: 10px;
    border-left: 3px solid var(--card-color, var(--primary));
    transition: var(--transition);
}

.schedule-item:hover {
    background: rgba(0,0,0,0.04);
}

.schedule-dot {
    position: absolute;
    left: -24px;
    top: 16px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--card-color, var(--primary));
    border: 2px solid white;
    box-shadow: 0 0 0 2px var(--card-color, var(--primary));
}

.schedule-time {
    font-size: 13px;
    font-weight: 600;
    color: var(--card-color, var(--primary));
    margin-bottom: 4px;
}

.schedule-content strong {
    display: block;
    font-size: 15px;
    color: var(--dark);
    margin-bottom: 2px;
}

.schedule-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

/* ===== Food Tags ===== */
.food-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.food-tag {
    padding: 4px 12px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.08));
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 20px;
    font-size: 13px;
    color: #92400e;
    transition: var(--transition);
}

.food-tag:hover {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(239, 68, 68, 0.15));
    transform: translateY(-1px);
}

/* ===== Spot Detail Collapsible ===== */
.spot-detail {
    margin-bottom: 16px;
}

.spot-toggle {
    width: 100%;
    padding: 10px 16px;
    background: rgba(37, 99, 235, 0.06);
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: 10px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition);
}

.spot-toggle:hover {
    background: rgba(37, 99, 235, 0.1);
}

.spot-toggle .toggle-arrow {
    transition: transform 0.3s ease;
    font-size: 12px;
}

.spot-toggle.open .toggle-arrow {
    transform: rotate(180deg);
}

.spot-body {
    display: none;
    padding: 16px;
    background: rgba(0,0,0,0.02);
    border-radius: 0 0 10px 10px;
    border: 1px solid rgba(0,0,0,0.06);
    border-top: none;
    font-size: 14px;
    line-height: 1.8;
    color: var(--text);
    white-space: pre-line;
}

.spot-body.open {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cost-note {
    margin-top: 16px;
    padding: 12px 16px;
    background: rgba(37, 99, 235, 0.04);
    border-radius: 10px;
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
}

.cost-table .cost-row {
    padding: 8px 0;
}

/* ===== Cost Calculator ===== */
.cost-calculator {
    max-width: 700px;
    margin: 0 auto;
}

.cost-section {
    background: white;
    border-radius: var(--radius);
    padding: 24px 28px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0,0,0,0.06);
}

.cost-section-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid rgba(0,0,0,0.06);
}

.cost-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0,0,0,0.04);
}

.cost-row:last-child {
    border-bottom: none;
}

.cost-row.fixed {
    opacity: 0.85;
}

.cost-label {
    flex: 1;
    font-size: 15px;
    color: var(--text);
    line-height: 1.4;
}

.cost-label small {
    display: block;
    font-size: 12px;
    color: var(--text-light);
    font-weight: 400;
}

.cost-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    white-space: nowrap;
}

.cost-value.refund {
    color: #16a34a;
}

.cost-value.highlight {
    color: var(--primary);
    font-size: 18px;
}

.cost-row.total {
    background: rgba(37, 99, 235, 0.04);
    padding: 12px 16px;
    margin: 8px -16px -8px;
    border-radius: 10px;
    border-bottom: none;
}

.cost-input {
    width: 120px;
    padding: 8px 12px;
    border: 2px solid rgba(0,0,0,0.1);
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    font-family: inherit;
    text-align: right;
    color: var(--dark);
    transition: var(--transition);
    outline: none;
}

.cost-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.cost-unit {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
    min-width: 24px;
}

.cost-result {
    background: linear-gradient(135deg, #1e293b, #0f172a);
    border-radius: var(--radius);
    padding: 28px;
    margin-top: 8px;
}

.cost-result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.result-item {
    text-align: center;
    padding: 16px;
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.08);
}

.result-item.total {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.15);
}

.result-label {
    display: block;
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 8px;
    font-weight: 500;
}

.result-value {
    font-size: 20px;
    font-weight: 700;
    color: white;
}

.result-value.highlight {
    color: #60a5fa;
}

.result-value.big {
    font-size: 28px;
}

.result-value.accent {
    color: #fbbf24;
    font-size: 28px;
}

@media (max-width: 600px) {
    .cost-row {
        flex-wrap: wrap;
    }
    .cost-input {
        width: 100px;
    }
    .cost-result-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    .result-value.big,
    .result-value.accent {
        font-size: 22px;
    }
    .cost-section {
        padding: 18px;
    }
}

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: white;
    text-align: center;
    padding: 48px 24px;
}

.footer-text {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.footer-sub {
    font-size: 14px;
    color: rgba(255,255,255,0.5);
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.day-card, .city-card {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.6s ease forwards;
}

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

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .hero {
        min-height: 500px;
    }

    .hero-stats {
        gap: 20px;
    }

    .stat-num {
        font-size: 2rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        flex-direction: column;
        padding: 16px 24px;
        gap: 16px;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-tabs {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: 8px;
        padding-top: 8px;
        border-top: 1px solid rgba(255,255,255,0.1);
    }

    .nav-inner {
        flex-wrap: wrap;
    }

    .nav-toggle {
        display: block;
    }

    .section {
        padding: 60px 0;
    }

    .day-card-header {
        flex-wrap: wrap;
        padding: 20px;
    }

    .day-card-body {
        padding: 16px 20px 20px;
    }

    .day-highlights {
        grid-template-columns: 1fr;
    }

    .day-distance {
        width: 100%;
        text-align: center;
    }

    .day-meta {
        grid-template-columns: 1fr;
    }

    .city-cards {
        grid-template-columns: 1fr;
    }

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

    .route-map {
        padding: 16px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        letter-spacing: 2px;
    }

    .day-number {
        width: 44px;
        height: 44px;
        font-size: 16px;
    }
}