@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    --primary: #000000;
    --primary-dark: #222222;
    --accent: #222222;
    --bg-color: #ffffff;
    --panel-bg: #ffffff;
    --gray-100: #fafafa;
    --gray-200: #f1f1f1;
    --gray-300: #e5e5e5;
    --gray-500: #888888;
    --text-main: #111111;
    --text-sec: #666666;
    --success: #000000; 
    --danger: #ff3b30;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0,0,0,0.03);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.05);
    --border-color: #eaeaea;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--gray-100);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ====== HERO ====== */
.hero {
    position: relative;
    padding: 100px 20px 80px;
    text-align: center;
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
}
.hero h1 {
    font-size: 44px;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 12px;
    color: var(--text-main);
}
.hero p {
    font-size: 16px;
    color: var(--text-sec);
    font-weight: 400;
    letter-spacing: -0.2px;
}

/* ====== QUERY PANEL ====== */
.container { max-width: 800px; margin: -40px auto 60px; padding: 0 20px; position: relative; z-index: 10; }

.query-panel {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

/* Section blocks */
.section-block { margin-bottom: 32px; }
.section-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-sec);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.loading-text { color: var(--text-sec); font-size: 13px; }

/* Button Group */
.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.btn-group .pick-btn {
    padding: 12px 24px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-sec);
    font-size: 14px;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}
.btn-group .pick-btn:hover {
    border-color: var(--text-main);
    color: var(--text-main);
}
.btn-group .pick-btn.active {
    background: var(--text-main);
    border-color: var(--text-main);
    color: #fff;
}

/* Day Grid */
.day-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
    gap: 8px;
}
.day-grid .pick-btn {
    padding: 12px 0;
    text-align: center;
    font-size: 14px;
    border-radius: 8px;
}

/* Animate day section */
#daySection {
    animation: fadeUp 0.3s ease;
}

.btn-query {
    width: 100%;
    padding: 18px 36px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.1s ease;
    margin-top: 10px;
}
.btn-query:hover {
    background: var(--primary-dark);
}
.btn-query:active { transform: scale(0.99); }
.btn-query.loading { pointer-events: none; opacity: 0.7; }

/* ====== RESULTS ====== */
.results { margin-top: 40px; display: none; }
.results.show { display: block; animation: fadeUp 0.4s ease forwards; }
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Total Price Card */
.price-card {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    margin-bottom: 32px;
    box-shadow: var(--shadow);
}
.price-card .label { font-size: 12px; color: var(--text-sec); margin-bottom: 16px; font-weight: 600; letter-spacing: 0.8px; text-transform:uppercase; }
.price-card .price-range {
    font-size: 48px;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -2px;
}
.price-card .unit { font-size: 14px; color: var(--text-sec); margin-top: 6px; }
.price-card .pkg-info {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-200);
    font-size: 14px;
    color: var(--text-sec);
}

/* Multi-person price rows */
.price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-200);
}
.price-row:last-child { border-bottom: none; }
.price-row .people-label {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}
.price-row .people-icon {
    font-size: 18px;
}
.price-row .people-price {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.5px;
}
.price-row .people-price.green {
    color: var(--text-main);
}

/* Breakdown */
.breakdown { display: flex; flex-direction: column; gap: 16px; padding-bottom: 60px; }

.breakdown-card {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}
.breakdown-header {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    cursor: pointer;
    background: var(--panel-bg);
    transition: background 0.2s;
}
.breakdown-header:hover { background: var(--gray-100); }
.breakdown-header .title {
    font-size: 15px; font-weight: 600;
    display: flex; align-items: center; gap: 12px; color: var(--text-main);
}
.breakdown-header .title svg.icon {
    width: 20px;
    height: 20px;
    color: var(--text-main);
    stroke-width: 1.5;
}
.breakdown-header .subtitle { text-align: center; min-width: 140px; font-size: 15px; font-weight: 600; color: var(--text-main); }
.breakdown-header .arrow {
    transition: transform 0.3s;
    color: var(--text-sec);
    font-weight: 400;
}
.breakdown-card.open .arrow { transform: rotate(180deg); }

.breakdown-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.breakdown-card.open .breakdown-body { max-height: 1500px; }
.breakdown-content {
    padding: 0 24px 20px;
}
.detail-row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 12px 0;
    font-size: 14px;
    border-bottom: 1px dashed var(--gray-200);
}
.detail-row:last-child { border-bottom: none; }
.detail-row .detail-label { color: var(--text-sec); }
.detail-row .detail-value { font-weight: 600; color: var(--text-main); }
.detail-row .detail-value.highlight { color: var(--text-main); }

/* ====== CUSTOM HOTEL SELECT ====== */
.hotel-select-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    gap: 16px;
    border-bottom: 1px solid var(--gray-200);
}
.hotel-select-row:last-child { border-bottom: none; }
.hotel-select-row .night-label {
    font-size: 14px;
    color: var(--text-sec);
    white-space: nowrap;
    min-width: 130px;
}
.hotel-select-row select {
    flex: 1;
    padding: 10px 16px;
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    color: var(--text-main);
    font-size: 14px;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: all 0.2s;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 12 12'%3E%3Cpath fill='%23666666' d='M6 8.825L.35 3.175l.7-.7L6 7.425l4.95-4.95.7.7z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
    cursor: pointer;
}
.hotel-select-row select:focus {
    border-color: var(--text-main);
    background-color: var(--bg-color);
}
.hotel-select-row .select-price {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    min-width: 80px;
    text-align: right;
}
.custom-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0 8px;
    margin-top: 8px;
    border-top: 1px solid var(--gray-200);
    font-size: 14px;
}
.custom-total-row .detail-label { color: var(--text-main); font-weight: 500; }
.custom-total-row .detail-value { font-weight: 700; color: var(--text-main); font-size: 15px; }

/* Custom Price Card */
.custom-price-card {
    background: var(--gray-100);
    border: 1px solid var(--border-color);
    margin-bottom: 32px;
    box-shadow: none;
}
.custom-price-card .price-range {
    color: var(--text-main);
}

/* ====== ERROR ====== */
.error-msg {
    background: #fff;
    border: 1px solid var(--danger);
    border-radius: 8px;
    padding: 16px 20px;
    color: var(--danger);
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    margin-top: 24px;
    display: none;
}
.error-msg.show { display: block; animation: fadeUp 0.3s ease; }

/* ====== FOOTER ====== */
.footer {
    text-align: center;
    padding: 60px 20px 40px;
    color: var(--text-sec);
    font-size: 13px;
    background: var(--gray-100);
}

/* ====== RESPONSIVE ====== */
@media (max-width: 600px) {
    .hero { padding: 60px 20px 40px; }
    .hero h1 { font-size: 32px; letter-spacing: -1px; }
    .price-card .price-range { font-size: 36px; }
    .query-panel { padding: 24px; }
    .day-grid { grid-template-columns: repeat(7, 1fr); gap: 6px; }
    .day-grid .pick-btn { padding: 10px 0; font-size: 13px; }
    .breakdown-header { padding: 16px 20px; gap: 12px; }
    .breakdown-header .title { font-size: 14px; }
    .breakdown-header .subtitle { font-size: 14px; min-width: auto; flex: 1; text-align: right; margin-right: 8px; }
    .container { margin-top: 0; padding: 0; }
    .query-panel { border-radius: 0; border: none; border-bottom: 1px solid var(--border-color); box-shadow: none; }
}

/* ====== THEME TOGGLE BUTTON ====== */
.theme-toggle {
    position: absolute;
    top: 24px;
    right: 24px;
    z-index: 1000;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-main);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--panel-bg);
    box-shadow: var(--shadow);
}
.theme-toggle:hover {
    transform: scale(1.08) rotate(15deg);
    box-shadow: 0 6px 16px rgba(0,0,0,0.08);
}
.theme-toggle svg { stroke-width: 1.5; }

/* ====== GORGEOUS THEME (.theme-gorgeous) ====== */
body.theme-gorgeous {
    --primary: #8b5cf6;
    --primary-dark: #7c3aed;
    --accent: #ec4899;
    --bg-color: #0f172a;
    --panel-bg: rgba(30, 41, 59, 0.6);
    --gray-100: #1e293b;
    --gray-200: #334155;
    --gray-300: #475569;
    --gray-500: #94a3b8;
    --text-main: #ffffff;
    --text-sec: #cbd5e1;
    --success: #10b981; 
    --danger: #ef4444;
    --border-color: rgba(255,255,255,0.1);
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    color: var(--text-main);
}

body.theme-gorgeous .hero {
    background: transparent;
    border-bottom: none;
    position: relative;
    overflow: hidden;
}
body.theme-gorgeous .hero::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(139,92,246,0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(236,72,153,0.12) 0%, transparent 40%);
    animation: authFloat 20s ease-in-out infinite;
    z-index: 0;
    pointer-events: none;
}
@keyframes authFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-2%, 2%) scale(1.05); }
}
body.theme-gorgeous .hero h1, body.theme-gorgeous .hero p { position: relative; z-index: 1; }
body.theme-gorgeous .hero h1 {
    background: linear-gradient(to right, #a78bfa, #f472b6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 20px rgba(236,72,153,0.15);
}

body.theme-gorgeous .query-panel, body.theme-gorgeous .price-card, body.theme-gorgeous .breakdown-card {
    background: var(--panel-bg);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

body.theme-gorgeous .btn-group .pick-btn {
    background: rgba(15, 23, 42, 0.4);
    border-color: rgba(255,255,255,0.06);
}
body.theme-gorgeous .btn-group .pick-btn:hover {
    border-color: var(--primary);
    background: rgba(139,92,246,0.1);
    color: #fff;
    box-shadow: 0 0 16px rgba(139,92,246,0.2);
}
body.theme-gorgeous .btn-group .pick-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 20px rgba(236,72,153,0.3);
}

body.theme-gorgeous .btn-query {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-color: transparent;
    box-shadow: 0 8px 25px rgba(236,72,153,0.25);
}
body.theme-gorgeous .btn-query:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(236,72,153,0.4);
}

body.theme-gorgeous .price-card .price-range, body.theme-gorgeous .people-price {
    background: linear-gradient(135deg, #a78bfa, #f472b6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
body.theme-gorgeous .people-price.green {
    background: linear-gradient(135deg, #34d399, #10b981);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

body.theme-gorgeous .breakdown-header:hover {
    background: rgba(255,255,255,0.03);
}
body.theme-gorgeous .theme-toggle {
    background: rgba(30, 41, 59, 0.7);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-color: rgba(255,255,255,0.1);
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}
body.theme-gorgeous .theme-toggle:hover {
    box-shadow: 0 8px 20px rgba(236,72,153,0.3);
}
body.theme-gorgeous .hotel-select-row select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 12 12'%3E%3Cpath fill='%23cbd5e1' d='M6 8.825L.35 3.175l.7-.7L6 7.425l4.95-4.95.7.7z'/%3E%3C/svg%3E");
}