/* Landing page: light theme in the spirit of Suno (warm off-white, ink text,
   medium-weight grotesk, orange/magenta glow, gradient pills, cover cards).
   Tools and lab pages keep studio.css as is. */
body.landing {
  --bg: #F7F4EF;
  --ink: #101012;
  --plum: #101012;
  --plum-deep: #101012;
  --muted: #6B6760;
  --line: #E7E1D8;
  --white: #FFFFFF;
  --warm: #FBF1E7;
  --warm-line: #F1DCC6;
  --brand: #F2622B;
  --brand-deep: #D2471A;
  --brand-soft: rgba(242, 98, 43, 0.12);
  --peach: #FFB27A;
  --pink: #E8407A;
  --grad: linear-gradient(95deg, #E8407A 0%, #F2622B 55%, #F79A2D 100%);
  --disp: 'Inter Tight', 'Chiron Hei HK', 'PingFang HK', 'Noto Sans TC', sans-serif;
  --body: 'Inter', 'PingFang HK', 'Noto Sans TC', -apple-system, sans-serif;
  --cjk: 'Chiron Hei HK', 'PingFang HK', 'Noto Sans TC', sans-serif;
  --radius: 22px;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
}

html { scroll-behavior: smooth; scroll-padding-top: 88px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* language switching */
html[data-lang="en"] [lang="zh-HK"],
html:not([data-lang="en"]) [lang="en"] { display: none !important; }

.landing h1, .landing h2, .landing h3 { font-family: var(--disp); color: var(--ink); letter-spacing: -0.025em; }
.landing h2 { font-weight: 600; }
.landing a { color: inherit; }

/* pills */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: 500 0.92rem var(--disp);
  letter-spacing: -0.01em;
  border-radius: 100px;
  padding: 9px 18px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.pill.solid { background: var(--ink); color: #fff; }
.pill.solid:hover { transform: translateY(-1px); }
.pill.ghost { background: transparent; color: var(--ink); border-color: rgba(16, 16, 18, 0.18); }
.pill.ghost:hover { border-color: var(--ink); }
.pill.grad { background: var(--grad); color: #fff; box-shadow: 0 8px 22px rgba(232, 64, 122, 0.25); }
.pill.grad:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(232, 64, 122, 0.32); }
.landing button.pill { font-family: var(--disp); }

/* nav */
.lnav {
  position: sticky;
  top: 0;
  z-index: 40;
  padding-top: env(safe-area-inset-top, 0px);
  background: rgba(247, 244, 239, 0.78);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid rgba(16, 16, 18, 0.06);
}
.lnav-inner { max-width: 1240px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; gap: 28px; }
.lnav .brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.lnav .brand img { height: 26px; }
.lnav .brand .sub { font: 600 1rem var(--disp); color: var(--ink); padding-left: 10px; border-left: 1px solid var(--line); }
.lnav .links { display: flex; gap: 22px; }
.lnav .links a { font: 500 0.93rem var(--disp); text-decoration: none; color: var(--ink); opacity: 0.72; }
.lnav .links a:hover { opacity: 1; }
.lnav .right { margin-left: auto; display: flex; gap: 8px; }

/* hero */
.lhero {
  position: relative;
  overflow: hidden;
  padding: 92px 20px 64px;
  text-align: center;
  isolation: isolate;
}
.glow {
  position: absolute;
  inset: -20% -10% -10%;
  z-index: -1;
  background:
    radial-gradient(38% 42% at 30% 30%, rgba(247, 154, 45, 0.38), transparent 70%),
    radial-gradient(34% 40% at 68% 26%, rgba(232, 64, 122, 0.30), transparent 70%),
    radial-gradient(30% 34% at 52% 62%, rgba(150, 92, 220, 0.18), transparent 70%),
    radial-gradient(40% 40% at 85% 75%, rgba(242, 98, 43, 0.16), transparent 70%);
  filter: blur(18px);
}
.glow::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.35;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.5  0 0 0 0 0.45  0 0 0 0 0.4  0 0 0 0.55 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
.lhero-copy { position: relative; max-width: 820px; margin: 0 auto; }
.chip {
  display: inline-block;
  font: 500 0.82rem var(--disp);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(16, 16, 18, 0.08);
  border-radius: 100px;
  padding: 6px 14px;
  margin-bottom: 22px;
}
.lhero h1 {
  font-weight: 500;
  font-size: clamp(2.5rem, 6.4vw, 4.6rem);
  line-height: 1.06;
  letter-spacing: -0.035em;
  margin: 0 0 20px;
  text-wrap: balance;
}
html:not([data-lang="en"]) .lhero h1 { font-family: var(--cjk); font-weight: 600; letter-spacing: -0.01em; line-height: 1.18; }
.lhero h1 .type {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.caret { display: inline-block; width: 3px; height: 0.9em; margin-left: 4px; background: var(--ink); vertical-align: -0.08em; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.lhero .lede { color: #3D3A36; font-size: 1.08rem; line-height: 1.65; max-width: 640px; margin: 0 auto; }

.prompt {
  margin: 30px auto 0;
  max-width: 720px;
  text-align: left;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(16, 16, 18, 0.08);
  border-radius: 24px;
  padding: 14px 14px 12px 20px;
  box-shadow: 0 18px 50px rgba(120, 60, 30, 0.12);
  backdrop-filter: blur(8px);
}
.prompt textarea {
  width: 100%;
  border: 0;
  outline: 0;
  resize: none;
  background: transparent;
  font: 400 1.02rem/1.5 var(--body);
  color: var(--ink);
  padding: 6px 0 10px;
}
.prompt textarea::placeholder { color: #9A948B; }
.prompt-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.occasions { display: flex; flex-wrap: wrap; gap: 6px; }
.occ {
  font: 500 0.85rem var(--disp);
  color: var(--ink);
  background: #F2EEE7;
  border: 1px solid transparent;
  border-radius: 100px;
  padding: 6px 12px;
  cursor: pointer;
}
.occ:hover { border-color: rgba(16, 16, 18, 0.18); }
.occ.on { background: var(--ink); color: #fff; }
.prompt .pill.grad { margin-left: auto; padding: 10px 20px; }
.under { margin: 18px 0 0; font-size: 0.95rem; }
.under a { color: var(--muted); text-decoration: none; }
.under a:hover { color: var(--ink); }

.float-card {
  position: absolute;
  top: 120px;
  width: clamp(170px, 17vw, 250px);
  margin: 0;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(60, 30, 10, 0.22);
  background: #222;
}
.float-card img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: cover; }
.float-card figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 40px 14px 12px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.72), transparent);
  color: #fff;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.float-card b { font: 600 0.95rem var(--cjk); }
.float-card figcaption > span { font-size: 0.75rem; opacity: 0.8; }
.float-card.left { left: max(-40px, calc(50% - 720px)); transform: rotate(-8deg); }
.float-card.right { right: max(-40px, calc(50% - 720px)); top: 170px; transform: rotate(7deg); }

/* sections */
.block { margin-top: 84px; }
.sec-row { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.sec-h { font-size: clamp(1.8rem, 3.6vw, 2.5rem); margin: 0 0 20px; font-weight: 600; }
.sec-row .sec-h { margin: 0; }
html:not([data-lang="en"]) .sec-h { font-family: var(--cjk); letter-spacing: 0; }
.note { color: var(--muted); font-size: 0.85rem; }

.covers { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.cover { margin: 0; }
.cover img { display: block; width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: 16px; box-shadow: 0 10px 30px rgba(60, 30, 10, 0.12); transition: transform .25s ease; }
.cover:hover img { transform: translateY(-4px); }
.cover figcaption { margin-top: 10px; display: flex; flex-direction: column; gap: 2px; }
.cover b { font: 600 0.98rem var(--cjk); }
.cover figcaption > span { color: var(--muted); font-size: 0.82rem; }

.demo {
  margin-top: 84px;
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 40px;
  align-items: center;
  background: #101012;
  color: #fff;
  border-radius: 28px;
  padding: 40px;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.demo::before {
  content: '';
  position: absolute;
  inset: -30%;
  z-index: -1;
  background:
    radial-gradient(30% 40% at 80% 30%, rgba(232, 64, 122, 0.35), transparent 70%),
    radial-gradient(30% 40% at 95% 85%, rgba(247, 154, 45, 0.30), transparent 70%);
  filter: blur(20px);
}
.demo .label { color: var(--peach); font: 600 0.78rem var(--disp); letter-spacing: 0.1em; text-transform: uppercase; display: block; margin-bottom: 12px; }
.demo h2 { color: #fff; font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 0 0 12px; }
html:not([data-lang="en"]) .demo h2 { font-family: var(--cjk); letter-spacing: 0; }
.demo p { color: rgba(255, 255, 255, 0.7); margin: 0; }
.demo-screen {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 18px;
  padding: 28px 24px;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.demo-sec { font: 600 0.72rem var(--disp); letter-spacing: 0.14em; color: var(--peach); margin-bottom: 8px; }
.demo-line { font-family: var(--cjk); font-weight: 700; font-size: clamp(24px, 3.2vw, 34px); line-height: 1.35; min-height: 2.7em; }
.demo-line .c { color: rgba(255, 255, 255, 0.26); transition: color 90ms; }
.demo-line .c.on { color: #fff; }
.demo-line .c.now { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.demo-line .w { margin: 0 0.15em; }
.demo-next { font-family: var(--cjk); color: rgba(255, 255, 255, 0.34); font-size: 17px; margin-top: 10px; min-height: 1.5em; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.step { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.landing .pip {
  width: 40px; height: 40px; border-radius: 12px;
  background: var(--grad); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font: 600 1.05rem var(--disp);
  margin-bottom: 16px;
}
.step h3 { font-size: 1.15rem; font-weight: 600; margin: 0 0 8px; }
html:not([data-lang="en"]) .step h3, html:not([data-lang="en"]) .workshop h3 { font-family: var(--cjk); letter-spacing: 0; }
.step p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.gets { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.get { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; gap: 6px; }
.get b { font: 600 1.05rem var(--cjk); color: var(--ink); }
.get > span { color: var(--muted); font-size: 0.93rem; }

.workshop {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin-top: 16px;
  background: var(--warm);
  border: 1px solid var(--warm-line);
  border-radius: var(--radius);
  padding: 26px 28px;
}
.workshop .label, .landing .label { font: 600 0.76rem var(--disp); letter-spacing: 0.1em; text-transform: uppercase; color: var(--brand-deep); display: block; margin-bottom: 8px; }
.workshop h3 { font-size: 1.3rem; font-weight: 600; margin: 0 0 8px; }
.workshop p { margin: 0; color: #4A4640; max-width: 680px; }

.landing .btn {
  display: inline-block;
  font: 500 0.92rem var(--disp);
  text-decoration: none;
  border-radius: 100px;
  padding: 10px 20px;
  background: var(--ink);
  color: #fff;
  border: 0;
  box-shadow: none;
  white-space: nowrap;
}
.landing .btn:hover { transform: translateY(-1px); }
.landing .btn.primary { background: var(--grad); color: #fff; box-shadow: 0 8px 22px rgba(232, 64, 122, 0.22); }

.season {
  margin-top: 84px;
  padding: 46px;
  border-radius: 28px;
  background: #101012;
  color: #fff;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.season::before {
  content: '';
  position: absolute;
  inset: -40%;
  z-index: -1;
  background: radial-gradient(30% 50% at 15% 20%, rgba(247, 154, 45, 0.32), transparent 70%), radial-gradient(30% 45% at 90% 90%, rgba(232, 64, 122, 0.30), transparent 70%);
  filter: blur(24px);
}
.season .label { color: var(--peach); }
.season h2 { color: #fff; font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin: 0 0 12px; }
html:not([data-lang="en"]) .season h2 { font-family: var(--cjk); letter-spacing: 0; }
.season p { color: rgba(255, 255, 255, 0.78); max-width: 760px; margin: 0 0 24px; font-size: 1.05rem; }

.faq { display: grid; gap: 10px; max-width: 860px; }
.faq details { background: var(--white); border: 1px solid var(--line); border-radius: 18px; padding: 18px 22px; }
.faq summary { cursor: pointer; font: 600 1.02rem var(--cjk); color: var(--ink); list-style: none; display: flex; justify-content: space-between; gap: 12px; }
html[data-lang="en"] .faq summary { font-family: var(--disp); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--brand); font-size: 1.2rem; line-height: 1; }
.faq details[open] summary::after { content: '−'; }
.faq p { margin: 10px 0 0; color: var(--muted); }

/* course */
.course { margin-top: 100px; }
.course .eyebrow { display: inline-block; font: 500 0.82rem var(--disp); letter-spacing: 0; text-transform: none; color: var(--ink); background: var(--white); border: 1px solid var(--line); border-radius: 100px; padding: 6px 14px; margin-bottom: 18px; }
.course-head { max-width: 860px; }
.course-head h2 { font-size: clamp(2rem, 4.6vw, 3.2rem); line-height: 1.1; margin: 0 0 14px; font-weight: 600; }
html:not([data-lang="en"]) .course-head h2 { font-family: var(--cjk); letter-spacing: 0; }
.course-head .lede { color: #3D3A36; font-size: 1.05rem; }
.course-banner { margin: 28px 0 0; border-radius: 26px; overflow: hidden; box-shadow: 0 24px 60px rgba(40, 20, 10, 0.16); }
.course-banner img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 7; object-fit: cover; }
.course-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 20px; margin-top: 22px; align-items: start; }
.landing .card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; margin-top: 0; }

.lessons { margin: 4px 0 0; padding: 0; list-style: none; counter-reset: l; display: grid; gap: 14px; }
.lessons li { counter-increment: l; display: grid; grid-template-columns: 34px 1fr; column-gap: 12px; }
.lessons li::before {
  content: counter(l);
  grid-row: span 2;
  width: 30px; height: 30px; border-radius: 9px;
  background: #F2EEE7; color: var(--ink);
  display: flex; align-items: center; justify-content: center;
  font: 600 0.9rem var(--disp);
}
.lessons b { font: 600 1.02rem var(--cjk); color: var(--ink); }
.lessons li > span { color: var(--muted); font-size: 0.93rem; }

.price { border: 0 !important; position: sticky; top: 90px; background:
  linear-gradient(var(--white), var(--white)) padding-box,
  var(--grad) border-box !important;
  border: 2px solid transparent !important;
  box-shadow: 0 24px 60px rgba(232, 64, 122, 0.14); }
.price-row { display: flex; align-items: center; gap: 12px; }
.was { color: var(--muted); text-decoration: line-through; text-decoration-thickness: 2px; font-size: 1.05rem; }
.off { background: var(--grad); color: #fff; font: 600 0.85rem var(--disp); border-radius: 100px; padding: 4px 12px; }
.price .now { font: 600 clamp(2.4rem, 5vw, 3.3rem) var(--disp); color: var(--ink); letter-spacing: -0.03em; line-height: 1.1; margin: 6px 0; }
.fine { color: var(--muted); font-size: 0.85rem; margin: 8px 0 0; }
.fine.center { text-align: center; }
.bonus-h { margin-top: 22px; }
.bonuses { margin: 0 0 20px; padding: 0; list-style: none; display: grid; gap: 10px; }
.bonuses li { position: relative; padding-left: 26px; font-size: 0.93rem; }
.bonuses li::before { content: '✓'; position: absolute; left: 0; color: var(--brand); font-weight: 700; }
.landing .btn.wide { display: block; text-align: center; padding: 13px 22px; font-size: 1rem; }

/* enquiry */
.enquire { margin-top: 100px; padding: 36px; }
.enquire h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin: 0 0 20px; font-weight: 600; }
html:not([data-lang="en"]) .enquire h2 { font-family: var(--cjk); letter-spacing: 0; }
.kinds { border: 0; padding: 0; margin: 0 0 20px; display: flex; flex-wrap: wrap; gap: 8px; }
.kinds label { cursor: pointer; }
.kinds input { position: absolute; opacity: 0; pointer-events: none; }
.kinds label > span { display: inline-block; font: 500 0.92rem var(--disp); color: var(--ink); background: #F2EEE7; border-radius: 100px; padding: 8px 18px; }
.kinds input:checked + span { background: var(--ink); color: #fff; }
.kinds input:focus-visible + span { outline: 3px solid var(--brand); outline-offset: 2px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; }
.f { display: flex; flex-direction: column; gap: 6px; font-size: 0.9rem; font-weight: 500; color: var(--ink); }
.f.wide { grid-column: 1 / -1; }
.f input, .f select, .f textarea {
  font: 400 1rem var(--body);
  color: var(--ink);
  background: #F7F4EF;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 11px 14px;
  width: 100%;
}
.f textarea { resize: vertical; }
.f input:focus, .f select:focus, .f textarea:focus { outline: 2px solid var(--brand); outline-offset: 1px; background: #fff; }
.f.bad input { border-color: #B3261E; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; }
.submit-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 20px; }
.landing .submit-row button {
  font: 500 1rem var(--disp);
  border: 0;
  border-radius: 100px;
  padding: 12px 34px;
  background: var(--grad);
  color: #fff;
  cursor: pointer;
  box-shadow: 0 8px 22px rgba(232, 64, 122, 0.22);
}
.submit-row .fine { margin: 0; }
.status { margin: 16px 0 0; padding: 12px 16px; border-radius: 14px; font-weight: 500; }
.status.ok { background: #EAF6EE; color: #1D5B33; }
.status.err { background: #FCEBEA; color: #8C1D18; }

.foot { border-top: 1px solid var(--line); margin-top: 80px; }
.foot-inner { display: flex; justify-content: space-between; gap: 12px; padding-top: 22px; padding-bottom: 40px; color: var(--muted); font-size: 0.9rem; }
.foot a { color: var(--muted); }

@media (max-width: 1100px) {
  .float-card { width: 150px; opacity: 0.85; }
  .float-card.left { left: -50px; }
  .float-card.right { right: -50px; }
}
@media (max-width: 960px) {
  .steps, .gets { grid-template-columns: 1fr 1fr; }
  .covers { grid-template-columns: repeat(3, 1fr); }
  .covers .cover:nth-child(n+4) { display: none; }
  .demo { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .float-card { display: none; }
  .lhero { padding-top: 56px; }
  .course-grid { grid-template-columns: 1fr; }
  .price { position: static; }
  .workshop { flex-direction: column; align-items: flex-start; }
  .lnav .links { display: none; }
}
@media (max-width: 640px) {
  .steps, .gets, .grid { grid-template-columns: 1fr; }
  .covers { grid-template-columns: repeat(2, 1fr); }
  .covers .cover:nth-child(n+3) { display: none; }
  .season, .enquire, .demo { padding: 26px 20px; }
  .prompt .pill.grad { width: 100%; justify-content: center; }
  .lnav .brand img { height: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  .caret { animation: none; }
  .pill, .cover img { transition: none; }
}