/* ═══════════════════════════════════════════════
   Jane TOEIC — Design System (Option 1: Navy & Gold)
   Palette: navy #0F2547 / gold #C9A227 / cream #FAF7F1
   ═══════════════════════════════════════════════ */

:root {
  --navy: #0F2547;
  --navy-deep: #0A1B36;
  --gold: #C9A227;
  --gold-deep: #8A6D14;
  --gold-soft: #E8D9A8;
  --cream: #FAF7F1;
  --border: #E6DFD2;
  --ink: #1B2A41;
  --muted: #5A6B84;
  --line-green: #06C755;
  --radius: 16px;
  font-size: 16px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'IBM Plex Sans Thai', 'Anuphan', 'Leelawadee UI', 'Thonburi', 'Noto Sans Thai', sans-serif;
  background: #fff; color: var(--ink); line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; }
a { color: inherit; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 780px; margin: 0 auto; padding: 0 24px; }

/* ── Buttons ── */
.btn {
  display: inline-block; text-decoration: none; font-weight: 600;
  border-radius: 999px; padding: 12px 26px; font-size: .98rem; text-align: center;
  border: none; cursor: pointer; font-family: inherit;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }
.btn-gold { background: var(--gold); color: var(--navy-deep); box-shadow: 0 6px 16px rgba(201,162,39,.4); }
.btn-ink { background: var(--navy); color: #fff; box-shadow: 0 6px 16px rgba(15,37,71,.28); }
.btn-outline { border: 1.5px solid var(--gold); color: var(--gold-deep); background: transparent; }
.btn-outline:hover { background: var(--cream); }
.btn-white { background: #fff; color: var(--navy); box-shadow: 0 6px 16px rgba(10,27,54,.2); }
.btn-line-app { background: var(--line-green); color: #fff; }
.btn-lg { padding: 15px 34px; font-size: 1.05rem; }

/* ── Header ── */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250,247,241,.93); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar-in { display: flex; align-items: center; justify-content: space-between; height: 70px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.brand img { width: 46px; height: auto; }
.brand b { font-size: 1.2rem; color: var(--navy); }
.brand b span { color: var(--gold); }
nav.main ul { display: flex; gap: 24px; list-style: none; }
nav.main a { text-decoration: none; font-size: .95rem; font-weight: 500; }
nav.main a:hover { color: var(--navy); text-decoration: underline; text-underline-offset: 6px; text-decoration-color: var(--gold); }
nav.main a[aria-current="page"] { color: var(--navy); font-weight: 700; }
.topbar .btn { padding: 9px 20px; font-size: .9rem; }

/* Hamburger + mobile menu */
.menu-btn {
  display: none; background: none; border: 1.5px solid var(--border); border-radius: 10px;
  width: 42px; height: 42px; cursor: pointer; color: var(--navy); font-size: 1.2rem; line-height: 1;
}
.mobile-menu { display: none; background: var(--cream); border-bottom: 1px solid var(--border); }
.mobile-menu.open { display: block; }
.mobile-menu ul { list-style: none; padding: 8px 24px 16px; }
.mobile-menu a { display: block; padding: 12px 4px; text-decoration: none; font-weight: 500; border-bottom: 1px solid var(--border); }
.mobile-menu a[aria-current="page"] { color: var(--navy); font-weight: 700; }
@media (max-width: 900px) {
  nav.main, .topbar .btn-cta-desktop { display: none; }
  .menu-btn { display: block; }
}

/* ── Page hero (หน้าใน) ── */
.page-hero { background: linear-gradient(180deg, var(--cream) 0%, #fff 100%); padding: 44px 0 36px; }
.crumbs { font-size: .82rem; color: var(--muted); margin-bottom: 10px; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--navy); }
.page-hero h1 { font-size: clamp(1.7rem, 3.6vw, 2.5rem); line-height: 1.3; text-wrap: balance; color: var(--navy); }
.page-hero p.lede { color: var(--muted); font-size: 1.05rem; max-width: 40em; margin-top: 10px; }

/* ── Sections ── */
section.block { padding: 64px 0; }
section.block.tight { padding: 44px 0; }
.on-sky { background: var(--cream); }
.eyebrow { color: var(--gold-deep); font-weight: 700; font-size: .82rem; letter-spacing: .14em; text-transform: uppercase; }
h2.sec { font-size: clamp(1.45rem, 3vw, 2rem); margin: 8px 0 10px; text-wrap: balance; color: var(--navy); }
p.sub { color: var(--muted); max-width: 42em; }

/* ── Badge ── */
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1.5px solid var(--gold); color: var(--gold-deep);
  border-radius: 999px; padding: 6px 16px; font-size: .85rem; font-weight: 700;
  box-shadow: 0 4px 12px rgba(201,162,39,.2);
}

/* ── Course cards ── */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 36px; }
.cards.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: 0 16px 32px rgba(15,37,71,.12); }
.card-top { height: 96px; background: linear-gradient(140deg, #1D3A63, var(--navy)); position: relative; }
.card-top.alt { background: linear-gradient(140deg, #6E5716, var(--gold)); }
.chip { position: absolute; top: 12px; left: 12px; background: rgba(255,255,255,.94); color: var(--navy); font-size: .72rem; font-weight: 700; border-radius: 999px; padding: 3px 10px; }
.card-body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card h3 { font-size: 1.05rem; line-height: 1.4; color: var(--navy); }
.card h3 a { text-decoration: none; }
.card .meta { font-size: .8rem; color: var(--muted); display: flex; gap: 10px; flex-wrap: wrap; }
.price { margin-top: auto; padding-top: 10px; }
.price del { color: #A39B8A; font-size: .85rem; margin-right: 8px; }
.price strong { font-size: 1.3rem; font-variant-numeric: tabular-nums; color: var(--navy); }
.price .save { display: inline-block; margin-left: 8px; background: #FDEFD2; color: var(--gold-deep); font-size: .72rem; font-weight: 700; border-radius: 6px; padding: 2px 7px; }
.card .btn { margin-top: 12px; padding: 10px 0; font-size: .9rem; }
@media (max-width: 1000px) { .cards, .cards.cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .cards, .cards.cols-3 { grid-template-columns: 1fr; } }

/* ── Feature / method items ── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 36px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 36px; }
.m-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: 0 6px 18px rgba(15,37,71,.05); }
.m-item .num {
  width: 42px; height: 42px; border-radius: 999px; display: flex; align-items: center; justify-content: center;
  background: var(--navy); color: var(--gold); font-weight: 700; margin-bottom: 14px;
}
.m-item h3 { font-size: 1.02rem; margin-bottom: 6px; color: var(--navy); }
.m-item p { font-size: .92rem; color: var(--muted); }
@media (max-width: 860px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

/* ── Checklist ── */
ul.checks { list-style: none; display: flex; flex-direction: column; gap: 10px; }
ul.checks li { padding-left: 32px; position: relative; }
ul.checks li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 22px; height: 22px; border-radius: 999px; background: #FDEFD2;
  color: var(--gold-deep); font-weight: 700; font-size: .8rem;
  display: flex; align-items: center; justify-content: center;
}

/* ── Testimonials (LINE chat style) ── */
.t-rail { display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 36px 4px 14px; scrollbar-width: thin; }
.t-card {
  min-width: 340px; max-width: 340px; scroll-snap-align: start;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
}
@media (max-width: 480px) { .t-card { min-width: 86%; } }
.t-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 12px 16px; background: linear-gradient(90deg, #1D3A63, var(--navy)); color: #fff; }
.t-head .course { font-weight: 700; font-size: .85rem; letter-spacing: .02em; }
.t-head .loc { font-size: .72rem; background: var(--gold); color: var(--navy-deep); font-weight: 700; border-radius: 999px; padding: 2px 10px; white-space: nowrap; }
.t-chat { background: linear-gradient(180deg, #93A9C6, #7E97B8); padding: 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.bubble {
  background: #fff; border-radius: 4px 14px 14px 14px; padding: 9px 13px;
  font-size: .87rem; max-width: 88%; color: #1E2A36; box-shadow: 0 1px 2px rgba(0,0,0,.12);
}
.t-result { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; font-size: .8rem; color: var(--muted); background: #fff; }
.t-result strong { color: var(--navy); font-size: 1.05rem; font-variant-numeric: tabular-nums; }
.t-note { text-align: center; font-size: .8rem; color: var(--muted); margin-top: 14px; }

/* ── FAQ ── */
.faq details { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); margin-top: 14px; overflow: hidden; }
.faq summary { cursor: pointer; font-weight: 600; padding: 18px 22px; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; color: var(--navy); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--gold); font-size: 1.4rem; font-weight: 400; flex-shrink: 0; }
.faq details[open] summary::after { content: "−"; }
.faq details .a { padding: 0 22px 20px; color: var(--muted); font-size: .95rem; }

/* ── Forms ── */
.form-grid { display: flex; flex-direction: column; gap: 14px; }
.form-grid label { font-weight: 600; font-size: .9rem; }
.form-grid input, .form-grid select, .form-grid textarea {
  width: 100%; border-radius: 10px; border: 1.5px solid var(--border);
  background: #fff; color: var(--ink); padding: 13px 16px; font: inherit; font-size: .95rem;
}
.form-grid input:focus-visible, .form-grid select:focus-visible, .form-grid textarea:focus-visible { outline: 3px solid var(--gold-soft); border-color: var(--gold); }
.form-note { font-size: .8rem; color: var(--muted); }

/* ── CTA panel (พื้นกรมท่า) ── */
.cta-panel {
  background:
    radial-gradient(700px 360px at 88% -20%, rgba(201,162,39,.22), transparent 60%),
    linear-gradient(150deg, var(--navy) 0%, var(--navy-deep) 100%);
  color: #fff; border-radius: 24px; padding: 48px 44px;
  position: relative; overflow: hidden;
}
.cta-panel h2 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); text-wrap: balance; color: #fff; }
.cta-panel p { color: #C7D2E4; margin-top: 10px; font-size: .97rem; }
.cta-panel > * { position: relative; }
.cta-panel .form-grid input { border: none; }
.cta-split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
@media (max-width: 860px) { .cta-split { grid-template-columns: 1fr; } .cta-panel { padding: 36px 24px; } }

/* ── One-page order (หน้าขายคอร์ส) ── */
.sales-hero { background: linear-gradient(180deg, var(--cream) 0%, #fff 100%); padding: 52px 0; }
.sales-hero-in { display: grid; grid-template-columns: 1.2fr .8fr; gap: 44px; align-items: start; }
@media (max-width: 900px) { .sales-hero-in { grid-template-columns: 1fr; } }
.buy-box {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; box-shadow: 0 16px 40px rgba(15,37,71,.1); position: sticky; top: 90px;
}
@media (max-width: 900px) { .buy-box { position: static; } }
.buy-box .price-big { display: flex; align-items: baseline; gap: 12px; margin: 6px 0 4px; }
.buy-box .price-big del { color: #A39B8A; font-size: 1rem; }
.buy-box .price-big strong { font-size: 2rem; color: var(--navy); font-variant-numeric: tabular-nums; }
.buy-box .save { display: inline-block; background: #FDEFD2; color: var(--gold-deep); font-size: .78rem; font-weight: 700; border-radius: 6px; padding: 2px 9px; }
.buy-box ul.checks { margin: 16px 0 18px; font-size: .9rem; }
.buy-box .btn { width: 100%; }
.buy-box .mini-note { font-size: .78rem; color: var(--muted); text-align: center; margin-top: 10px; }

.order-steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 32px 0; }
@media (max-width: 860px) { .order-steps { grid-template-columns: 1fr; } }
.order-step { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; position: relative; }
.order-step::before {
  counter-increment: step; content: counter(step);
  display: flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 999px; background: var(--navy); color: var(--gold);
  font-weight: 700; margin-bottom: 12px;
}
.order-step h3 { font-size: .98rem; margin-bottom: 6px; color: var(--navy); }
.order-step p { font-size: .88rem; color: var(--muted); }
.qr-box {
  width: 180px; height: 180px; border-radius: 12px; border: 2px dashed var(--border);
  display: flex; align-items: center; justify-content: center; text-align: center;
  color: var(--muted); font-size: .8rem; background: var(--cream); padding: 12px; margin: 10px auto;
}
.order-form-panel { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; max-width: 560px; margin: 0 auto; }

/* ── Curriculum accordion ── */
.curri details { background: #fff; border: 1px solid var(--border); border-radius: 12px; margin-top: 10px; }
.curri summary { cursor: pointer; font-weight: 600; padding: 14px 18px; list-style: none; display: flex; justify-content: space-between; gap: 10px; font-size: .95rem; color: var(--navy); }
.curri summary::-webkit-details-marker { display: none; }
.curri summary .len { color: var(--muted); font-weight: 400; font-size: .82rem; }
.curri ul { list-style: none; padding: 0 18px 14px; color: var(--muted); font-size: .9rem; }
.curri ul li { padding: 6px 0; border-top: 1px dashed var(--border); }

/* ── Articles ── */
.post-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 36px; }
@media (max-width: 760px) { .post-list { grid-template-columns: 1fr; } }
.post-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; transition: transform .2s ease, box-shadow .2s ease; }
.post-card:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(15,37,71,.1); }
.post-card .date { font-size: .78rem; color: var(--muted); }
.post-card h3 { margin: 6px 0 8px; font-size: 1.08rem; line-height: 1.45; color: var(--navy); }
.post-card h3 a { text-decoration: none; }
.post-card h3 a:hover { color: var(--gold-deep); }
.post-card p { font-size: .9rem; color: var(--muted); }
.post-card .more { display: inline-block; margin-top: 12px; font-size: .88rem; font-weight: 600; color: var(--gold-deep); text-decoration: none; }

article.prose { max-width: 720px; margin: 0 auto; padding: 0 24px; }
article.prose > * + * { margin-top: 1.1em; }
article.prose h2 { font-size: 1.4rem; margin-top: 1.8em; color: var(--navy); }
article.prose h3 { font-size: 1.12rem; margin-top: 1.5em; color: var(--navy); }
article.prose .tldr {
  background: var(--cream); border-left: 4px solid var(--gold); border-radius: 0 12px 12px 0;
  padding: 18px 22px; font-size: .97rem;
}
article.prose .tldr b { color: var(--gold-deep); }
article.prose .post-meta { color: var(--muted); font-size: .85rem; }
.share-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 2.2em; padding-top: 1.2em; border-top: 1px solid var(--border); }
.share-row span { font-weight: 600; font-size: .9rem; }
.share-row a { font-size: .85rem; text-decoration: none; border: 1.5px solid var(--border); border-radius: 999px; padding: 6px 16px; }
.share-row a:hover { border-color: var(--gold); color: var(--gold-deep); }

/* ── Contact ── */
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 36px; margin-top: 36px; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
.contact-card + .contact-card { margin-top: 18px; }
.contact-card h3 { font-size: 1rem; margin-bottom: 8px; color: var(--navy); }
.contact-card p { color: var(--muted); font-size: .93rem; }
.map-box {
  border-radius: var(--radius); border: 2px dashed var(--border); background: var(--cream);
  min-height: 320px; display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: .9rem; text-align: center; padding: 20px;
}

/* ── Footer ── */
footer.site { background: var(--navy-deep); color: #A9B8CF; padding: 48px 0 56px; margin-top: 72px; font-size: .9rem; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 36px; }
footer.site h4 { color: #fff; font-size: .95rem; margin-bottom: 12px; }
footer.site ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
footer.site a { color: #A9B8CF; text-decoration: none; }
footer.site a:hover { color: var(--gold-soft); }
.soc { display: flex; gap: 12px; margin-top: 16px; }
.soc a { width: 38px; height: 38px; border-radius: 999px; border: 1px solid rgba(255,255,255,.25); display: flex; align-items: center; justify-content: center; font-size: .75rem; font-weight: 700; }
.soc a:hover { border-color: var(--gold); color: var(--gold); }
.qr { width: 92px; height: 92px; border-radius: 10px; background: #fff; color: var(--navy); display: flex; align-items: center; justify-content: center; font-size: .68rem; text-align: center; padding: 6px; }
@media (max-width: 860px) { .foot-grid { grid-template-columns: 1fr; } }

/* ── Floating LINE ── */
.line-float {
  position: fixed; right: 18px; bottom: calc(24px + env(safe-area-inset-bottom)); z-index: 60;
  width: 56px; height: 56px; border-radius: 999px; background: var(--line-green);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .8rem; text-decoration: none; box-shadow: 0 8px 20px rgba(6,199,85,.4);
}

/* ── Reveal ── */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .card, .post-card { transition: none; }
}

/* ── Utilities ── */
.center { text-align: center; }
.mt-1 { margin-top: 12px; } .mt-2 { margin-top: 24px; } .mt-3 { margin-top: 40px; }
.visually-hidden { position: absolute; left: -9999px; }