:root {
    --bg: #f0f7fa;
    --surface: #ffffff;
    --surface-strong: #ffffff;
    --surface-dark: #d4e9f2;
    --ink: #1a2e3f;
    --muted: #4a6a7a;
    --accent: #ffb347;
    --accent-deep: #e8902a;
    --ocean: #1a8b9e;
    --ocean-light: #b3d9e6;
    --sand: #f5e6d3;
    --line: rgba(26, 46, 63, 0.12);
    --shadow: 0 16px 48px rgba(26, 46, 63, 0.12);
    --radius: 16px;
    --radius-lg: 24px;
    --success: #2a9d8f;
    --error: #e74c3c;
}
[data-theme="dark"] {
    --bg: #0d1b2a;
    --surface: #1b2d3f;
    --surface-strong: #253b4f;
    --surface-dark: #0f1f2e;
    --ink: #e8f0f5;
    --muted: #9ab0c0;
    --accent: #ffb85c;
    --accent-deep: #f5a03a;
    --ocean: #3aa8c9;
    --ocean-light: #1f4a5a;
    --sand: #2d241a;
    --line: rgba(232, 240, 245, 0.15);
    --shadow: 0 16px 48px rgba(0,0,0,0.5);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: "Segoe UI", "Helvetica Neue", sans-serif;
    color: var(--ink);
    padding-top: 56px;
    background:
        radial-gradient(circle at top right, rgba(26, 139, 158, 0.12), transparent 28rem),
        radial-gradient(circle at left bottom, rgba(255, 179, 71, 0.08), transparent 24rem),
        var(--bg);
    line-height: 1.55;
    overflow-x: hidden;
    min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }
.container { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }

/* ===== HEADER (used by imported navbar) ===== */
.site-header {
    position: sticky; top: 0; z-index: 20;
    backdrop-filter: blur(10px);
    background: var(--surface-strong);
    border-bottom: 1px solid var(--line);
}
[data-theme="dark"] .site-header { background: rgba(13, 27, 42, 0.92); }
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    gap: 1rem; min-height: 72px;
}
.brand {
    display: inline-flex; align-items: center;
    font-size: 1.35rem; font-weight: 800; letter-spacing: 0.03em;
    white-space: nowrap; color: var(--ink);
}
.brand-with-mark { display: inline-flex; align-items: center; gap: 0.7rem; }
.brand-mark {
    display: inline-grid; place-items: center;
    width: clamp(38px, 5vw, 44px); height: clamp(38px, 5vw, 44px);
    max-width: 44px; max-height: 44px;
    border-radius: clamp(11px,1.6vw,14px);
    overflow: hidden; flex: 0 0 auto;
    box-shadow: 0 10px 24px rgba(16,34,45,0.16);
}
.brand-mark img { display: block; width: 100%; height: 100%; object-fit: cover; border-radius: inherit; }
.top-nav {
    display: flex; align-items: center; gap: 1.1rem;
    color: var(--muted);
}
.top-nav a {
    position: relative; padding: 0.25rem 0; transition: color 160ms ease;
    color: var(--muted);
}
.top-nav a::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: -0.55rem;
    height: 2px; border-radius: 999px; background: var(--accent-deep);
    opacity: 0; transform: scaleX(0.4); transition: opacity 180ms, transform 180ms;
}
.top-nav a.is-active { color: var(--ink); }
.top-nav a.is-active::after { opacity: 1; transform: scaleX(1); }
.top-nav a:hover { color: var(--accent-deep); }
.menu-toggle {
    display: none; width: 48px; height: 48px; border: 1px solid var(--line);
    border-radius: 14px; background: var(--surface-strong);
    align-items: center; justify-content: center; flex-direction: column; gap: 5px; cursor: pointer;
}
.menu-toggle span { display: block; width: 20px; height: 2px; border-radius: 999px; background: var(--ink); }
.theme-toggle {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.75rem 0.9rem; border: 1px solid var(--line);
    border-radius: 14px; background: var(--surface-strong); color: var(--ink);
    cursor: pointer; font: inherit;
}
.theme-toggle-icon { font-size: 1rem; line-height: 1; }

/* ===== TOP CTA STRIP ===== */
.top-cta-strip {
    position: fixed; top: 72px; left: 0; right: 0; z-index: 19;
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,0.15);
    display: flex; justify-content: center;
    padding: 0.6rem 1rem;
    transition: transform 0.4s ease, opacity 0.4s ease;
}
.top-cta-strip-inner {
    display: flex; gap: 0.8rem; align-items: center;
    max-width: 900px; width: 100%; justify-content: space-between;
}
.top-cta-strip a {
    padding: 0.4rem 1.2rem; border-radius: 12px;
    background: linear-gradient(135deg, var(--accent-deep), var(--accent));
    color: white; font-weight: 600; white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
.top-cta-strip.is-hidden { transform: translateY(-100%); opacity: 0; pointer-events: none; }

/* ===== FOOTER (used by imported footer) ===== */
.site-footer { padding: 2rem 0 2.5rem; border-top: 1px solid var(--line); background: var(--surface); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 0.9fr 0.9fr; gap: 1.5rem; }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; color: var(--muted); }
.footer-links a { color: var(--muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--accent-deep); }
.footer-meta { margin-top: 1.5rem; color: var(--muted); }

/* ---------- HERO ---------- */
.hero {
    padding: 5rem 0 3rem;
    text-align: center;
    background: var(--surface-dark);
    border-bottom: 1px solid var(--line);
    position: relative;
    overflow: hidden;
}
.hero::after {
    content: "🌊";
    position: absolute;
    right: -30px;
    bottom: -30px;
    font-size: 10rem;
    opacity: 0.06;
    transform: rotate(-6deg);
}
.hero .eyebrow {
    display: inline-block;
    background: var(--accent);
    color: var(--ink);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}
.hero h1 {
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 0.8rem;
    color: var(--ink);
}
.hero h1 .highlight { color: var(--accent-deep); }
.hero p {
    color: var(--muted);
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 1.5rem;
}
.hero .actions { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.hero .btn-hero {
    padding: 0.9rem 2.8rem; border-radius: 50px;
    font-size: 1.1rem; font-weight: 600; border: none; cursor: pointer;
    transition: all 0.3s;
}
.btn-primary-hero { background: var(--accent); color: var(--ink); }
.btn-primary-hero:hover { background: var(--accent-deep); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 30px rgba(232,144,42,0.3); }
.btn-secondary-hero { background: transparent; color: var(--ink); border: 2px solid var(--line); }
.btn-secondary-hero:hover { border-color: var(--accent); background: var(--surface-strong); }

/* ---------- WIZARD ---------- */
.wizard-section { padding: 3rem 0 4rem; background: var(--bg); }
.wizard-container {
    max-width: 780px; margin: 0 auto;
    background: var(--surface); border-radius: var(--radius-lg);
    border: 1px solid var(--line); box-shadow: var(--shadow);
    padding: 2rem 2.5rem;
}
.wizard-progress {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 2rem; position: relative;
}
.wizard-progress .step-dot {
    display: flex; flex-direction: column; align-items: center;
    gap: 0.3rem; font-size: 0.75rem; color: var(--muted); flex: 1; position: relative;
}
.wizard-progress .step-dot::before {
    content: ""; position: absolute; top: 14px; left: -50%; right: 50%;
    height: 2px; background: var(--line); z-index: 0;
}
.wizard-progress .step-dot:first-child::before { display: none; }
.wizard-progress .step-dot .circle {
    width: 30px; height: 30px; border-radius: 50%;
    background: var(--bg); border: 2px solid var(--line);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; color: var(--muted); z-index: 1;
    transition: all 0.3s;
}
.wizard-progress .step-dot.active .circle { background: var(--accent); border-color: var(--accent); color: var(--ink); }
.wizard-progress .step-dot.completed .circle { background: var(--success); border-color: var(--success); color: #fff; }
.wizard-progress .step-dot .label { text-align: center; font-weight: 500; }
.wizard-step { display: none; animation: fadeIn 0.35s ease; }
.wizard-step.active { display: block; }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}
.wizard-step h2 { font-size: 1.6rem; margin-bottom: 0.3rem; color: var(--ink); }
.wizard-step .sub { color: var(--muted); margin-bottom: 1.5rem; }
.card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1rem 0; }
.card-grid.three { grid-template-columns: 1fr 1fr 1fr; }
.card-grid.four { grid-template-columns: 1fr 1fr 1fr 1fr; }
.choice-card {
    background: var(--bg); border: 2px solid var(--line); border-radius: var(--radius);
    padding: 1.2rem 1rem; text-align: center; cursor: pointer;
    transition: all 0.25s; display: flex; flex-direction: column; align-items: center; gap: 0.3rem;
}
.choice-card:hover { border-color: var(--accent); }
.choice-card.selected { border-color: var(--accent-deep); background: var(--surface-strong); box-shadow: 0 0 0 3px rgba(255,179,71,0.2); }
.choice-card .icon { font-size: 2.2rem; }
.choice-card .label { font-weight: 600; font-size: 0.95rem; color: var(--ink); }
.choice-card .desc { font-size: 0.8rem; color: var(--muted); }
.chip-grid { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 0.5rem 0 1rem; }
.chip {
    padding: 0.5rem 1.2rem; border-radius: 30px; border: 2px solid var(--line);
    background: var(--bg); cursor: pointer; transition: all 0.25s;
    font-weight: 500; font-size: 0.9rem; color: var(--muted);
}
.chip:hover { border-color: var(--accent); }
.chip.selected { border-color: var(--accent-deep); background: var(--accent); color: var(--ink); }
.budget-slider { width: 100%; margin: 1rem 0; }
.budget-slider input[type="range"] {
    width: 100%; height: 6px; border-radius: 10px; background: var(--line);
    outline: none; -webkit-appearance: none;
}
.budget-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%;
    background: var(--accent); cursor: pointer; border: 2px solid var(--surface-strong);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.budget-labels { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--muted); }
.budget-value { text-align: center; font-size: 1.8rem; font-weight: 700; color: var(--accent-deep); margin: 0.2rem 0; }
.btn {
    padding: 0.8rem 2rem; border-radius: 12px; border: none;
    font-weight: 600; font-size: 1rem; cursor: pointer; transition: all 0.3s;
    display: inline-flex; align-items: center; gap: 0.5rem;
}
.btn-primary { background: var(--accent); color: var(--ink); }
.btn-primary:hover { background: var(--accent-deep); color: #fff; transform: translateY(-2px); box-shadow: 0 4px 20px rgba(232,144,42,0.3); }
.btn-secondary { background: var(--surface-strong); color: var(--ink); border: 1px solid var(--line); }
.btn-secondary:hover { border-color: var(--accent); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #21867a; transform: translateY(-2px); }
.btn-pdf { background: #d32f2f; color: #fff; }
.btn-pdf:hover { background: #b71c1c; transform: translateY(-2px); }
.btn-group { display: flex; gap: 1rem; margin-top: 1.5rem; flex-wrap: wrap; }
.spinner {
    width: 20px; height: 20px; border: 2px solid var(--line);
    border-top-color: var(--accent); border-radius: 50%;
    animation: spin 0.8s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }
.notification { padding: 0.8rem 1.2rem; border-radius: 12px; margin-bottom: 1rem; display: none; }
.notification.show { display: block; }
.notification.success { background: rgba(42,157,143,0.12); border: 1px solid rgba(42,157,143,0.25); color: var(--success); }
.notification.error { background: rgba(231,76,60,0.12); border: 1px solid rgba(231,76,60,0.25); color: var(--error); }
.notification.info { background: rgba(255,179,71,0.12); border: 1px solid rgba(255,179,71,0.25); color: var(--accent-deep); }
.generation-messages { margin: 1.5rem 0; }
.gen-msg {
    display: flex; align-items: center; gap: 0.8rem; padding: 0.5rem 0;
    opacity: 0; transform: translateX(-10px); transition: all 0.4s ease;
}
.gen-msg.show { opacity: 1; transform: translateX(0); }
.gen-msg .icon { font-size: 1.2rem; }
.gen-msg .text { color: var(--ink); }
.itinerary-container { margin-top: 0.5rem; }
.itinerary-header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; margin-bottom: 1.5rem; gap: 1rem; }
.itinerary-header h2 { font-size: 1.6rem; font-weight: 700; margin: 0; color: var(--ink); }
.itinerary-header .badge { display: inline-flex; align-items: center; gap: 0.4rem; background: var(--surface-dark); padding: 0.3rem 1rem; border-radius: 20px; font-size: 0.85rem; color: var(--muted); }
.day-card { background: var(--surface-strong); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem 1.5rem; margin-bottom: 1.2rem; transition: all 0.3s; }
.day-card:hover { border-color: var(--accent); box-shadow: 0 4px 16px rgba(0,0,0,0.04); }
.day-card .day-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.8rem; flex-wrap: wrap; gap: 0.5rem; }
.day-card .day-title { font-size: 1.15rem; font-weight: 700; color: var(--ink); }
.day-card .day-date { color: var(--muted); font-size: 0.85rem; background: var(--bg); padding: 0.2rem 0.8rem; border-radius: 30px; }
.activity-item { display: flex; gap: 1rem; padding: 0.5rem 0; border-bottom: 1px solid var(--line); }
.activity-item:last-child { border-bottom: none; }
.activity-time { font-weight: 600; color: var(--ocean); min-width: 80px; font-size: 0.85rem; }
.activity-desc { flex: 1; }
.activity-desc .name { font-weight: 600; color: var(--ink); }
.activity-desc .detail { color: var(--muted); font-size: 0.85rem; }
.activity-desc .detail a { color: var(--ocean); text-decoration: underline; font-weight: 600; }
.activity-desc .detail a:hover { color: var(--accent-deep); }
.activity-agent { font-size: 0.7rem; color: var(--muted); background: var(--bg); padding: 0.1rem 0.6rem; border-radius: 10px; display: inline-block; margin-top: 0.2rem; }
.recommendation-card { background: var(--bg); border-radius: 12px; padding: 0.8rem 1rem; margin: 0.6rem 0 0.6rem 2.5rem; border-left: 3px solid var(--accent); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.8rem; }
.recommendation-card .rec-info { display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap; }
.recommendation-card .rec-icon { font-size: 1.4rem; }
.recommendation-card .rec-name { font-weight: 600; color: var(--ink); }
.recommendation-card .rec-detail { color: var(--muted); font-size: 0.85rem; }
.recommendation-card .rec-rating { color: var(--accent-deep); font-weight: 600; }
.recommendation-card .rec-price { color: var(--ink); font-weight: 700; }
.rec-btn { padding: 0.3rem 1rem; border-radius: 20px; border: 1px solid var(--accent); background: transparent; color: var(--accent-deep); font-weight: 600; font-size: 0.8rem; cursor: pointer; transition: all 0.3s; white-space: nowrap; }
.rec-btn:hover { background: var(--accent); color: var(--ink); }
.rec-btn.primary { background: var(--accent); color: var(--ink); border-color: var(--accent); }
.rec-btn.primary:hover { background: var(--accent-deep); color: #fff; }
.flight-section { background: var(--surface-strong); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem 1.5rem; margin-top: 1.5rem; }
.flight-section h4 { font-size: 0.9rem; color: var(--muted); margin: 0 0 0.5rem; display: flex; align-items: center; gap: 0.5rem; }
.flight-route { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.flight-route .airport { font-weight: 600; color: var(--ink); }
.flight-route .arrow { color: var(--muted); font-size: 1.2rem; }
.flight-route .date { color: var(--muted); font-size: 0.85rem; }
.share-section { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.share-buttons { display: flex; gap: 0.8rem; flex-wrap: wrap; }
.share-btn { padding: 0.4rem 1.2rem; border-radius: 20px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); cursor: pointer; transition: all 0.3s; font-size: 0.85rem; }
.share-btn:hover { border-color: var(--accent); background: var(--surface-strong); }
.ai-assistant {
    position: fixed; bottom: 28px; right: 28px; z-index: 50;
    display: flex; align-items: center; gap: 0.6rem;
    background: var(--surface-strong); border: 1px solid var(--line);
    border-radius: 40px; padding: 0.6rem 1.2rem 0.6rem 0.6rem;
    box-shadow: var(--shadow); cursor: pointer; transition: all 0.3s;
}
.ai-assistant:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(0,0,0,0.15); }
.ai-assistant .avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; }
.ai-assistant .label { font-weight: 600; color: var(--ink); }
.ai-assistant .sub { font-size: 0.7rem; color: var(--muted); }

/* ---------- CHAT MODAL ---------- */
.chat-modal-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5); backdrop-filter: blur(4px);
    z-index: 100; display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; transition: opacity 0.3s, visibility 0.3s;
}
.chat-modal-overlay.open { opacity: 1; visibility: visible; }
.chat-modal { width: min(420px, 90vw); max-height: 80vh; background: var(--surface-strong); border-radius: var(--radius-lg); border: 1px solid var(--line); box-shadow: var(--shadow); display: flex; flex-direction: column; overflow: hidden; }
.chat-header { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.2rem; border-bottom: 1px solid var(--line); background: var(--surface); }
.chat-header h3 { margin: 0; font-size: 1.1rem; color: var(--ink); }
.chat-close { background: none; border: none; color: var(--muted); font-size: 1.4rem; cursor: pointer; padding: 0.2rem; line-height: 1; }
.chat-messages { flex: 1; overflow-y: auto; padding: 1rem; display: flex; flex-direction: column; gap: 0.8rem; }
.chat-message { display: flex; gap: 0.6rem; max-width: 85%; }
.chat-message.user { align-self: flex-end; flex-direction: row-reverse; }
.chat-message .bubble { padding: 0.7rem 1rem; border-radius: 1.2rem; background: var(--bg); color: var(--ink); font-size: 0.9rem; line-height: 1.4; }
.chat-message.user .bubble { background: var(--accent); color: var(--ink); }
.chat-message .avatar-icon { font-size: 1.5rem; align-self: flex-end; }
.chat-input-area { display: flex; gap: 0.5rem; padding: 0.8rem 1rem; border-top: 1px solid var(--line); background: var(--surface); }
.chat-input-area input { flex: 1; padding: 0.7rem 1rem; border-radius: 20px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); font: inherit; outline: none; }
.chat-input-area button { background: var(--accent); border: none; color: var(--ink); border-radius: 50%; width: 42px; height: 42px; display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 1.2rem; transition: background 0.2s; }
.chat-input-area button:hover { background: var(--accent-deep); color: white; }
.chat-input-area button:disabled { opacity: 0.5; cursor: not-allowed; }
.typing-indicator { display: flex; gap: 0.4rem; padding: 0.7rem 1rem; align-items: center; }
.typing-indicator span { width: 8px; height: 8px; background: var(--muted); border-radius: 50%; animation: typing 1.4s infinite ease-in-out; }
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing { 0%, 60%, 100% { transform: translateY(0); } 30% { transform: translateY(-8px); } }
.chat-message .bubble ul, .chat-message .bubble ol { margin: 0.3rem 0 0.3rem 1rem; padding-left: 1rem; }
.chat-message .bubble li { margin-bottom: 0.15rem; }
.chat-message .bubble a { color: var(--ocean); text-decoration: underline; font-weight: 600; }
.chat-message .bubble a:hover { color: var(--accent-deep); }

/* ---------- SOLO OPTIONS ---------- */
.solo-options { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.solo-options h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 1rem; color: var(--ink); }
.solo-options .option-group { margin-bottom: 1rem; }
.solo-options .option-group label { display: block; font-weight: 500; font-size: 0.9rem; margin-bottom: 0.3rem; color: var(--muted); }
.solo-options .radio-group { display: flex; gap: 1rem; flex-wrap: wrap; }
.solo-options .radio-group label { display: flex; align-items: center; gap: 0.3rem; font-weight: normal; color: var(--ink); cursor: pointer; }
.solo-options .radio-group input[type="radio"] { accent-color: var(--accent); }

/* ---------- FAQ ---------- */
.faq-section { padding: 4rem 0; background: var(--surface); border-top: 1px solid var(--line); }
.faq-section h2 { text-align: center; font-size: 2rem; color: var(--ink); margin-bottom: 2.5rem; }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 1.5rem; }
.faq-item { background: var(--bg); border-radius: var(--radius); padding: 1.2rem 1.5rem; border: 1px solid var(--line); }
.faq-question { font-weight: 700; font-size: 1.1rem; color: var(--ocean); margin-bottom: 0.4rem; }
.faq-answer { color: var(--muted); font-size: 0.95rem; line-height: 1.5; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.2rem; }
    .wizard-container { padding: 1.5rem 1.2rem; }
    .wizard-progress .step-dot .label { display: none; }
    .card-grid, .card-grid.three, .card-grid.four { grid-template-columns: 1fr 1fr; }
    .recommendation-card { margin-left: 0; flex-direction: column; align-items: stretch; }
    .btn-group { flex-direction: column; }
    .btn-group .btn { width: 100%; justify-content: center; }
    .itinerary-header { flex-direction: column; align-items: flex-start; }
    .activity-item { flex-wrap: wrap; }
    .activity-time { min-width: 60px; }
}
@media (max-width: 480px) {
    .hero { padding: 2.5rem 0 2rem; }
    .hero h1 { font-size: 1.8rem; }
    .wizard-container { padding: 1rem; }
    .card-grid, .card-grid.three, .card-grid.four { grid-template-columns: 1fr; }
    .choice-card { padding: 0.8rem; }
    .chip { font-size: 0.8rem; padding: 0.4rem 1rem; }
    .day-card { padding: 1rem; }
    .ai-assistant { bottom: 16px; right: 16px; padding: 0.4rem 1rem 0.4rem 0.4rem; }
    .ai-assistant .label { display: none; }
    .chat-modal { width: 100vw; height: 100vh; max-height: 100vh; border-radius: 0; }
}