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

:root {
    --ink:        #16233D;
    --ink-soft:   #4C5A75;
    --paper:      #EEF2F6;
    --paper-alt:  #FFFFFF;
    --amber:      #E8A33D;
    --amber-dark: #C7822A;
    --teal:       #0F6D63;
    --line:       #D6DEE8;
    --radius:     14px;
    --shadow:     0 10px 30px -12px rgba(22, 35, 61, 0.25);
    --font-display: 'Space Grotesk', sans-serif;
    --font-body:    'Inter', sans-serif;
    --font-mono:    'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font-body);
    background: var(--paper);
    color: var(--ink);
    line-height: 1.5;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
    background: var(--ink);
    color: #fff;
    position: relative;
    z-index: 50;
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
    flex-wrap: wrap;
    gap: 10px 0;
    padding-top: 10px;
    padding-bottom: 10px;
}
.brand {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: 0.02em;
    display: flex;
    align-items: baseline;
    gap: 6px;
}
.brand span { color: var(--amber); }
.nav-links {
    display: flex;
    gap: 28px;
    font-weight: 500;
    font-size: 0.94rem;
}
.nav-links a { opacity: 0.85; transition: opacity .15s; }
.nav-links a:hover { opacity: 1; color: var(--amber); }
.nav-cta {
    display: flex;
    align-items: center;
    gap: 10px;
}
.lang-switch {
    display: flex;
    align-items: center;
    gap: 2px;
    background: rgba(255,255,255,0.08);
    border-radius: 999px;
    padding: 3px;
    margin-right: 4px;
}
.lang-link {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: rgba(255,255,255,0.6);
    padding: 5px 10px;
    border-radius: 999px;
    transition: background .15s, color .15s;
}
.lang-link:hover { color: #fff; }
.lang-link.active { background: var(--amber); color: var(--ink); }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform .12s ease, box-shadow .12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-amber { background: var(--amber); color: var(--ink); }
.btn-amber:hover { background: var(--amber-dark); }
.btn-outline { border-color: rgba(255,255,255,0.35); color: #fff; }
.btn-outline:hover { border-color: #fff; }
.btn-ink { background: var(--ink); color: #fff; }
.btn-block { width: 100%; }

/* ---------- Hero + search ---------- */
.hero {
    position: relative;
    background: linear-gradient(160deg, var(--ink) 0%, #223258 100%);
    color: #fff;
    padding: 56px 0 40px;
    overflow: hidden;
}
.hero-has-image { padding: 72px 0 48px; }
.hero-slider {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.2s ease;
}
.hero-slide.active { opacity: 1; }
.hero-content { position: relative; z-index: 1; }
.hero-eyebrow {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.75rem;
    color: var(--amber);
}
.hero-headline {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2.6vw, 2.1rem);
    line-height: 1.25;
    margin: 10px 0 6px;
    max-width: 560px;
    font-weight: 600;
}
.hero-subtext {
    color: #C4CCDC;
    max-width: 480px;
    margin: 0 0 8px;
    font-size: 0.95rem;
}

/* Boarding-pass search card — signature element
   ระยะห่างจากข้อความ hero ใช้ margin-top ปกติ (ไม่มีทางไปทับข้อความได้ไม่ว่าข้อความจะยาวแค่ไหน)
   ส่วนเอฟเฟกต์ "ลอย" ครึ่งหนึ่งเหนือ section ถัดไป ใช้ margin-bottom ลบทับพื้นที่ padding คงที่ของ section ถัดไปแทน
   (ปลอดภัยกว่าเพราะ padding ของ section เป็นค่าคงที่ ไม่ขึ้นกับความยาวเนื้อหา) */
.search-pass {
    background: var(--paper-alt);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-top: 32px;
    margin-bottom: -56px;
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: repeat(4, 1fr) auto;
    align-items: end;
}
.search-pass::before,
.search-pass::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 24px;
    height: 24px;
    background: var(--paper);
    border-radius: 50%;
    transform: translateY(-50%);
}
.search-pass::before { left: -12px; }
.search-pass::after { right: -12px; }
.search-field {
    padding: 22px 22px;
    border-right: 1px dashed var(--line);
}
.search-field:last-of-type { border-right: none; }
.search-field label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-soft);
    margin-bottom: 6px;
}
.search-field select,
.search-field input {
    width: 100%;
    border: none;
    font-family: var(--font-body);
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--ink);
    background: transparent;
}
.search-field select:focus,
.search-field input:focus { outline: none; }
.search-submit {
    padding: 14px;
    display: flex;
    align-items: center;
}
.search-submit .btn { width: 64px; height: 64px; border-radius: 50%; font-size: 1.2rem; }

/* ---------- Desktop Only (ขยายส่วน Hero และปรับตำแหน่ง Search สำหรับจอใหญ่) ---------- */
@media (min-width: 861px) {
    .hero {
        min-height: calc(100vh - 72px); /* เต็มความสูงหน้าจอ (ลบความสูง Header 72px) */
        display: flex;
        align-items: center;
        padding: 80px 0 60px;
    }
    .hero-has-image {
        padding: 100px 0 60px;
    }
    .hero-headline {
        font-size: clamp(2rem, 3.5vw, 3rem);
        max-width: 680px;
    }
    .hero-subtext {
        font-size: 1.1rem;
        max-width: 540px;
    }
    .search-pass {
        margin-top: 48px;
    }
}

@media (max-width: 860px) {
    .search-pass { grid-template-columns: 1fr 1fr; }
    .search-field { border-right: none; border-bottom: 1px dashed var(--line); }
    .search-submit { grid-column: 1 / -1; }
}

/* ---------- Sections ---------- */
.section { padding: 64px 0; }
.section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 28px;
}
.section-head h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin: 0;
}
.section-head .see-all {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--teal);
}

.country-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
}
.country-card {
    background: var(--paper-alt);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    transition: border-color .15s, transform .15s;
}
.country-card:hover { border-color: var(--amber); transform: translateY(-2px); }
.country-card .count {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-soft);
    font-weight: 500;
}

/* Tour ticket card */
.tour-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}
.ticket {
    background: var(--paper-alt);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.ticket-media {
    position: relative;
    width: 100%;
    padding-top: 100%; /* บังคับสัดส่วน 1:1 ด้วยเทคนิค padding-top (ใช้ % แทน CSS aspect-ratio)
                          เพื่อให้แสดงผลถูกต้องแน่นอนบนทุกเบราว์เซอร์/เว็บวิวมือถือ รวมเบราว์เซอร์ในแอปแชทต่างๆ */
    background: linear-gradient(135deg, #22406B, #0F6D63);
    overflow: hidden;
}
.ticket-media-fill {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
}
.ticket-media-text {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 14px;
    color: rgba(255,255,255,0.85);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 0.08em;
}
.ticket-body { padding: 18px 20px 6px; flex: 1; }
.ticket-code {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--ink-soft);
    letter-spacing: 0.05em;
}
.ticket-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.05rem;
    margin: 6px 0 10px;
}
.ticket-meta {
    display: flex;
    gap: 14px;
    font-size: 0.82rem;
    color: var(--ink-soft);
    margin-bottom: 4px;
}
.ticket-stub {
    border-top: 1px dashed var(--line);
    margin-top: 14px;
    padding: 14px 20px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}
.ticket-stub::before,
.ticket-stub::after {
    content: '';
    position: absolute;
    top: -10px;
    width: 20px;
    height: 20px;
    background: var(--paper);
    border-radius: 50%;
}
.ticket-stub::before { left: -10px; }
.ticket-stub::after { right: -10px; }
.ticket-price .from { font-size: 0.72rem; color: var(--ink-soft); display: block; }
.ticket-price .amount {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--amber-dark);
}
.seats-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    background: rgba(15,109,99,0.1);
    color: var(--teal);
    padding: 4px 10px;
    border-radius: 999px;
    font-weight: 600;
}
.seats-tag.low { background: rgba(200,60,60,0.1); color: #C83C3C; }

/* ---------- Forms ---------- */
.card {
    background: var(--paper-alt);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px;
}
.form-row { margin-bottom: 18px; }
.form-row label {
    display: block;
    font-weight: 600;
    font-size: 0.88rem;
    margin-bottom: 6px;
}
.form-row input,
.form-row select,
.form-row textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    background: var(--paper);
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
    outline: 2px solid var(--amber);
    outline-offset: 1px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

.search-filter-grid { grid-template-columns: 1fr 1fr 1fr 1fr; }
@media (max-width: 900px) { .search-filter-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .search-filter-grid { grid-template-columns: 1fr; } }

.departure-add-grid { grid-template-columns: 1fr 1fr 1fr 1fr auto; align-items: end; }
@media (max-width: 780px) { .departure-add-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .departure-add-grid { grid-template-columns: 1fr; } }

.detail-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 32px; align-items: start; }
@media (max-width: 860px) { .detail-grid { grid-template-columns: 1fr; } }

.alert {
    padding: 14px 18px;
    border-radius: 10px;
    font-size: 0.9rem;
    margin-bottom: 20px;
    font-weight: 500;
}
.alert-success { background: rgba(15,109,99,0.12); color: var(--teal); }
.alert-error { background: rgba(200,60,60,0.12); color: #C83C3C; }

/* ---------- Departure table ---------- */
.departure-list { display: flex; flex-direction: column; gap: 10px; }
.departure-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 14px 18px;
    background: var(--paper-alt);
}
.departure-row.selected { border-color: var(--amber); box-shadow: 0 0 0 3px rgba(232,163,61,0.15); }
.departure-dates { font-weight: 600; font-family: var(--font-mono); font-size: 0.88rem; }
.departure-price { font-family: var(--font-mono); font-weight: 600; color: var(--amber-dark); }

/* ---------- Footer ---------- */
.foot-contact-band {
    background: rgba(255,255,255,0.06);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.foot-contact-band h3 { color: #fff; font-family: var(--font-display); margin: 0; }
.foot-contact-buttons { display: flex; gap: 10px; flex-wrap: wrap; }
.foot-line-btn { background: #06C755; color: #fff; }
.foot-line-btn:hover { background: #05a648; }

.site-footer {
    background: var(--ink);
    color: #C4CCDC;
    padding: 48px 0 24px;
    margin-top: 40px;
    font-size: 0.9rem;
}
.site-footer h3 { color: #fff; font-family: var(--font-display); margin-bottom: 10px; }
.site-footer .foot-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}
.site-footer a:hover { color: var(--amber); }
.foot-bottom {
    border-top: 1px solid rgba(255,255,255,0.12);
    padding-top: 18px;
    font-size: 0.8rem;
    color: #8B96AC;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

/* ---------- Utility ---------- */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--ink-soft);
}
.badge-mono {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    color: var(--ink-soft);
}

/* ---------- Hamburger mobile nav ---------- */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
}
.hamburger-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform .2s ease, opacity .2s ease;
}
.hamburger-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger-btn.open span:nth-child(2) { opacity: 0; }
.hamburger-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav-panel {
    display: none;
    flex-direction: column;
    background: #223258;
    border-top: 1px solid rgba(255,255,255,0.12);
}
.mobile-nav-panel.open { display: flex; }
.mobile-nav-panel a {
    padding: 16px 24px;
    color: #fff;
    font-weight: 600;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.mobile-nav-panel a:active { background: rgba(255,255,255,0.06); }

@media (max-width: 720px) {
    .nav-links { display: none; }
    .auth-actions { display: none; }
    .hamburger-btn { display: flex; }
    .foot-grid { grid-template-columns: 1fr; }
    .foot-contact-band { flex-direction: column; align-items: stretch; text-align: center; }
    .foot-contact-buttons { flex-direction: column; }
    .foot-contact-buttons .btn { width: 100%; }
}