/* =========================================================================
   styles.css — Thailand Digital Arrival Card (TDAC) clone
   Official-inspired navy / gold / white theme, fully responsive
   ========================================================================= */

:root {
  --navy-900: #06152b;
  --navy-800: #0a2342;
  --navy-700: #12305c;
  --navy-600: #1b3a6b;
  --navy-500: #27497f;
  --gold-600: #b8952a;
  --gold-500: #d4af37;
  --gold-400: #e0bf55;
  --gold-300: #eeda9a;
  --white: #ffffff;
  --bg: #f3f5fa;
  --bg-card: #ffffff;
  --text: #1a2333;
  --text-muted: #5b6574;
  --border: #dbe1ec;
  --border-focus: #d4af37;
  --danger: #c0392b;
  --danger-bg: #fdecea;
  --success: #1e7e34;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow-sm: 0 1px 3px rgba(10, 35, 66, 0.08);
  --shadow: 0 8px 28px rgba(10, 35, 66, 0.10);
  --shadow-lg: 0 20px 55px rgba(10, 35, 66, 0.20);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans', 'Noto Sans Thai', 'Noto Sans SC', 'Noto Sans JP', 'Noto Sans KR', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

body.no-scroll { overflow: hidden; }

[hidden] { display: none !important; }

h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; }

.th, .brand-th, .hero-th, .section-th, .modal-title-th, .consent-intro .th {
  font-family: 'Noto Sans Thai', 'Noto Sans', sans-serif;
}

/* ================= TOP BAR ================= */
.topbar {
  position: sticky;
  top: 0;
  z-index: 60;
  background: linear-gradient(90deg, var(--navy-800), var(--navy-700));
  color: #fff;
  box-shadow: 0 2px 12px rgba(6, 21, 43, 0.35);
}

.topbar-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand { display: flex; align-items: center; gap: 14px; min-width: 0; }

.emblem { width: 46px; height: 46px; flex: 0 0 auto; }
.emblem-sm { width: 42px; height: 42px; }
.emblem-lg { width: 74px; height: 74px; }

.brand-title {
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: #fff;
}

.brand-th {
  font-size: 0.86rem;
  color: var(--gold-300);
  margin-top: 1px;
}

.topbar-right { display: flex; align-items: center; }

.lang-switcher { position: relative; }

.lang-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #fff;
  padding: 9px 14px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.92rem;
  font-weight: 600;
  transition: background 0.18s, border-color 0.18s;
  font-family: inherit;
}

.lang-trigger:hover { background: rgba(255, 255, 255, 0.16); border-color: var(--gold-500); }

.lang-trigger .icon { width: 18px; height: 18px; fill: currentColor; }
.lang-trigger .chevron { width: 16px; height: 16px; opacity: 0.8; }

.lang-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  min-width: 230px;
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  padding: 6px;
  list-style: none;
  z-index: 70;
  max-height: 340px;
  overflow: auto;
}

.lang-menu li {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.92rem;
  transition: background 0.14s;
}

.lang-menu li:hover { background: #f1f4fb; }

.lang-menu .flag { font-size: 1.1rem; }
.lang-menu .lang-native { font-weight: 600; color: var(--text); }
.lang-menu .lang-thai { color: var(--text-muted); font-size: 0.84rem; margin-left: auto; }

/* ================= HERO ================= */
.hero {
  background: radial-gradient(1200px 500px at 50% -10%, #1b3a6b 0%, var(--navy-800) 55%, var(--navy-900) 100%);
  color: #fff;
  border-bottom: 3px solid var(--gold-500);
  padding: 40px 20px 46px;
  text-align: center;
}

.hero-inner { max-width: 820px; margin: 0 auto; }

.hero-title {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.hero-th {
  color: var(--gold-300);
  font-size: 1.05rem;
  margin-top: 4px;
}

.hero-fee {
  display: inline-block;
  margin-top: 14px;
  background: rgba(212, 175, 55, 0.16);
  border: 1px solid rgba(212, 175, 55, 0.5);
  color: var(--gold-300);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
}

/* ================= STEPPER ================= */
.stepper {
  max-width: 1080px;
  margin: -18px auto 0;
  padding: 0 20px;
  display: flex;
  justify-content: center;
  gap: 6px;
  position: relative;
  z-index: 5;
}

.step {
  flex: 1;
  max-width: 240px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
  color: var(--text-muted);
}

.step-num {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #e8edf7;
  color: var(--text-muted);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}

.step-label { font-size: 0.86rem; font-weight: 600; }

.step.active {
  border-color: var(--gold-500);
  background: linear-gradient(180deg, #fff, #fdf8e8);
  color: var(--navy-800);
  box-shadow: 0 6px 18px rgba(212, 175, 55, 0.25);
}

.step.active .step-num { background: var(--navy-800); color: var(--gold-400); }

.step.done { border-color: #cfd8e6; color: var(--navy-700); }
.step.done .step-num { background: var(--gold-500); color: var(--navy-900); }
/* ================= FORM ================= */
.form-container {
  max-width: 900px;
  margin: 26px auto 60px;
  padding: 0 20px;
}

.progress-note {
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 5px;
  flex-wrap: wrap;
}

.progress-note .dot { color: var(--gold-600); font-weight: 700; }
.progress-note .draft-note { opacity: 0.9; }

#tdacForm {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px 32px 26px;
  border-top: 4px solid var(--gold-500);
}

.form-step { display: none; }
.form-step.active { display: block; animation: fadeIn 0.28s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

.section-head { margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }

.section-title {
  font-size: 1.32rem;
  color: var(--navy-800);
  display: inline-block;
}

.section-th {
  color: var(--gold-600);
  font-size: 0.92rem;
  margin-left: 10px;
  display: inline-block;
}

.section-desc { color: var(--text-muted); margin-top: 6px; font-size: 0.94rem; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 22px;
}

.field { display: flex; flex-direction: column; }
.field-full { grid-column: 1 / -1; }

.field > label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy-700);
  margin-bottom: 7px;
}

.req { color: var(--danger); font-style: normal; margin-left: 2px; }
.opt { color: var(--text-muted); font-style: normal; font-weight: 400; }

.hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: -2px 0 6px;
}

.question {
  font-size: 0.92rem;
  color: var(--text);
  margin: 2px 0 10px;
}

input[type="text"],
input[type="tel"],
input[type="email"],
input[type="date"],
select,
textarea {
  width: 100%;
  font-family: inherit;
  font-size: 0.96rem;
  color: var(--text);
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 13px;
  transition: border-color 0.16s, box-shadow 0.16s;
}

textarea { resize: vertical; min-height: 60px; }

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.18);
}

input::placeholder, textarea::placeholder { color: #a4adba; }

.field.has-error input,
.field.has-error select,
.field.has-error textarea,
.field.has-error .combobox {
  border-color: var(--danger);
}

.field.has-error input:focus,
.field.has-error select:focus,
.field.has-error textarea:focus {
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.14);
}

/* radio & checkbox groups */
.radio-group { display: flex; flex-wrap: wrap; gap: 10px 22px; padding: 4px 0 2px; }

.radio, .check {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.94rem;
  user-select: none;
}

.radio input, .check input {
  width: 18px;
  height: 18px;
  accent-color: var(--navy-700);
  cursor: pointer;
  flex: 0 0 auto;
}

.check { align-items: flex-start; padding: 7px 0; }
.check input { margin-top: 2px; }

/* searchable combobox */
.combobox { position: relative; }

.combobox-input-wrap { position: relative; }

.combobox-input {
  width: 100%;
  padding-right: 40px !important;
}

.combobox-arrow {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  padding: 6px 8px;
  line-height: 1;
}

.combobox-list {
  position: absolute;
  z-index: 30;
  left: 0;
  right: 0;
  top: calc(100% + 5px);
  max-height: 260px;
  overflow: auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  list-style: none;
  padding: 5px;
  margin: 0;
}

.combobox-list li {
  padding: 9px 11px;
  border-radius: 7px;
  cursor: pointer;
  font-size: 0.92rem;
}

.combobox-list li:hover, .combobox-list li.active { background: #f1f4fb; }

.combobox.has-error .combobox-input { border-color: var(--danger); }

/* date selects */
.date-selects { display: grid; grid-template-columns: 1.2fr 2fr 1.4fr; gap: 8px; }
.date-sel { padding: 10px 9px; }

/* recent-countries multi select */
.multi-select {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  background: #fbfcfe;
}

.multi-search {
  width: 100%;
  margin-bottom: 10px;
  font-family: inherit;
  font-size: 0.92rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
}

.multi-search:focus { outline: none; border-color: var(--border-focus); box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.16); }

.none-check {
  display: inline-flex;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--navy-700);
}

.multi-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 4px 8px;
  max-height: 210px;
  overflow: auto;
  padding: 4px 2px;
}

.chip { padding: 6px 8px; border-radius: 7px; font-size: 0.88rem; }
.chip:hover { background: #f1f4fb; }

/* error message */
.field-error {
  margin-top: 6px;
  font-size: 0.8rem;
  color: var(--danger);
  display: flex;
  align-items: center;
  gap: 5px;
}

.field-error::before { content: '⚠'; }

/* ================= BUTTONS ================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-size: 0.96rem;
  font-weight: 700;
  border-radius: 999px;
  padding: 12px 26px;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: background 0.18s, border-color 0.18s, color 0.18s, transform 0.08s, box-shadow 0.18s;
  letter-spacing: 0.2px;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(180deg, var(--gold-400), var(--gold-500));
  border-color: var(--gold-600);
  color: var(--navy-900);
  box-shadow: 0 4px 14px rgba(184, 149, 42, 0.32);
}

.btn-primary:hover { background: linear-gradient(180deg, #ecc96a, var(--gold-500)); box-shadow: 0 6px 18px rgba(184, 149, 42, 0.4); }

.btn-ghost {
  background: #fff;
  border-color: var(--border);
  color: var(--navy-700);
}

.btn-ghost:hover { border-color: var(--navy-500); background: #f7f9fd; }

.btn-sm { padding: 9px 18px; font-size: 0.88rem; }

/* ================= FORM NAV ================= */
.form-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.form-nav .spacer { flex: 1; }

/* ================= FOOTER ================= */
.footer {
  background: var(--navy-900);
  color: #c6d2e4;
  padding: 26px 20px;
  text-align: center;
  border-top: 3px solid var(--gold-500);
}

.footer-inner { max-width: 900px; margin: 0 auto; }

.footer-note { font-size: 0.82rem; color: #9fb0c8; }

.footer-th { font-size: 0.8rem; color: #7f92ab; margin-top: 4px; }

/* ================= MODALS ================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(6, 21, 43, 0.62);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(3px);
}

.modal {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 640px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalIn 0.24s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(14px) scale(0.98); }
  to { opacity: 1; transform: none; }
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(180deg, #fbfcfe, #fff);
}

.modal-title { font-size: 1.15rem; color: var(--navy-800); }
.modal-title-th { color: var(--gold-600); font-size: 0.86rem; margin-top: 2px; }

.modal-body { padding: 20px 24px; overflow-y: auto; }

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background: #fbfcfe;
}

.modal-close {
  margin-left: auto;
  border: none;
  background: transparent;
  font-size: 1.7rem;
  line-height: 1;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0 4px;
}

/* consent modal (wide, bilingual) */
.consent-modal { max-width: 880px; }

.consent-intro { margin-bottom: 16px; color: var(--text); font-size: 0.95rem; }
.consent-intro .th { color: var(--text-muted); }

.consent-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.consent-col { font-size: 0.86rem; color: var(--text); }

.consent-lang {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--gold-600);
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--gold-300);
}

.consent-col p { margin-bottom: 12px; }

.consent-col .third-party-note {
  color: var(--text-muted);
  font-size: 0.78rem;
  background: #f6f8fc;
  border-left: 3px solid var(--border);
  padding: 9px 11px;
  border-radius: 6px;
}

/* review modal */
.review-intro { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 14px; }

.review-content { display: flex; flex-direction: column; gap: 2px; }

.review-section-title {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gold-600);
  margin: 14px 0 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

.review-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 7px 0;
  border-bottom: 1px dashed #eef1f6;
  font-size: 0.9rem;
}

.review-key { color: var(--text-muted); flex: 0 0 42%; }
.review-value { color: var(--text); font-weight: 600; text-align: right; word-break: break-word; }

/* payment modal */
.payment-modal { max-width: 520px; }

.order-summary {
  background: #f7f9fd;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  margin-bottom: 20px;
}

.order-summary h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gold-600);
  margin-bottom: 10px;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 6px 0;
  font-size: 0.9rem;
  color: var(--text);
}

.summary-row.total {
  border-top: 1px solid var(--border);
  margin-top: 6px;
  padding-top: 10px;
  font-weight: 700;
  color: var(--navy-800);
}

.summary-price { font-weight: 700; color: var(--navy-800); }

.pay-fields { display: flex; flex-direction: column; gap: 16px; }

.pay-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.pay-secure {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.pay-secure::before { content: '🔒'; }

.btn:disabled { opacity: 0.65; cursor: not-allowed; transform: none; box-shadow: none; }

/* payment success badge */
.pay-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(30, 126, 52, 0.2);
  border: 1px solid rgba(46, 204, 113, 0.5);
  color: #b7f0c8;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  margin-top: 14px;
}

.pay-badge-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--success);
  color: #fff;
  font-size: 0.7rem;
}

/* toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  background: var(--navy-800);
  color: #fff;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 0.9rem;
  box-shadow: var(--shadow-lg);
  z-index: 200;
  max-width: 90vw;
  text-align: center;
  border: 1px solid rgba(212, 175, 55, 0.5);
}

/* ================= SUCCESS / VOUCHER ================= */
.success-view {
  max-width: 720px;
  margin: 40px auto 70px;
  padding: 0 20px;
}

.success-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  border-top: 5px solid var(--gold-500);
}

.success-head {
  background: linear-gradient(180deg, var(--navy-800), var(--navy-700));
  color: #fff;
  text-align: center;
  padding: 32px 24px;
}

.success-head .emblem { margin-bottom: 12px; }

.success-head h2 { font-size: 1.5rem; }

.success-head p { color: var(--gold-300); margin-top: 6px; }

.voucher { padding: 28px 30px; }

.voucher-top {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 22px;
}

.voucher-field {
  background: #f7f9fd;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}

.vf-label {
  display: block;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.vf-value { font-size: 1.02rem; font-weight: 700; color: var(--navy-800); word-break: break-all; }
.vf-value.mono, .mono { font-family: 'Courier New', monospace; letter-spacing: 0.5px; }

.voucher-codes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px;
  padding: 22px;
  border: 2px dashed var(--gold-400);
  border-radius: 12px;
  background: #fffdf5;
  margin-bottom: 20px;
}

.code-box { display: flex; flex-direction: column; align-items: center; gap: 8px; }

.code-box canvas { background: #fff; border: 1px solid var(--border); border-radius: 6px; padding: 4px; }

.code-caption { font-size: 0.78rem; color: var(--text-muted); font-weight: 600; }

.success-note { font-size: 0.9rem; color: var(--text); margin-bottom: 6px; }
.success-hint { font-size: 0.84rem; color: var(--text-muted); }

.success-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  padding: 20px 30px 28px;
  border-top: 1px solid var(--border);
}

/* ================= RESPONSIVE ================= */
@media (max-width: 760px) {
  .topbar-inner { padding: 10px 14px; }
  .brand-title { font-size: 0.95rem; }
  .brand-th { font-size: 0.78rem; }

  .hero-title { font-size: 1.35rem; }

  .stepper { gap: 4px; padding: 0 12px; }
  .step { padding: 9px 8px; gap: 7px; }
  .step-label { font-size: 0.72rem; }
  .step-num { width: 24px; height: 24px; font-size: 0.78rem; }

  #tdacForm { padding: 22px 18px 20px; }
  .form-grid { grid-template-columns: 1fr; gap: 16px; }

  .consent-grid { grid-template-columns: 1fr; gap: 16px; }

  .voucher-top { grid-template-columns: 1fr; }
  .voucher { padding: 20px 16px; }

  .form-nav { flex-direction: column; }
  .form-nav .btn { width: 100%; }
  .form-nav #btnPrev { order: 2; }
  .form-nav #btnNext, .form-nav #btnSubmit { order: 1; }

  .date-selects { grid-template-columns: 1fr 1.6fr 1.3fr; }

  .modal { max-height: 92vh; }
  .modal-header, .modal-body, .modal-footer { padding-left: 16px; padding-right: 16px; }

  #langTriggerLabel { max-width: 130px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}

/* ================= PRINT ================= */
@media print {
  body { background: #fff; }
  .topbar, .hero, .stepper, .form-container, .footer, .modal-overlay, .toast, .success-actions { display: none !important; }
  .success-view { margin: 0; padding: 0; max-width: none; }
  .success-card { box-shadow: none; border: 1px solid #ccc; border-top: 4px solid #d4af37; }
  .voucher-codes { background: #fff; }
  .success-head { background: #0a2342 !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}