@font-face { font-family: "Playfair Display"; src: url("fonts/playfair-display-latin-700-normal.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Playfair Display"; src: url("fonts/playfair-display-latin-800-normal.woff2") format("woff2"); font-weight: 800; font-style: normal; font-display: swap; }
@font-face { font-family: "Playfair Display"; src: url("fonts/playfair-display-latin-900-normal.woff2") format("woff2"); font-weight: 900; font-style: normal; font-display: swap; }
@font-face { font-family: "Playfair Display"; src: url("fonts/playfair-display-latin-700-italic.woff2") format("woff2"); font-weight: 700; font-style: italic; font-display: swap; }
@font-face { font-family: "Playfair Display"; src: url("fonts/playfair-display-latin-800-italic.woff2") format("woff2"); font-weight: 800; font-style: italic; font-display: swap; }
@font-face { font-family: "Cinzel"; src: url("fonts/cinzel-latin-700-normal.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Cinzel"; src: url("fonts/cinzel-latin-800-normal.woff2") format("woff2"); font-weight: 800; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("fonts/inter-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("fonts/inter-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("fonts/inter-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("fonts/inter-latin-700-normal.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("fonts/inter-latin-800-normal.woff2") format("woff2"); font-weight: 800; font-style: normal; font-display: swap; }
/* =========================================================
   M-STROKE × Hong Kong Sixes 2026 — pre-registration page
   Type: Playfair Display (display) · Cinzel (brand) · Inter (text)
   Colour: deep green 0F1B06 · gold F4B019 · lime A8D24E · bone F2EEE0
   ========================================================= */
:root {
  --ink: #0F1B06; --ink-2: #15240B; --ink-3: #1E3311;
  --gold: #F4B019; --gold-2: #FFC83A; --gold-deep: #A87604;
  --lime: #A8D24E; --red: #D7262E;
  --bone: #F2EEE0; --paper: #FBF9F3; --white: #fff;
  --text: #18200F; --muted: #5C6652;
  --on-dark: #F2EEE0; --on-dark-2: #CDD4BF;
  --line: #E1DAC4; --line-dark: rgba(242,238,224,.12);
  --danger: #B3261E;
  --display: "Playfair Display", Georgia, serif;
  --brand: "Cinzel", "Playfair Display", Georgia, serif;
  --text-font: "Inter", "Helvetica Neue", Arial, sans-serif;
  --r: 18px; --r-sm: 12px;
  --gut: clamp(18px, 4.5vw, 40px);
  --sec: clamp(64px, 9vw, 112px);
}
body.zh { --display: "Noto Serif TC", "Songti TC", serif; --text-font: "Noto Sans TC", "PingFang HK", "Microsoft JhengHei", sans-serif; }
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ink); color: var(--text); font: 400 16.5px/1.65 var(--text-font); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3, p { margin: 0; }
.shell { width: min(1160px, 100%); margin: 0 auto; padding: 0 var(--gut); }
.nb { white-space: nowrap; }
.skip-link { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--gold); color: var(--ink); padding: 8px 14px; border-radius: 8px; }
.skip-link:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--lime); outline-offset: 3px; }
section[id], details[id] { scroll-margin-top: 76px; }

/* ---------- Type ---------- */
.eyebrow { font: 700 12px/1.2 var(--text-font); letter-spacing: .18em; text-transform: uppercase; color: var(--gold-deep); margin-bottom: 14px; }
body.zh .eyebrow { letter-spacing: .06em; font-size: 13px; }
h2 { font: 800 clamp(32px, 4.2vw, 50px)/1.08 var(--display); letter-spacing: -.015em; text-wrap: balance; }
body.zh h2 { font-weight: 900; letter-spacing: 0; line-height: 1.25; }
h3 { font: 700 22px/1.2 var(--display); }
body.zh h3 { font-weight: 900; }
.lead { font-size: clamp(17px, 1.6vw, 19px); line-height: 1.6; }
.fine { font-size: 13px; line-height: 1.55; color: var(--muted); }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 24px; border-radius: 999px; border: 2px solid transparent; font: 700 15px/1 var(--text-font); text-decoration: none; cursor: pointer; white-space: nowrap; transition: transform .15s, box-shadow .2s, background-color .2s; }
.btn:active { transform: translateY(1px); }
.btn-gold { background: var(--gold); color: var(--ink); box-shadow: 0 10px 24px -12px rgba(244,176,25,.9); }
.btn-gold:hover { background: var(--gold-2); }
.btn-dark { background: var(--ink); color: var(--gold); }
.btn-dark:hover { background: var(--ink-3); }
.btn-outline { border-color: var(--ink); color: var(--ink); }
.btn-sm { min-height: 38px; padding: 8px 16px; font-size: 14px; }
.btn-lg { min-height: 56px; padding: 16px 30px; font-size: 16px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .6; cursor: progress; }
.link-arrow { color: var(--on-dark); font-weight: 600; text-decoration: none; border-bottom: 1px solid rgba(242,238,224,.4); padding-bottom: 2px; }
.link-arrow::after { content: " →"; color: var(--gold); }
.link-arrow:hover { color: var(--gold); border-color: var(--gold); }

/* ---------- Header ---------- */
.site-header { position: fixed; inset: 0 0 auto; z-index: 50; padding-top: env(safe-area-inset-top); background: linear-gradient(180deg, rgba(15,27,6,.85), rgba(15,27,6,0)); transition: background-color .25s, box-shadow .25s; }
.site-header.scrolled { background: rgba(15,27,6,.94); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); box-shadow: 0 1px 0 var(--line-dark); }
.header-inner { display: flex; align-items: center; gap: 20px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--on-dark); text-decoration: none; }
.brand img { width: 34px; }
.brand-word { font: 700 19px/1 var(--brand); letter-spacing: .08em; white-space: nowrap; }
.header-nav { display: flex; gap: 28px; margin-left: auto; }
.header-nav a { color: var(--on-dark-2); font-size: 14px; font-weight: 500; text-decoration: none; }
.header-nav a:hover { color: var(--gold); }
.header-actions { display: flex; align-items: center; gap: 10px; margin-left: 12px; }
.header-nav + .header-actions { margin-left: 24px; }
.lang-toggle { white-space: nowrap; min-height: 38px; padding: 0 12px; border-radius: 999px; border: 1px solid rgba(242,238,224,.3); background: transparent; color: var(--on-dark-2); font: 600 13px var(--text-font); cursor: pointer; }
.lang-toggle .lang-en, body.zh .lang-toggle .lang-zh { color: var(--on-dark); }
body.zh .lang-toggle .lang-en { color: var(--on-dark-2); }

/* ---------- Hero ---------- */
.hero { color: var(--on-dark); padding-bottom: clamp(36px, 5vw, 56px); }
.hero-media { position: relative; }
.hero-media img { width: 100%; aspect-ratio: 2.25 / 1; max-height: 620px; object-fit: cover; object-position: 62% 78%; }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, var(--ink) 0%, rgba(15,27,6,0) 18%); }
.hero-body { position: relative; margin-top: -8px; max-width: 900px; margin-left: auto; margin-right: auto; text-align: center; }
.lockup { display: inline-flex; align-items: center; gap: 12px; margin-bottom: 18px; font: 700 14px/1 var(--brand); letter-spacing: .14em; text-transform: uppercase; }
.lk-m { color: var(--gold); }
.lk-x { color: var(--on-dark-2); font-family: var(--text-font); font-weight: 300; font-size: 18px; }
.lk-h { color: var(--on-dark); }
.lk-h b { color: #fff; background: var(--red); padding: 3px 6px; border-radius: 4px; margin-left: 4px; letter-spacing: .06em; }
body.zh .lockup { letter-spacing: .06em; font-size: 15px; }
.hero h1 { margin-bottom: 20px; }
.h1-top { display: block; font: 900 clamp(54px, 8.4vw, 104px)/.98 var(--display); letter-spacing: -.025em; color: var(--bone); }
.h1-sub { display: block; margin-top: 10px; font: italic 700 clamp(24px, 3.2vw, 38px)/1.15 var(--display); color: var(--gold); }
body.zh .h1-top { font-weight: 900; letter-spacing: 0; font-size: clamp(40px, 6.4vw, 78px); line-height: 1.15; }
body.zh .h1-sub { font-style: normal; font-weight: 700; }
.hero-lead { max-width: 640px; margin: 0 auto 28px; font-size: clamp(17px, 1.7vw, 20px); color: var(--on-dark-2); }
.hero-actions { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 14px 28px; margin-bottom: 22px; }
.hero-partner { font-size: 13px; color: var(--lime); letter-spacing: .02em; }
.event-bar { list-style: none; padding: 0; margin: clamp(36px, 5vw, 52px) 0 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.event-bar li { padding: 18px 16px; text-align: center; border-left: 1px solid var(--line-dark); }
.event-bar li:first-child { border-left: 0; }
.event-bar b { display: block; font: 800 26px/1.1 var(--display); color: var(--bone); }
.event-bar span { display: block; margin-top: 4px; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--on-dark-2); }
body.zh .event-bar span { letter-spacing: .02em; }
.ev-count b { color: var(--lime); }

/* ---------- Sections ---------- */
.sec { padding: var(--sec) 0; }
.sec-light { background: var(--bone); color: var(--text); }
.sec-dark { background: var(--ink); color: var(--on-dark); }
.sec-dark .eyebrow { color: var(--gold); }
.sec-dark + .sec-dark { padding-top: 0; }
.sec-head { max-width: 720px; margin: 0 auto clamp(32px, 4vw, 48px); text-align: center; }

/* What you get */
.gets { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 20px; }
.card { padding: 28px; border-radius: var(--r); background: var(--paper); border: 1px solid var(--line); }
.card h3 { margin: 18px 0 8px; color: var(--ink); }
.card p { color: var(--muted); font-size: 15.5px; }
.icon { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; background: var(--ink); }
.icon svg { width: 22px; height: 22px; fill: none; stroke: var(--gold); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.card-feature { display: grid; grid-template-columns: 132px 1fr; gap: 24px; align-items: center; background: var(--ink); border-color: transparent; color: var(--on-dark); }
.card-feature h3 { margin: 10px 0 8px; color: var(--gold); font-size: 26px; }
.card-feature p { color: var(--on-dark-2); }
.feature-coin { width: 132px; filter: drop-shadow(0 14px 18px rgba(0,0,0,.5)); }
.tag { display: inline-block; padding: 5px 10px; border-radius: 999px; background: var(--lime); color: var(--ink) !important; font: 700 11px/1 var(--text-font) !important; letter-spacing: .12em; text-transform: uppercase; }
.tag-soon { background: rgba(244,176,25,.15); color: var(--gold) !important; border: 1px solid rgba(244,176,25,.45); }
.licence { margin-top: 10px; font-size: 13px !important; }

/* About */
.about { display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
.about-copy h2 { color: var(--bone); margin-bottom: 18px; }
.about-copy .lead { color: var(--on-dark); margin-bottom: 14px; }
.about-copy p:not(.lead):not(.eyebrow) { color: var(--on-dark-2); }
.pillars { list-style: none; padding: 0; margin: 26px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
.pillars li { padding: 8px 18px; border-radius: 999px; border: 1px solid rgba(244,176,25,.5); color: var(--gold); font: italic 700 18px/1.2 var(--display); }
body.zh .pillars li { font-style: normal; font-size: 16px; }
.coin-block { display: grid; justify-items: center; gap: 14px; }
.coin { width: min(320px, 68vw); aspect-ratio: 1; padding: 0; border: 0; background: none; cursor: pointer; perspective: 1200px; border-radius: 50%; filter: drop-shadow(0 26px 34px rgba(0,0,0,.55)); }
.coin-inner { position: relative; display: block; width: 100%; height: 100%; transform-style: preserve-3d; }
.coin-face { position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden; }
.coin-face img { width: 100%; height: 100%; object-fit: contain; }
.coin-back { transform: rotateY(180deg); }
.coin.tossing .coin-inner { animation: flip 1.3s cubic-bezier(.3,.7,.4,1) forwards; }
.coin.tossed .coin-inner { transform: rotateY(180deg); }
.coin.from-back .coin-inner { transform: rotateY(180deg); }
.coin.tossing-back .coin-inner { animation: flipBack 1.3s cubic-bezier(.3,.7,.4,1) forwards; }
@keyframes flip { 0% { transform: translateY(0) rotateY(0); } 45% { transform: translateY(-50px) rotateY(1260deg); } 100% { transform: translateY(0) rotateY(1980deg); } }
@keyframes flipBack { 0% { transform: translateY(0) rotateY(180deg); } 45% { transform: translateY(-50px) rotateY(1440deg); } 100% { transform: translateY(0) rotateY(2160deg); } }
.coin-hint { font-size: 13px; color: var(--on-dark-2); }
.coin-result { color: var(--gold); font-weight: 600; font-size: 14px; text-decoration: none; text-align: center; }

/* How it works */
.how { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: start; }
.how h2 { color: var(--bone); margin-bottom: 28px; }
.steps { list-style: none; padding: 0; margin: 0; counter-reset: s; }
.steps li { counter-increment: s; position: relative; padding: 0 0 22px 60px; }
.steps li::before { content: "0" counter(s); position: absolute; left: 0; top: 0; display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; border: 1.5px solid rgba(244,176,25,.6); color: var(--gold); font: 800 15px/1 var(--display); background: var(--ink); z-index: 1; }
.steps li::after { content: ""; position: absolute; left: 19px; top: 40px; bottom: 0; width: 2px; background: var(--line-dark); }
.steps li:last-child::after { display: none; }
.steps li.done::before { background: var(--gold); color: var(--ink); border-color: var(--gold); }
.steps li.now::before { background: var(--lime); color: var(--ink); border-color: var(--lime); box-shadow: 0 0 0 6px rgba(168,210,78,.2); }
.steps b { display: block; font: 700 21px/1.2 var(--display); color: var(--bone); margin-bottom: 2px; padding-top: 6px; }
.steps span { color: var(--on-dark-2); font-size: 15px; }
.phone-card { border-radius: var(--r); overflow: hidden; background: var(--ink-2); border: 1px solid var(--line-dark); }
.phone-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; object-position: 62% 40%; }
.phone-card-body { padding: 24px; }
.tools { list-style: none; padding: 0; margin: 0 0 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.tools li { padding: 12px 14px; border-radius: var(--r-sm); background: rgba(242,238,224,.05); border: 1px solid var(--line-dark); color: var(--bone); font: 700 16px/1.25 var(--display); }
.facts { list-style: none; padding: 0; margin: 0 0 14px; display: flex; flex-wrap: wrap; gap: 8px; }
.facts li { padding: 6px 12px 6px 28px; border-radius: 999px; background: rgba(168,210,78,.12) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12l4 4 8-8' fill='none' stroke='%23A8D24E' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") 9px center / 13px no-repeat; color: var(--lime); font-size: 13px; font-weight: 600; }
.phone-card .fine { color: var(--on-dark-2); }

/* Register */
.sec-register { background: radial-gradient(70% 60% at 50% 0%, #21401A 0%, var(--ink) 70%); color: var(--on-dark); }
.reg { max-width: 680px; }
.reg-head { text-align: center; margin-bottom: 28px; }
.reg-head .eyebrow { color: var(--lime); }
.reg-head h2 { color: var(--bone); margin-bottom: 10px; }
.reg-head p:last-child { color: var(--on-dark-2); }
.form-card { background: var(--paper); color: var(--text); border-radius: 22px; padding: clamp(22px, 4vw, 36px); box-shadow: 0 40px 80px -36px rgba(0,0,0,.8); }
.field { display: block; margin-bottom: 16px; }
.field > span { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 600; color: var(--ink); }
.field i, legend i { font-style: normal; font-weight: 400; color: var(--muted); }
.field input, .field select { width: 100%; min-height: 52px; padding: 12px 14px; border-radius: var(--r-sm); border: 1.5px solid var(--line); background: var(--white); font: 400 16px var(--text-font); color: var(--text); -webkit-appearance: none; appearance: none; }
.field select { background: var(--white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6' fill='none' stroke='%230F1B06' stroke-width='2.5'/%3E%3C/svg%3E") right 12px center / 18px no-repeat; padding-right: 40px; }
.field input:focus, .field select:focus { outline: none; border-color: var(--gold-deep); box-shadow: 0 0 0 4px rgba(244,176,25,.22); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.err { display: none; margin-top: 6px; font-size: 13px; font-style: normal; color: var(--danger); }
.invalid .err { display: block; }
.invalid input, .invalid select { border-color: var(--danger); }
.interests { display: flex; flex-wrap: wrap; gap: 8px; margin: 2px 0 18px; padding: 0; border: 0; }
.interests legend { margin-bottom: 10px; padding: 0; font-size: 14px; font-weight: 600; color: var(--ink); }
.chip { position: relative; }
.chip input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.chip span { display: inline-block; padding: 8px 14px; border-radius: 999px; border: 1.5px solid var(--line); background: var(--white); font-size: 14px; transition: all .15s; cursor: pointer; }
.chip input:checked + span { background: var(--ink); color: var(--gold); border-color: var(--ink); }
.chip input:focus-visible + span { outline: 3px solid var(--lime); outline-offset: 2px; }
.consents { display: grid; gap: 12px; margin-bottom: 20px; padding: 16px; border-radius: var(--r-sm); background: var(--bone); }
.check { display: grid; grid-template-columns: 22px 1fr; gap: 12px; align-items: start; font-size: 14px; line-height: 1.5; cursor: pointer; }
.check input { width: 20px; height: 20px; margin: 1px 0 0; accent-color: var(--ink); cursor: pointer; }
.check a { font-weight: 600; color: var(--ink); }
.check-draw { padding: 12px; border-radius: 10px; background: rgba(244,176,25,.2); font-weight: 600; }
.err-consent { margin: 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-card .fine { margin-top: 14px; text-align: center; }
.status { margin-bottom: 16px; padding: 12px 14px; border-radius: 10px; font-size: 14px; }
.status.error { background: #FBE9E7; color: var(--danger); }
.status.warn { background: #FFF4D6; color: #6B4B00; }
.success { text-align: center; padding: 12px 4px; outline: none; }
.success img { width: 110px; margin: 0 auto 16px; }
.success h3 { font-size: 34px; color: var(--ink); margin-bottom: 10px; }
.success p { color: var(--muted); margin-bottom: 14px; }
.ok-draw { color: var(--ink) !important; font-weight: 600; background: rgba(168,210,78,.28); padding: 10px 14px; border-radius: 10px; }

/* FAQ */
.faq { max-width: 820px; }
.accordion details { border-bottom: 1px solid var(--line); }
.accordion details:first-child { border-top: 1px solid var(--line); }
.accordion summary { position: relative; padding: 20px 44px 20px 0; cursor: pointer; list-style: none; font: 700 19px/1.35 var(--display); color: var(--ink); }
body.zh .accordion summary { font-size: 17px; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: ""; position: absolute; right: 6px; top: 50%; width: 12px; height: 12px; margin-top: -9px; border-right: 2px solid var(--gold-deep); border-bottom: 2px solid var(--gold-deep); transform: rotate(45deg); transition: transform .2s; }
.accordion details[open] summary::after { transform: rotate(-135deg); margin-top: -3px; }
.accordion p { padding: 0 0 20px; color: var(--muted); }
.accordion a { color: var(--ink); font-weight: 600; }

/* Closing */
.closing { background: var(--gold); padding: clamp(48px, 7vw, 76px) 0; text-align: center; }
.closing-inner { display: grid; justify-items: center; gap: 20px; }
.closing img { width: 84px; filter: drop-shadow(0 10px 14px rgba(15,27,6,.35)); }
.closing h2 { color: var(--ink); max-width: 760px; }

/* Footer */
.footer { background: var(--ink); color: var(--on-dark-2); padding: 40px 0 calc(40px + env(safe-area-inset-bottom)); font-size: 13.5px; }
.foot-top { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-bottom: 22px; border-bottom: 1px solid var(--line-dark); margin-bottom: 8px; }
.foot-site { color: var(--gold); text-decoration: none; }
.legal { border-bottom: 1px solid var(--line-dark); }
.legal summary { padding: 16px 0; cursor: pointer; color: var(--on-dark); font-weight: 600; list-style: none; display: flex; justify-content: space-between; }
.legal summary::-webkit-details-marker { display: none; }
.legal summary::after { content: "+"; color: var(--gold); font-size: 18px; }
.legal[open] summary::after { content: "–"; }
.legal p, .terms-list { margin: 0 0 12px; font-size: 13.5px; line-height: 1.6; }
.terms-list { padding-left: 20px; display: grid; gap: 6px; }
.pv-contact { font-weight: 600; }
.pv-contact a { color: var(--gold); }
.foot-legal { padding-top: 20px; }
.foot-legal p { margin-bottom: 8px; font-size: 12.5px; line-height: 1.6; }

/* Sticky mobile CTA */
.sticky-cta { position: fixed; left: 16px; right: 16px; bottom: calc(12px + env(safe-area-inset-bottom)); z-index: 40; display: none; padding: 15px; border-radius: 999px; background: var(--gold); color: var(--ink); font-weight: 700; text-align: center; text-decoration: none; box-shadow: 0 12px 28px -8px rgba(0,0,0,.6); transform: translateY(160%); transition: transform .3s; }
.sticky-cta.show { transform: none; }

/* Lucky-draw switch */
.is-draw-closed .draw-on { display: none !important; }
.is-draw-open .draw-off { display: none !important; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .header-nav { display: none; }
  .gets { grid-template-columns: 1fr 1fr; }
  .card-feature { grid-column: 1 / -1; }
  .about, .how { grid-template-columns: 1fr; }
  .coin-block { order: -1; }
}
@media (max-width: 680px) {
  body { font-size: 16px; }
  .header-actions { margin-left: auto; }
  .brand-word { font-size: 17px; }
  .hero-media img { aspect-ratio: 1 / 1; object-position: 71% 62%; }
  .hero-body { text-align: left; margin-top: -4px; }
  .lockup { font-size: 12px; gap: 8px; letter-spacing: .1em; }
  .hero-actions { justify-content: flex-start; flex-direction: column; align-items: stretch; text-align: center; }
  .hero-lead { margin-left: 0; }
  .event-bar { grid-template-columns: 1fr 1fr; }
  .event-bar li:nth-child(3) { border-left: 0; }
  .event-bar li:nth-child(n+3) { border-top: 1px solid var(--line-dark); }
  .event-bar b { font-size: 22px; }
  .sec-head { text-align: left; }
  .gets { grid-template-columns: 1fr; gap: 14px; }
  .card { padding: 22px; }
  .card-feature { grid-template-columns: 84px 1fr; gap: 16px; align-items: start; }
  .feature-coin { width: 84px; }
  .card-feature h3 { font-size: 22px; }
  .coin { width: min(220px, 58vw); }
  .tools { grid-template-columns: 1fr 1fr; }
  .tools li { font-size: 15px; padding: 10px 12px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .reg-head { text-align: left; }
  .sticky-cta { display: block; }
  .footer { padding-bottom: calc(96px + env(safe-area-inset-bottom)); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media (max-width: 680px) {
  body.zh .h1-top { font-size: clamp(30px, 9.2vw, 40px); }
  body.zh .event-bar b { font-size: 18px; }
}

/* ================= Readability pass ================= */
/* Partnership lockup: large, high-contrast, no tight tracking */
.lockup { display: inline-flex; align-items: center; gap: 16px; padding: 12px 22px; margin-bottom: 22px; border-radius: 14px; background: rgba(242,238,224,.06); border: 1px solid rgba(244,176,25,.35); font: inherit; letter-spacing: 0; text-transform: none; }
.lk-m { display: inline-flex; align-items: center; gap: 10px; font: 700 22px/1 var(--brand); letter-spacing: .06em; color: var(--gold); }
.lk-m img { width: 30px; }
.lk-x { font: 300 24px/1 var(--text-font); color: var(--on-dark-2); }
.lk-h { display: inline-flex; align-items: center; gap: 10px; font: 800 21px/1 var(--text-font); letter-spacing: .02em; color: #fff; }
.lk-h b { margin: 0; padding: 5px 9px; border-radius: 6px; background: var(--red); color: #fff; font: 800 16px/1 var(--text-font); letter-spacing: .03em; }
body.zh .lk-h { font-size: 21px; letter-spacing: .04em; }
/* Minimum readable sizes and contrast for small text */
.eyebrow { font-size: 13px; letter-spacing: .14em; }
.hero-partner { font-size: 14.5px; line-height: 1.5; color: var(--lime); }
.event-bar b { font-size: 28px; }
.event-bar span { font-size: 13.5px; letter-spacing: .02em; text-transform: none; color: var(--on-dark-2); }
.card p, .steps span { font-size: 16px; }
.fine { font-size: 13.5px; }
.tag { font-size: 12px !important; letter-spacing: .08em; padding: 6px 11px; }
.facts li { font-size: 14px; }
.tools li { font-size: 17px; }
.coin-hint { font-size: 14px; }
.check { font-size: 14.5px; }
.footer, .legal p, .terms-list { font-size: 14px; }
.foot-legal p { font-size: 13px; color: var(--on-dark-2); }
@media (max-width: 680px) {
  .lockup { gap: 10px; padding: 10px 14px; flex-wrap: wrap; }
  .lk-m { font-size: 17px; }
  .lk-m img { width: 24px; }
  .lk-x { font-size: 18px; }
  .lk-h { font-size: 16px; gap: 8px; }
  .lk-h b { font-size: 13px; padding: 4px 7px; }
  body.zh .lk-h { font-size: 17px; }
  .event-bar b { font-size: 23px; }
  body.zh .event-bar b { font-size: 19px; }
}
@media (max-width: 680px) {
  .lockup { flex-direction: column; align-items: flex-start; gap: 0; padding: 12px 16px; }
  .lk-x { display: none; }
  .lk-h { margin-top: 10px; padding-top: 10px; border-top: 1px solid rgba(244,176,25,.3); align-self: stretch; font-size: 18px; }
  body.zh .lk-h { font-size: 18px; }
}

/* ================= Content-hierarchy revision ================= */
h3 { font-family: var(--text-font); font-weight: 800; letter-spacing: -.01em; }
.sec-sixes { border-top: 4px solid var(--red); }
.sixes { display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
.sixes-copy .lead { margin: 16px 0 12px; }
.journey { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 10px; }
.journey li { display: flex; align-items: center; gap: 14px; padding: 12px 16px; border-radius: 12px; background: rgba(242,238,224,.06); border: 1px solid rgba(242,238,224,.12); font-size: 16.5px; font-weight: 600; color: var(--on-dark); }
.journey li:last-child { border-color: rgba(244,176,25,.55); background: rgba(244,176,25,.1); }
.journey b { flex: none; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--gold); color: var(--ink); font: 800 15px/1 var(--text-font); }
.about-solo { grid-template-columns: 1fr; max-width: 860px; }
.draw-note { margin-top: 12px; padding: 12px 14px; border-radius: 10px; background: rgba(244,176,25,.12); border-left: 3px solid var(--gold); font-size: 14.5px !important; line-height: 1.5; }
.field-row-1 { grid-template-columns: 1fr; }
.optional { margin: 4px 0 18px; border: 1px solid rgba(15,27,6,.14); border-radius: 12px; padding: 0 16px; }
.optional summary { cursor: pointer; padding: 14px 0; font-weight: 700; font-size: 15px; color: var(--ink); list-style: none; }
.optional summary::-webkit-details-marker { display: none; }
.optional summary::after { content: "+"; float: right; font-weight: 800; color: var(--gold-deep, #A87400); }
.optional[open] summary::after { content: "–"; }
.optional[open] { padding-bottom: 6px; }
.optional .interests { margin-bottom: 10px; }
@media (max-width: 980px) { .sixes { grid-template-columns: 1fr; } }
@media (max-width: 680px) {
  .hero-media img { aspect-ratio: 16 / 10; object-position: 66% 70%; }
  .journey li { font-size: 15.5px; padding: 11px 14px; }
  .sixes .coin-block { order: 0; }
}
/* Draw card: single column so the notice reads at full width; coin as a corner badge */
.card-feature { grid-template-columns: 1fr; position: relative; align-items: start; }
.card-feature .feature-coin { position: absolute; top: 20px; right: 20px; width: 78px; }
.card-feature .tag, .card-feature h3 { margin-right: 88px; }
/* Simpler secondary headings: serif kept for slogans and section titles */
.steps b { font: 800 19px/1.25 var(--text-font); letter-spacing: -.01em; }
.tools li { font: 700 15.5px/1.3 var(--text-font); }
.accordion summary { font: 700 17.5px/1.4 var(--text-font); }
body.zh .accordion summary { font-size: 17px; }
@media (max-width: 680px) { .card-feature .feature-coin { width: 64px; top: 18px; right: 18px; } .card-feature .tag, .card-feature h3 { margin-right: 72px; } }
/* Closing band: stadium night with gold glow, two-line slogan */
.closing { position: relative; overflow: hidden; color: var(--on-dark); background:
  radial-gradient(60% 70% at 50% 0%, rgba(244,176,25,.28), rgba(244,176,25,0) 70%),
  linear-gradient(180deg, rgba(15,27,6,.82), rgba(15,27,6,.94)),
  url("assets/hero-mat.webp") center 70% / cover no-repeat, var(--ink);
  border-top: 1px solid rgba(244,176,25,.4); padding: clamp(64px, 9vw, 110px) 0; }
.closing-inner { gap: 24px; }
.closing img { width: 104px; filter: drop-shadow(0 16px 24px rgba(0,0,0,.6)); }
.closing h2 { max-width: none; display: grid; gap: 10px; color: var(--bone); }
.fn-1 { font: 900 clamp(38px, 6.4vw, 80px)/1.02 var(--display); letter-spacing: -.02em; white-space: nowrap; color: #fff; }
.fn-2 { font: italic 800 clamp(22px, 3.4vw, 40px)/1.15 var(--display); color: var(--gold); }
body.zh .fn-1 { font-size: clamp(32px, 6vw, 68px); }
body.zh .fn-2 { font-style: normal; font-size: clamp(20px, 3vw, 34px); }
@media (max-width: 680px) { .fn-1 { font-size: clamp(34px, 10.4vw, 44px); } body.zh .fn-1 { font-size: clamp(30px, 9vw, 38px); } }
/* ================= Co-brand: M-STROKE × Hong Kong Sixes logo ================= */
.brand-group { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.co-x { color: var(--on-dark-2); font: 300 18px/1 var(--text-font); }
.hk6-chip { display: inline-flex; align-items: center; flex: none; padding: 3px 7px; border-radius: 9px; background: #F6F2E6; box-shadow: 0 4px 12px -6px rgba(0,0,0,.6); }
.hk6-chip img { display: block; height: 38px; width: auto; }
.hk6-chip-lg { padding: 6px 10px; border-radius: 12px; }
.hk6-chip-lg img { height: 64px; }
.lockup-logos { gap: 18px; padding: 12px 18px 12px 22px; }
.lk-hk { display: inline-flex; align-items: center; gap: 12px; }
.lk-hk b { padding: 6px 10px; border-radius: 6px; background: var(--red); color: #fff; font: 800 17px/1 var(--text-font); letter-spacing: .03em; }
@media (max-width: 980px) { .header-nav { display: none; } }
@media (max-width: 680px) {
  .brand-group { gap: 8px; }
  .brand img { width: 28px; }
  .brand-word { font-size: 15px; letter-spacing: .05em; }
  .co-x { font-size: 15px; }
  .hk6-chip { padding: 2px 5px; border-radius: 7px; }
  .hk6-chip img { height: 32px; }
  .lockup-logos { flex-direction: row; flex-wrap: nowrap; align-items: center; gap: 12px; padding: 10px 14px; }
  .lockup-logos .lk-x { display: inline; font-size: 18px; }
  .lockup-logos .lk-m { font-size: 16px; gap: 8px; }
  .lockup-logos .lk-m img { width: 24px; }
  .hk6-chip-lg img { height: 50px; }
  .lk-hk { gap: 8px; }
  .lk-hk b { font-size: 13px; padding: 4px 7px; }
}
@media (max-width: 430px) {
  .header-actions .btn-sm { display: none; }   /* hero CTA sits right below; sticky CTA takes over on scroll */
}
@media (max-width: 359px) {
  .brand-word { display: none; }
  .lockup-logos .lk-m { font-size: 14px; }
  .hk6-chip-lg img { height: 42px; }
}

/* ================= Cross-platform hardening (iOS · Android · Windows) ================= */
:root { color-scheme: light only; }
html { -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; }
a, button, summary, label, input, select { touch-action: manipulation; }
img { -webkit-user-drag: none; }
.shell { padding-left: max(var(--gut), env(safe-area-inset-left)); padding-right: max(var(--gut), env(safe-area-inset-right)); }
.sticky-cta { left: max(16px, env(safe-area-inset-left)); right: max(16px, env(safe-area-inset-right)); }
input[type="checkbox"] { width: 20px; height: 20px; accent-color: var(--gold-deep, #A87400); }
.field select::-ms-expand { display: none; }
input::-ms-clear, input::-ms-reveal { display: none; }
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) { .site-header.scrolled { background: rgba(15,27,6,.98); } }
@media (hover: none) { .btn:hover { transform: none; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; } }
@media (forced-colors: active) {
  .btn, .sticky-cta, .lang-toggle, .hk6-chip, .card, .form-card, .chip span, .optional { border: 1px solid CanvasText; forced-color-adjust: auto; }
  .hk6-chip, .coin img, .feature-coin { forced-color-adjust: none; }
}
@media (max-width: 340px) { .fn-1 { white-space: normal; } }
.hk6-chip-lg img { height: 78px; }
@media (max-width: 680px) { .hk6-chip-lg img { height: 54px; } }
@media (max-width: 359px) {
  .h1-top { font-size: 12.4vw; }
  .lockup-logos { flex-direction: column; align-items: flex-start; gap: 10px; }
  .lockup-logos .lk-x { display: none; }
  .lockup-logos .lk-m { font-size: 15px; }
  .hk6-chip-lg img { height: 48px; }
}
@media (max-width: 680px) {
  .h1-top { font-size: min(12.6vw, 72px); white-space: nowrap; }
  .h1-sub { font-size: min(5.5vw, 30px); }
  body.zh .h1-top { font-size: min(9.4vw, 52px); }
  body.zh .h1-sub { font-size: min(5.6vw, 28px); }
}

/* ================= Final design pass: alignment, colour, rhythm ================= */
/* Colour roles: gold = brand & action · lime = positive status only · bone = text on dark */
.eyebrow, .reg-head .eyebrow, .sec-dark .eyebrow { color: var(--gold); }
.sec-light .eyebrow { color: var(--gold-deep); }
.hero-partner { color: var(--on-dark-2); }
.hero-partner::before { content: ""; display: inline-block; width: 8px; height: 8px; margin-right: 10px; border-radius: 50%; background: var(--gold); vertical-align: 1px; }

/* One alignment axis: content sections align to the left edge of the grid;
   only the hero, the form and the closing band are centred */
.sec-head { max-width: 760px; margin: 0 0 clamp(28px, 4vw, 44px); text-align: left; }
.sec-head h2 { text-wrap: balance; }

/* Rhythm: tighter joins between related bands */
.sec-register { padding-bottom: clamp(56px, 7vw, 88px); }
#about { padding-bottom: clamp(36px, 4vw, 52px); }
#how { padding-top: clamp(36px, 4vw, 52px); }
#how .shell { border-top: 1px solid var(--line-dark); padding-top: clamp(36px, 4vw, 52px); }

/* What is M-STROKE: copy left, four pillars right */
.about { grid-template-columns: 1fr 1fr; align-items: center; max-width: none; }
.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 0; }
.pillars li { display: grid; gap: 6px; padding: 20px 20px 22px; border-radius: 14px; border: 1px solid rgba(244,176,25,.28); background: linear-gradient(160deg, rgba(244,176,25,.10), rgba(244,176,25,.02)); font: inherit; color: var(--on-dark-2); }
.pillars b { font: italic 800 24px/1.1 var(--display); color: var(--gold); }
.pillars span { font-size: 15px; line-height: 1.5; }
body.zh .pillars b { font-style: normal; font-size: 22px; }

/* Benefit cards: consistent inner alignment */
.gets { align-items: stretch; }
.gets .card { display: flex; flex-direction: column; }
.gets .card .icon { margin-bottom: 4px; }

/* FAQ: heading column + answers column */
.faq { max-width: none; display: grid; grid-template-columns: minmax(240px, .75fr) 1.25fr; gap: clamp(28px, 6vw, 80px); align-items: start; }
.faq .sec-head { margin: 0; position: sticky; top: 96px; }
.faq-cta { margin-top: 18px; }
.link-arrow-dark { color: var(--ink); border-bottom-color: rgba(15,27,6,.35); }
.link-arrow-dark::after { color: var(--gold-deep); }
.accordion details:first-child summary { padding-top: 6px; }

/* Event bar: never break the date */
.event-bar b { white-space: nowrap; }

@media (max-width: 980px) {
  .about { grid-template-columns: 1fr; gap: 28px; }
  .faq { grid-template-columns: 1fr; gap: 20px; }
  .faq .sec-head { position: static; }
}
@media (max-width: 680px) {
  .lockup-logos { display: flex; width: 100%; justify-content: space-between; box-sizing: border-box; }
  .event-bar li { padding: 16px 8px; }
  .event-bar b { font-size: 20px; }
  body.zh .event-bar b { font-size: 18px; }
  .pillars li { padding: 16px 14px 18px; }
  .pillars b { font-size: 21px; }
  .pillars span { font-size: 14px; }
  .sixes .coin { width: min(200px, 52vw); }
  .reg-head { text-align: left; }
}
@media (max-width: 359px) {
  .lockup-logos { justify-content: flex-start; }
  .event-bar b { font-size: 17px; }
  .pillars { grid-template-columns: 1fr; }
}
#how .shell { border-top: 0; background: linear-gradient(var(--line-dark), var(--line-dark)) no-repeat var(--gut) 0 / calc(100% - 2 * var(--gut)) 1px; }
.accordion details:first-child summary { padding-top: 20px; }
.foot-top .brand-word { display: inline; }
@media (max-width: 680px) { .foot-top { gap: 14px; flex-wrap: wrap; } }