/* Derived from the existing JLPT marketing.html by explicit user request. */

  :root {
    --bg:        #08090A;
    --surface:   #101113;
    --surface-2: #16171A;
    --border:    #1F2023;
    --border-2:  #2A2B2F;
    --text:      #F7F8F8;
    --text-2:    #B4B6BC;
    --text-3:    #6B6D74;
    --accent:    #5E6AD2;
    --accent-2:  #7170FF;
    --accent-soft: rgba(94,106,210,0.10);
    --green:     #4CB782;
    --amber:     #F2C744;
    --pink:      #E879A8;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility; scroll-behavior: smooth; }
  html, body { overflow-x: hidden; }
  body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Pretendard', system-ui, sans-serif;
    font-feature-settings: 'cv02','cv03','cv04','cv11','ss01';
    background: var(--bg);
    color: var(--text);
    line-height: 1.55;
    min-height: 100vh;
    position: relative;
  }
  body::before {
    content: '';
    position: absolute;
    top: -260px; left: 50%;
    transform: translateX(-50%);
    width: 1100px; height: 900px;
    background:
      radial-gradient(circle at 30% 40%, rgba(94,106,210,0.18) 0%, transparent 55%),
      radial-gradient(circle at 70% 60%, rgba(232,121,168,0.10) 0%, transparent 55%);
    pointer-events: none;
    z-index: 0;
    filter: blur(20px);
  }

  /* Nav */
  .nav {
    position: sticky; top: 0;
    z-index: 50;
    border-bottom: 1px solid var(--border);
    background: rgba(8,9,10,0.72);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
  }
  .nav-inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px;
  }
  .brand {
    display: flex; align-items: center; gap: 10px;
    color: var(--text); text-decoration: none;
    font-weight: 600; font-size: 14px;
    letter-spacing: -0.01em;
  }
  .brand-mark {
    width: 24px; height: 24px;
    border-radius: 7px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
    display: grid; place-items: center;
    color: white; font-size: 12px; font-weight: 700;
  }
  .nav-menu {
    display: flex; align-items: center; gap: 24px;
  }
  .nav-menu a {
    color: var(--text-2); text-decoration: none; font-size: 13.5px;
    transition: color 0.15s ease;
  }
  .nav-menu a:hover { color: var(--text); }
  .nav-cta {
    padding: 7px 14px;
    background: var(--text);
    color: var(--bg) !important;
    border-radius: 7px;
    font-weight: 500;
    font-size: 13px !important;
    transition: opacity 0.15s ease;
  }
  .nav-cta:hover { opacity: 0.85; color: var(--bg) !important; }
  .menu-toggle {
    display: none;
    width: 36px; height: 36px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 7px;
    color: var(--text);
    cursor: pointer;
    align-items: center; justify-content: center;
  }

  main { position: relative; z-index: 1; }

  /* Hero */
  .hero {
    max-width: 880px;
    margin: 0 auto;
    padding: 96px 24px 72px;
    text-align: center;
  }
  .hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 5px 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 12.5px;
    color: var(--text-2);
    margin-bottom: 28px;
  }
  .hero-badge .dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 10px rgba(76,183,130,0.6);
  }
  .hero h1 {
    font-size: 72px;
    line-height: 1.02;
    font-weight: 600;
    letter-spacing: -0.045em;
    margin-bottom: 24px;
    background: linear-gradient(180deg, #FFFFFF 0%, #C8C9CE 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .hero p {
    font-size: 19px;
    color: var(--text-2);
    line-height: 1.55;
    letter-spacing: -0.005em;
    max-width: 580px;
    margin: 0 auto 36px;
  }

  .cta-row {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 14px;
  }
  .btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 11px 18px;
    border-radius: 9px;
    font-size: 14px; font-weight: 500;
    letter-spacing: -0.005em;
    text-decoration: none;
    transition: all 0.15s ease;
    border: 1px solid transparent;
    cursor: pointer;
  }
  .btn-primary {
    background: var(--text);
    color: var(--bg);
  }
  .btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }
  .btn-ghost {
    background: var(--surface);
    color: var(--text);
    border-color: var(--border);
  }
  .btn-ghost:hover { background: var(--surface-2); border-color: var(--border-2); }
  .btn-store {
    background: transparent;
    color: var(--text);
    border-color: var(--border-2);
    padding: 12px 18px;
  }
  .btn-store:hover { background: var(--surface); border-color: #3A3B40; }
  .btn-store .store-icon { width: 18px; height: 18px; }

  .hint {
    margin-top: 28px;
    font-family: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
    font-size: 12px;
    color: var(--text-3);
    letter-spacing: 0.02em;
  }
  .hint kbd {
    display: inline-block;
    padding: 1px 7px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-bottom-width: 2px;
    border-radius: 4px;
    font-family: inherit;
    font-size: 11px;
    color: var(--text);
    margin: 0 2px;
  }

  /* Section */
  section.block {
    max-width: 1080px;
    margin: 0 auto;
    padding: 72px 24px;
  }
  .section-label {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 14px;
  }
  .section-label::before {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 12px rgba(94,106,210,0.6);
  }
  .section-title {
    font-size: 38px;
    font-weight: 600;
    letter-spacing: -0.035em;
    color: var(--text);
    line-height: 1.12;
    margin-bottom: 14px;
    max-width: 640px;
  }
  .section-sub {
    font-size: 16.5px;
    color: var(--text-2);
    line-height: 1.55;
    max-width: 600px;
    margin-bottom: 48px;
  }

  /* Feature cards (3 cards grid) */
  .feature-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }
  .feature-card {
    padding: 26px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
  }
  .feature-card:hover {
    border-color: var(--border-2);
    background: var(--surface-2);
    transform: translateY(-2px);
  }
  .feature-card .icon-box {
    width: 40px; height: 40px;
    border-radius: 10px;
    display: grid; place-items: center;
    margin-bottom: 18px;
    border: 1px solid;
  }
  .feature-card .icon-box.c1 { color: var(--accent-2); background: rgba(94,106,210,0.1); border-color: rgba(94,106,210,0.25); }
  .feature-card .icon-box.c2 { color: var(--green);    background: rgba(76,183,130,0.1); border-color: rgba(76,183,130,0.25); }
  .feature-card .icon-box.c3 { color: var(--amber);    background: rgba(242,199,68,0.1); border-color: rgba(242,199,68,0.25); }
  .feature-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.015em;
    margin-bottom: 8px;
  }
  .feature-card p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.6;
  }

  /* Main features (6 items list grid) */
  .features-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
  }
  .feature-item {
    background: var(--bg);
    padding: 28px 24px;
    transition: background 0.15s ease;
  }
  .feature-item:hover { background: var(--surface); }
  .feature-item .num {
    display: inline-block;
    font-family: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.04em;
    margin-bottom: 14px;
  }
  .feature-item h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.01em;
    margin-bottom: 6px;
  }
  .feature-item p {
    font-size: 13.5px;
    color: var(--text-2);
    line-height: 1.6;
  }

  /* Screenshots scroll */
  .screenshots-wrap {
    margin: 0 -24px;
    padding: 0 24px;
    overflow: hidden;
  }
  .screenshots-scroll {
    display: flex;
    gap: 18px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: 18px;
    scrollbar-color: var(--border-2) transparent;
    scrollbar-width: thin;
  }
  .screenshots-scroll::-webkit-scrollbar { height: 6px; }
  .screenshots-scroll::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 3px; }
  .screenshots-scroll::-webkit-scrollbar-track { background: transparent; }
  .screenshot {
    flex: 0 0 240px;
    aspect-ratio: 9/19.5;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    overflow: hidden;
    scroll-snap-align: start;
  }
  .screenshot img {
    width: 100%; height: 100%; display: block;
    object-fit: cover;
  }

  /* Final CTA */
  .final-cta-card {
    max-width: 720px;
    margin: 0 auto;
    padding: 56px 32px;
    text-align: center;
    background:
      linear-gradient(180deg, rgba(94,106,210,0.10) 0%, rgba(94,106,210,0.02) 100%),
      var(--surface);
    border: 1px solid rgba(94,106,210,0.25);
    border-radius: 18px;
    position: relative;
    overflow: hidden;
  }
  .final-cta-card::before {
    content: '';
    position: absolute;
    top: -50%; left: 50%; transform: translateX(-50%);
    width: 600px; height: 400px;
    background: radial-gradient(ellipse at center, rgba(94,106,210,0.18) 0%, transparent 60%);
    pointer-events: none;
  }
  .final-cta-card > * { position: relative; z-index: 1; }
  .final-cta-card h2 {
    font-size: 32px;
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--text);
    line-height: 1.15;
    margin-bottom: 14px;
  }
  .final-cta-card p {
    font-size: 15.5px;
    color: var(--text-2);
    line-height: 1.6;
    max-width: 480px;
    margin: 0 auto 28px;
  }

  /* Contact */
  .contact-block {
    max-width: 720px;
    margin: 0 auto;
  }
  .contact-card {
    padding: 28px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    text-align: center;
  }
  .contact-card .email {
    display: inline-block;
    font-family: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
    font-size: 16px;
    color: var(--accent-2);
    text-decoration: none;
    padding: 6px 12px;
    background: var(--accent-soft);
    border-radius: 7px;
    margin-bottom: 16px;
  }
  .contact-card .email:hover { background: rgba(94,106,210,0.18); }
  .contact-card p {
    color: var(--text-2);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
  }

  /* Reveal animation */
  .reveal {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }
  .reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* Footer */
  footer {
    border-top: 1px solid var(--border);
    margin-top: 64px;
    padding: 40px 24px 56px;
  }
  .footer-inner {
    max-width: 1080px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
    color: var(--text-3);
    font-size: 13px;
  }
  .footer-links {
    display: flex;
    gap: 22px;
    flex-wrap: wrap;
  }
  .footer-links a {
    color: var(--text-2);
    text-decoration: none;
    transition: color 0.15s ease;
  }
  .footer-links a:hover { color: var(--text); }

  /* Responsive */
  @media (max-width: 880px) {
    .feature-cards { grid-template-columns: repeat(2, 1fr); }
    .features-list { grid-template-columns: repeat(2, 1fr); }
    .hero { padding: 80px 22px 64px; }
    .hero h1 { font-size: 56px; letter-spacing: -0.04em; }
    .hero p { font-size: 17px; }
    .section-title { font-size: 32px; }
  }
  @media (max-width: 640px) {
    .nav-menu { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg); border-bottom: 1px solid var(--border); padding: 8px 0; box-shadow: 0 8px 24px rgba(0,0,0,0.4); }
    .nav-menu.open { display: flex; }
    .nav-menu a { padding: 14px 24px; border-bottom: 1px solid var(--border); font-size: 14.5px; min-height: 44px; display: flex; align-items: center; }
    .nav-menu a:last-child { border-bottom: 0; }
    .nav-cta { margin: 10px 24px; text-align: center; justify-content: center; padding: 12px; min-height: 44px; }
    .menu-toggle { display: inline-flex; }

    .hero { padding: 56px 18px 48px; }
    .hero-badge { padding: 5px 11px; font-size: 12px; margin-bottom: 22px; }
    .hero h1 { font-size: 40px; letter-spacing: -0.035em; }
    .hero p { font-size: 16px; margin-bottom: 28px; max-width: none; }
    .cta-row { gap: 8px; }
    .btn { min-height: 44px; padding: 12px 18px; }
    .hint { display: none; }

    section.block { padding: 56px 18px; }
    .section-label { font-size: 10.5px; }
    .section-title { font-size: 28px; letter-spacing: -0.03em; }
    .section-sub { font-size: 15px; margin-bottom: 32px; }

    .feature-cards { grid-template-columns: 1fr; gap: 12px; }
    .features-list { grid-template-columns: 1fr; }
    .feature-card { padding: 22px; }
    .feature-card .icon-box { width: 36px; height: 36px; margin-bottom: 14px; }
    .feature-card h3 { font-size: 15.5px; }
    .feature-card p { font-size: 13.8px; }
    .feature-item { padding: 22px 20px; }

    .final-cta-card { padding: 44px 22px; border-radius: 14px; }
    .final-cta-card h2 { font-size: 26px; }
    .final-cta-card p { font-size: 14.5px; margin-bottom: 24px; }
    .final-cta-card .cta-row { flex-direction: column; align-items: stretch; }
    .final-cta-card .btn-store { justify-content: center; }

    .contact-card { padding: 22px; }
    .contact-card .email { font-size: 14.5px; word-break: break-all; }

    footer { padding: 32px 18px 48px; margin-top: 48px; }
    .footer-inner { flex-direction: column; align-items: flex-start; gap: 14px; font-size: 12.5px; }
    .footer-links { gap: 14px 18px; font-size: 13px; }

    .screenshots-wrap { margin: 0 -18px; padding: 0 18px; }
    .screenshot { flex-basis: 200px; border-radius: 14px; }
  }
  @media (max-width: 480px) {
    .hero { padding: 44px 16px 36px; }
    .hero h1 { font-size: 34px; letter-spacing: -0.03em; }
    .hero p { font-size: 15.5px; }
    .hero-badge { font-size: 11.5px; }

    section.block { padding: 48px 16px; }
    .section-title { font-size: 25px; }
    .section-sub { font-size: 14.5px; margin-bottom: 28px; }

    .feature-card { padding: 20px; }
    .feature-item { padding: 20px 18px; }

    .final-cta-card { padding: 36px 18px; }
    .final-cta-card h2 { font-size: 23px; }

    .contact-card { padding: 18px; }
    .contact-card .email { font-size: 13.5px; padding: 5px 10px; }

    .btn { padding: 11px 16px; font-size: 13.5px; }
    .btn-store { padding: 11px 16px; }

    .nav-inner { padding: 12px 18px; }
  }
  @media (max-width: 360px) {
    .nav-inner { padding: 10px 14px; }
    .brand { font-size: 13px; gap: 8px; }
    .brand-mark { width: 22px; height: 22px; font-size: 11px; }
    .hero h1 { font-size: 28px; }
    .hero p { font-size: 14.5px; }
    .section-title { font-size: 22px; }
    .feature-card h3 { font-size: 14.5px; }
    .feature-card p { font-size: 13.2px; }
    .feature-item h4 { font-size: 14px; }
    .feature-item p { font-size: 12.8px; }
    .final-cta-card h2 { font-size: 21px; }
    .footer-links { gap: 10px 14px; font-size: 12.5px; }
  }

/* TOPIK additions: language selection, factual release state, keyboard access. */
:root { --text-3: #979AA3; }
html { color-scheme: dark; }
a:focus-visible,button:focus-visible,summary:focus-visible { outline: 2px solid #A9B1FF; outline-offset: 4px; }
.skip { position: fixed; left: 16px; top: -100px; z-index: 100; background: #F7F8F8; color: #08090A; padding: 12px 18px; border-radius: 7px; }
.skip:focus { top: 12px; }
.nav-inner { flex-wrap: wrap; }
.nav-menu { margin-left: auto; }
.nav-tools { display: flex; gap: 14px; align-items: center; margin-left: 0; }
.languages { display: flex; gap: 10px; align-items: center; }
.languages a { color: var(--text-2); text-decoration: none; font-size: 12px; padding: 10px 0; }
.languages a[aria-current] { color: var(--text); text-decoration: underline; text-underline-offset: 5px; }
section[id] { scroll-margin-top: 80px; }
.feature-item h3 { font-size:15px; font-weight:600; margin-bottom:6px; letter-spacing:-.01em; }
.preview-notice { display: flex; gap: 24px; align-items: center; padding: 28px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; color: var(--text-2); }
.preview-notice .icon-box { flex:0 0 40px; color:var(--accent-2); }
.preview-notice strong { display: block; font-size: 15px; color: var(--text); margin-bottom: 6px; font-weight: 500; }
.preview-notice p { font-size: 13px; line-height:1.6; }
.faq-list { max-width: 800px; }
.faq-list details { border-bottom: 1px solid var(--border); padding: 22px 0; }
.faq-list summary { cursor:pointer; color:var(--text); font-size:15px; }
.faq-list p { color:var(--text-2); font-size:14px; line-height:1.7; margin-top:16px; }
.store-status { cursor:default; }
.contact-card p:last-child { margin-bottom:0; }
.footer-links span { color:var(--text-2); }
.review-note { max-width:1080px; margin:24px auto 0; color:var(--text-3); font-size:12px; line-height:1.7; }
.reveal { opacity:1; transform:none; }
@media(min-width:641px) and (max-width:1000px) { .nav-menu { gap:14px; } .nav-menu a { font-size:12px; } .brand { font-size:13px; } }
@media(max-width:640px) { .nav-inner { gap:10px; } .nav-tools { gap:12px; } .brand { font-size:13px; } .languages a { font-size:11px; } .preview-notice { padding:22px; gap:16px; } .feature-item h3 { font-size:14px; } }
@media(max-width:360px) { .brand-label { max-width:110px; } .nav-tools { gap:8px; } .languages { gap:8px; } .nav-inner { gap:6px; } }
@media(prefers-reduced-motion:reduce) { html { scroll-behavior:auto; } *,*::before,*::after { transition:none!important; animation:none!important; } }
/* Native disclosure keeps all language links accessible without JavaScript. */
.language-picker { position:relative; font-size:12px; }
.language-picker summary { cursor:pointer; list-style:none; border:1px solid var(--border); border-radius:6px; padding:9px 10px; white-space:nowrap; }
.language-options { position:absolute; right:0; top:calc(100% + 10px); width:210px; max-height:65vh; overflow:auto; display:grid; background:#101113; border:1px solid var(--border); border-radius:10px; padding:8px; box-shadow:0 14px 40px #0009; z-index:90; }
.language-options a { padding:9px 12px; color:var(--text-2); text-decoration:none; }
.language-options a:hover,.language-options a[aria-current] { background:#22232a; color:var(--text); border-radius:5px; }
.hero h1,.section-title,.final-cta-card h2 { overflow-wrap:anywhere; }
html:lang(my),html:lang(th) { line-height:1.85; }
html:lang(my) .hero h1,html:lang(th) .hero h1 { line-height:1.55; }
@media(max-width:640px) { .nav-inner { justify-content:space-between; } .nav-tools { margin-left:auto; } .language-picker summary { max-width:135px; overflow:hidden; text-overflow:ellipsis; } }
@font-face { font-family:'TOPIK Myanmar'; src:url('./fonts/NotoSansMyanmar-Regular.ttf') format('truetype'); font-style:normal; font-weight:400; font-display:swap; unicode-range:U+1000-109F,U+A9E0-A9FF,U+AA60-AA7F; }
html:lang(my) body { font-family:'TOPIK Myanmar',system-ui,sans-serif; }
.language-options a[lang=my] { font-family:'TOPIK Myanmar',system-ui,sans-serif; }
.exam-guide .section-sub { max-width:850px; }
.exam-cards { grid-template-columns:repeat(2,minmax(0,1fr)); }
.exam-details { max-width:850px; margin:24px auto 0; color:var(--text-2); font-size:14px; line-height:1.75; }
.exam-details p { margin-bottom:14px; }
.exam-details a { color:#b5bcff; text-underline-offset:3px; }
@media(max-width:640px) { .exam-cards { grid-template-columns:1fr; } }