/* Landing KeyStay — thiết kế: docs/LANDING-DESIGN.md. Nhận diện: xanh ngọc + hồng trên nền đen (public/brand/). */
:root {
  --ink: #0b0d0e; --ink-2: #14181a; --ink-3: #1d2326; --on-ink: #f2f5f5; --on-ink-2: #a9b4b6;
  --paper: #f7f7f8; --panel: #ffffff; --text: #111214; --text-2: #50545c; --line: #e7e8eb;
  --brand: #4fc3be; --pink: #ef73ba; --accent: #12807a; --accent-soft: #e5f3f2;
  --due: #e5484d; --part: #f5b83d; --paid: #2fb67c;
  --r: 12px; --wrap: 1160px;
  --font: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); color: var(--text); background: var(--paper); line-height: 1.55; font-size: 16px; overflow-x: hidden; }
h1, h2, h3 { line-height: 1.15; margin: 0; letter-spacing: -.02em; text-wrap: balance; }
p { margin: 0; }
a { color: inherit; }
img, svg { display: block; }
.wrap { width: min(100% - 32px, var(--wrap)); margin-inline: auto; }
.narrow { max-width: 820px; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: #fff; padding: 8px 12px; border-radius: 8px; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; border-radius: 6px; }
.wordmark { font-family: Montserrat, var(--font); font-weight: 600; letter-spacing: .32em; font-size: 15px; }
.muted { color: var(--text-2); }

/* Logo 2×2 */
.mark { display: inline-grid; grid-template-columns: repeat(2, 11px); gap: 3px; }
.mark i { width: 11px; height: 11px; border-radius: 2px; background: var(--brand); }
.mark i.p { background: var(--pink); }
.mark.big { grid-template-columns: repeat(2, 30px); gap: 7px; }
.mark.big i { width: 30px; height: 30px; border-radius: 4px; }

/* Nút */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 20px; border-radius: 10px; font-weight: 600; text-decoration: none; border: 1px solid transparent; transition: background .2s, border-color .2s, color .2s; }
.btn-primary { background: var(--brand); color: #04211f; }
.btn-primary:hover { background: #6dd3ce; }
.btn-ghost { border-color: rgba(255,255,255,.22); color: var(--on-ink); }
.btn-ghost:hover { border-color: rgba(255,255,255,.5); }
.btn-sm { min-height: 38px; padding: 0 14px; font-size: 14px; }
.btn-lg { min-height: 54px; padding: 0 28px; font-size: 17px; }
[data-magnet] { will-change: transform; }

/* Nav */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; color: var(--on-ink); transition: background .3s, border-color .3s; border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(11,13,14,.82); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-color: rgba(255,255,255,.08); }
.nav-in { display: flex; align-items: center; gap: 24px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; }
.nav .wordmark { color: var(--brand); }
.nav-links { display: flex; gap: 22px; margin-left: 12px; }
.nav-links a { text-decoration: none; color: var(--on-ink-2); font-size: 15px; font-weight: 500; }
.nav-links a:hover { color: var(--on-ink); }
.nav-cta { margin-left: auto; display: flex; align-items: center; gap: 16px; }
.link { text-decoration: none; font-weight: 500; font-size: 15px; color: var(--on-ink-2); }
.link:hover { color: var(--on-ink); }

/* Khối tối */
.dark { background: var(--ink); color: var(--on-ink); }
.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; }
.dark .eyebrow { color: var(--brand); }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 140px 0 96px; min-height: 100svh; display: flex; align-items: center; }
.hero-bg { position: absolute; inset: -10% 0; pointer-events: none; }
.grid-lines { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size: 56px 56px; mask-image: radial-gradient(ellipse 70% 60% at 60% 40%, #000 30%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse 70% 60% at 60% 40%, #000 30%, transparent 75%); }
.glow { position: absolute; border-radius: 50%; filter: blur(80px); opacity: .45; will-change: transform; }
.glow.g1 { width: 520px; height: 520px; background: var(--brand); right: -120px; top: 10%; opacity: .22; }
.glow.g2 { width: 360px; height: 360px; background: var(--pink); right: 22%; bottom: 0; opacity: .14; }
.hero-in { position: relative; display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.hero-title { font-size: clamp(36px, 4.8vw, 66px); font-weight: 800; margin-bottom: 22px; }
.hero-title .line { display: block; overflow: hidden; padding-bottom: .06em; }
.hero-title .line > span { display: inline-block; }
.hero-title em { font-style: normal; background: linear-gradient(90deg, var(--brand), #9fe3df 55%, var(--pink)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { font-size: clamp(17px, 1.6vw, 19px); color: var(--on-ink-2); max-width: 560px; margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 22px; }
.hero-note { font-size: 14px; color: var(--on-ink-2); }

/* Bản dựng Hôm nay */
.hero-visual { position: relative; min-height: 420px; display: grid; place-items: center; }
.logo-tiles { position: absolute; display: grid; grid-template-columns: repeat(2, 72px); gap: 14px; z-index: 2; visibility: hidden; } /* chỉ intro GSAP mới bật */
.logo-tiles i { width: 72px; height: 72px; border-radius: 8px; background: var(--brand); will-change: transform; }
.logo-tiles i.p { background: var(--pink); }
.board { width: min(100%, 470px); background: linear-gradient(180deg, var(--ink-3), var(--ink-2)); border: 1px solid rgba(255,255,255,.1); border-radius: 18px; padding: 18px; box-shadow: 0 30px 80px rgba(0,0,0,.45), 0 0 0 1px rgba(79,195,190,.06); will-change: transform; }
.board-head { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; font-size: 15px; }
.dotrow { display: inline-flex; gap: 5px; } .dotrow i { width: 9px; height: 9px; border-radius: 50%; background: #3a4144; }
.chip { margin-left: auto; font-size: 12px; color: var(--on-ink-2); border: 1px solid rgba(255,255,255,.12); border-radius: 999px; padding: 2px 9px; }
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 14px; }
.kpi { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); border-radius: 10px; padding: 9px 10px; border-top: 2px solid var(--brand); }
.kpi:nth-child(2) { border-top-color: var(--pink); }
.kpi small { display: block; font-size: 11px; color: var(--on-ink-2); }
.kpi b { display: block; font-size: 24px; line-height: 1.2; }
.kpi span { display: block; font-size: 10.5px; color: var(--on-ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mini-tl { display: grid; gap: 7px; margin-bottom: 12px; }
.mini-tl .row { display: grid; grid-template-columns: 34px 1fr; align-items: center; gap: 8px; font-size: 12px; color: var(--on-ink-2); }
.track { position: relative; height: 22px; border-radius: 6px; background: repeating-linear-gradient(90deg, rgba(255,255,255,.05) 0 1px, transparent 1px 16.66%); }
.bar { position: absolute; top: 2px; bottom: 2px; left: var(--l); width: var(--w); border-radius: 5px; overflow: hidden; transform-origin: left center; }
.bar.occ, .bk.occ { background: #3b5bfd; } .bar.arr, .bk.arr { background: #0d9488; }
.pay { position: absolute; left: 0; top: 0; bottom: 0; width: 5px; border-right: 1px solid rgba(255,255,255,.8); }
.pay.due { background: var(--due); } .pay.part { background: var(--part); } .pay.paid { background: var(--paid); }
.board-todo { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--on-ink-2); background: rgba(79,195,190,.08); border: 1px dashed rgba(79,195,190,.35); border-radius: 8px; padding: 8px 10px; }
.board-todo .d { width: 8px; height: 8px; border-radius: 50%; background: var(--brand); }

/* Số liệu */
.facts { background: var(--ink); color: var(--on-ink); border-top: 1px solid rgba(255,255,255,.08); }
.facts-in { display: grid; grid-template-columns: repeat(4, 1fr); }
.fact { padding: 30px 20px; border-left: 1px solid rgba(255,255,255,.08); }
.fact:first-child { border-left: 0; }
.fact b { display: block; font-size: clamp(30px, 3.4vw, 42px); font-weight: 800; color: var(--brand); font-variant-numeric: tabular-nums; }
.fact span { font-size: 14px; color: var(--on-ink-2); }

/* Section chung */
.section { padding: 110px 0; }
.section.alt { background: #eef1f1; }
.sec-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.sec-head.left { text-align: left; margin: 0; }
.sec-head h2 { font-size: clamp(30px, 3.8vw, 46px); font-weight: 800; margin-bottom: 14px; }
.sec-head p { color: var(--text-2); font-size: 17px; }
.dark .sec-head p { color: var(--on-ink-2); }

/* Trước / Với */
.vs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.vs-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 26px; }
.before { color: var(--text-2); text-decoration: line-through; text-decoration-color: rgba(229,72,77,.6); margin-bottom: 12px; padding-left: 26px; position: relative; }
.before::before { content: "✕"; position: absolute; left: 0; color: var(--due); font-weight: 700; text-decoration: none; }
.after { padding-left: 26px; position: relative; font-size: 17px; }
.after::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 800; }
.after b { color: var(--accent); }

/* Một ngày ở quầy */
.day { position: relative; }
.day-pin { min-height: 100vh; display: flex; align-items: center; padding: 84px 0 40px; }
@media (min-width: 961px) and (min-height: 640px) {
  /* Ghim vừa 1 màn hình (cùng điều kiện ghim trong landing.js): chỉ bước đang chọn hiện mô tả */
  .step p { max-height: 0; overflow: hidden; opacity: 0; transition: max-height .35s, opacity .35s; }
  .step.is-on p { max-height: 90px; opacity: 1; }
  .device { width: auto; height: min(560px, calc(100vh - 190px)); }
  .day-copy h2 { margin-bottom: 20px; }
}
.day-in { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.day-copy h2 { font-size: clamp(30px, 3.8vw, 46px); font-weight: 800; margin-bottom: 30px; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; position: relative; }
.step { padding: 14px 18px 14px 20px; border-left: 2px solid rgba(255,255,255,.12); opacity: .42; transition: opacity .3s, border-color .3s; }
.step.is-on { opacity: 1; border-left-color: var(--brand); }
.step time { font-size: 13px; font-weight: 700; color: var(--brand); font-variant-numeric: tabular-nums; }
.step h3 { font-size: 19px; margin: 2px 0 4px; }
.step p { color: var(--on-ink-2); font-size: 15px; }
.day-screen { display: grid; justify-items: center; gap: 18px; }
.device { position: relative; width: min(100%, 360px); aspect-ratio: 9 / 15; max-width: 100%; border-radius: 32px; background: var(--ink-2); border: 1px solid rgba(255,255,255,.12); box-shadow: 0 30px 80px rgba(0,0,0,.5), inset 0 0 0 6px #050607; overflow: hidden; }
.scr { position: absolute; inset: 6px; padding: 26px 20px; border-radius: 26px; background: linear-gradient(180deg, #141a1c, #0f1415); visibility: hidden; opacity: 0; }
.scr.is-on { visibility: visible; opacity: 1; }
.scr-title { font-weight: 700; font-size: 18px; margin-bottom: 16px; }
.scr-kpis { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-bottom: 16px; }
.scr-kpis span { background: rgba(255,255,255,.05); border-radius: 10px; padding: 10px; font-size: 12px; color: var(--on-ink-2); }
.scr-kpis b { display: block; font-size: 24px; color: var(--on-ink); }
.scr-list { display: grid; gap: 8px; }
.scr-list p { font-size: 12.5px; background: rgba(255,255,255,.04); border-radius: 8px; padding: 9px 10px; display: flex; justify-content: space-between; gap: 8px; color: var(--on-ink-2); }
.scr-list em { font-style: normal; color: var(--brand); font-weight: 600; white-space: nowrap; } .scr-list em.warn { color: var(--part); }
.qr { width: 136px; height: 136px; margin: 6px auto 18px; padding: 8px; background: #fff; border-radius: 10px; position: relative; overflow: hidden; }
.qr-svg { width: 100%; height: 100%; }
.qr .scan { position: absolute; left: 6px; right: 6px; top: 10%; height: 2px; background: var(--pink); box-shadow: 0 0 12px var(--pink); will-change: transform; }
.scr-form { display: grid; gap: 7px; margin-bottom: 14px; }
.scr-form p { font-size: 13px; background: rgba(255,255,255,.04); border-radius: 8px; padding: 7px 10px; }
.scr-form small { display: block; font-size: 10.5px; color: var(--on-ink-2); }
.ok { font-size: 12.5px; color: var(--paid); background: rgba(47,182,124,.12); border-radius: 8px; padding: 8px 10px; }
.rooms { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 14px; }
.r { text-align: center; padding: 16px 0; border-radius: 10px; background: rgba(255,255,255,.05); font-weight: 700; color: var(--on-ink-2); }
.r.on { background: rgba(79,195,190,.18); color: var(--brand); box-shadow: inset 0 0 0 1px rgba(79,195,190,.5); }
.r.dirty { color: var(--due); }
.hint { font-size: 12.5px; color: var(--on-ink-2); margin-bottom: 14px; }
.btnrow .b { display: block; text-align: center; background: var(--brand); color: #04211f; font-weight: 700; border-radius: 10px; padding: 11px; font-size: 14px; }
.receipt { background: #fff; color: #111; border-radius: 6px; padding: 16px; font-size: 12.5px; text-align: center; display: grid; gap: 5px; box-shadow: 0 10px 30px rgba(0,0,0,.4); }
.receipt b { font-size: 15px; letter-spacing: .06em; }
.receipt .big { font-size: 22px; font-weight: 800; }
.receipt .words { font-style: italic; color: #444; }
.receipt .sign { border-top: 1px dashed #bbb; padding-top: 8px; margin-top: 6px; color: #555; }
.audit { display: grid; gap: 8px; margin-bottom: 16px; }
.audit p { display: flex; justify-content: space-between; font-size: 13px; background: rgba(255,255,255,.04); border-radius: 8px; padding: 9px 10px; color: var(--on-ink-2); }
.audit b { color: var(--on-ink); } .audit .okc { color: var(--paid); }
.lock { font-size: 13px; text-align: center; color: var(--brand); border: 1px dashed rgba(79,195,190,.4); border-radius: 10px; padding: 10px; }
.progress { display: flex; gap: 8px; }
.progress i { width: 26px; height: 4px; border-radius: 2px; background: rgba(255,255,255,.15); transform-origin: left; }
.progress i.is-on { background: var(--brand); }

/* Sơ đồ phòng sống */
.split { display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; align-items: center; }
.tag { display: inline-block; padding: 0 7px; border-radius: 5px; font-size: 14px; font-weight: 600; color: #fff; }
.tag.due { background: var(--due); } .tag.part { background: #d99a12; } .tag.paid { background: var(--paid); }
.checks { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 10px; }
.checks li { padding-left: 28px; position: relative; }
.checks li::before { content: ""; position: absolute; left: 0; top: 6px; width: 16px; height: 16px; border-radius: 4px; background: var(--accent-soft); box-shadow: inset 0 0 0 1.5px var(--accent); }
.tl-demo { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 18px; box-shadow: 0 20px 60px rgba(17,18,20,.08); }
.tl-head, .tl-row { display: grid; grid-template-columns: 76px 1fr; align-items: center; }
.tl-head { grid-template-columns: 76px repeat(5, 1fr); font-size: 12px; font-weight: 600; color: var(--text-2); padding-bottom: 8px; }
.tl-row { border-top: 1px solid var(--line); min-height: 46px; font-size: 13px; font-weight: 600; }
.tl-row.un { background: #fff4f4; border-radius: 8px; border-top: 0; margin-bottom: 4px; }
.tl-row.un > span { color: var(--due); padding-left: 8px; font-size: 12px; }
.tl-row.target .trk { background-color: transparent; transition: background-color .3s; }
.tl-row.target.hot .trk { background-color: var(--accent-soft); }
.trk { position: relative; height: 34px; background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 20%); }
.bk { position: absolute; top: 5px; height: 24px; left: var(--l, 30%); width: var(--w, 46%); border-radius: 6px; color: #fff; font-style: normal; font-size: 11.5px; font-weight: 600; padding: 4px 8px 0 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#moving { --l: 30%; --w: 46%; z-index: 3; box-shadow: 0 10px 24px rgba(13,148,136,.35); will-change: transform; }
.cursor { position: absolute; left: 0; top: 0; z-index: 4; pointer-events: none; opacity: 0; will-change: transform; }

/* Kết nối 2 chiều OTA: tâm KeyStay + 8 kênh quanh vòng; chấm xanh đi ra (giá / phòng trống), chấm hồng đi về (booking) */
.ota-split { grid-template-columns: 1.05fr 1fr; }
.orbit { position: relative; width: min(100%, 520px); aspect-ratio: 1; margin-inline: auto; }
.orbit-lines { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.orbit-ring { fill: none; stroke: var(--line); stroke-width: 1.5; stroke-dasharray: 3 7; }
.ota-line { stroke: #b9dcda; stroke-width: 1.5; }
.pulse { fill: var(--brand); opacity: 0; }
.pulse.in { fill: var(--pink); }
.hub { position: absolute; left: 50%; top: 50%; width: 28%; aspect-ratio: 1; translate: -50% -50%; border-radius: 50%; display: grid; place-items: center; align-content: center; gap: 8px;
  background: radial-gradient(circle at 50% 35%, #1d2326, var(--ink)); color: var(--brand); box-shadow: 0 20px 50px rgba(11,13,14,.25), 0 0 0 8px rgba(79,195,190,.12); z-index: 2; }
.hub .wordmark { font-size: 11px; letter-spacing: .28em; }
.hub .mark.big { grid-template-columns: repeat(2, 20px); gap: 5px; }
.hub .mark.big i { width: 20px; height: 20px; }
.hub-ring { position: absolute; inset: -14px; border-radius: 50%; border: 2px dashed rgba(79,195,190,.55); will-change: transform; }
.ota-node { position: absolute; width: 0; height: 0; z-index: 3; }
.ota-chip { position: absolute; left: 0; top: 0; translate: -50% -50%; width: 92px; height: 92px; border-radius: 50%; display: grid; place-items: center; text-align: center; padding: 8px;
  background: var(--panel); border: 1.5px solid #cfe7e5; box-shadow: 0 10px 28px rgba(17,18,20,.08); font-weight: 800; font-size: 14px; line-height: 1.1; letter-spacing: -.01em; will-change: transform; }
.ota-chip em { font-style: normal; font-weight: 600; }
.ota-booking { color: #003580; white-space: nowrap; font-size: 13px; } .ota-booking em { color: #0071c2; }
.ota-trip { white-space: nowrap; }
.ota-expedia { color: #1e243a; }
.ota-airbnb { color: #ff385c; font-size: 15px; }
.ota-trip { color: #287dfa; }
.ota-agoda { color: #2a2a2e; font-size: 16px; letter-spacing: .06em; background-image: radial-gradient(circle, #e8262c 2.5px, transparent 3px), radial-gradient(circle, #f6a01a 2.5px, transparent 3px), radial-gradient(circle, #6cb33e 2.5px, transparent 3px), radial-gradient(circle, #7d3c98 2.5px, transparent 3px), radial-gradient(circle, #1a77d2 2.5px, transparent 3px);
  background-repeat: no-repeat; background-position: 26px 62px, 36px 62px, 46px 62px, 56px 62px, 66px 62px; }
.ota-google { color: #4285f4; font-size: 13px; } .ota-google em { color: #34a853; }
.ota-traveloka { color: #1ba0e2; font-size: 13px; }
.ota-tripadvisor { color: #00aa6c; font-size: 12.5px; }
.ota-chip.hit { border-color: var(--pink); box-shadow: 0 0 0 5px rgba(239,115,186,.18), 0 10px 28px rgba(17,18,20,.08); }
.sync-label { position: absolute; left: 50%; bottom: -6px; translate: -50% 0; display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; font-size: 12.5px; font-weight: 700; color: var(--accent);
  background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; box-shadow: 0 6px 18px rgba(17,18,20,.06); z-index: 4; }
.sync-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--paid); box-shadow: 0 0 0 4px rgba(47,182,124,.2); }
.grad { background: linear-gradient(90deg, var(--accent), #0d9488 50%, #c03583); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ota-cta { display: flex; align-items: center; gap: 14px; margin-top: 26px; padding: 14px 16px; border-radius: var(--r); background: var(--accent-soft); }
.ota-count { font-size: 34px; font-weight: 800; color: var(--accent); font-variant-numeric: tabular-nums; }
.ota-cta span { font-size: 14px; color: var(--text-2); }
.js #otaOrbit .ota-chip, .js #otaOrbit .hub, .js #otaOrbit .ota-line { visibility: hidden; }
@media (max-width: 640px) {
  .ota-chip { width: 64px; height: 64px; font-size: 10.5px; padding: 4px; }
  .ota-airbnb, .ota-agoda { font-size: 11.5px; }
  .ota-google, .ota-traveloka, .ota-tripadvisor, .ota-booking { font-size: 9.5px; }
  .ota-agoda { background-position: 15px 43px, 22px 43px, 29px 43px, 36px 43px, 43px 43px; background-size: auto; }
  .hub .mark.big { grid-template-columns: repeat(2, 13px); gap: 3px; } .hub .mark.big i { width: 13px; height: 13px; }
  .hub .wordmark { font-size: 8px; }
  .orbit { width: 100%; }
}

/* Module */
.mods { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.mod { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 26px; position: relative; }
.mod h3 { font-size: 20px; margin: 14px 0 8px; }
.mod p { color: var(--text-2); font-size: 15px; }
.st { display: inline-block; font-size: 12px; font-weight: 700; border-radius: 999px; padding: 3px 10px; }
.st.on { background: var(--accent-soft); color: var(--accent); }
.st.part { background: #fff3d6; color: #8a5b00; }
.st.soon { background: #f1eef8; color: #6a4fb3; }

/* An toàn */
.safe { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.safe-item { border-top: 2px solid var(--accent); padding-top: 18px; }
.safe-item b { display: block; font-size: 18px; margin-bottom: 8px; }
.safe-item p { color: var(--text-2); font-size: 15px; }

/* Hỏi đáp */
.faq { display: grid; gap: 10px; }
.faq details { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 0 22px; }
.faq summary { cursor: pointer; list-style: none; padding: 20px 30px 20px 0; font-weight: 600; font-size: 17px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 16px; font-size: 24px; font-weight: 400; color: var(--accent); transition: transform .25s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.ans { overflow: hidden; }
.ans p { color: var(--text-2); padding-bottom: 20px; }

/* Kêu gọi cuối */
.cta { padding: 120px 0; text-align: center; position: relative; overflow: hidden; }
.cta::before { content: ""; position: absolute; width: 640px; height: 640px; left: 50%; top: 50%; transform: translate(-50%, -50%); background: radial-gradient(circle, rgba(79,195,190,.18), transparent 60%); pointer-events: none; }
.cta-in { position: relative; display: grid; justify-items: center; gap: 22px; }
.cta h2 { font-size: clamp(30px, 4.4vw, 54px); font-weight: 800; }
.cta p { color: var(--on-ink-2); font-size: 18px; max-width: 560px; }

/* Chân trang */
.foot { background: var(--ink); color: var(--on-ink-2); padding: 40px 0; border-top: 1px solid rgba(255,255,255,.08); }
.foot .wordmark { color: var(--brand); }
.foot-in { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 32px; font-size: 14px; }
.foot-in .muted { margin-left: auto; color: var(--on-ink-2); }

/* Trước khi GSAP chạy: ẩn phần sẽ hiện dần (chỉ khi có JS; không có GSAP thì landing.js gỡ class) */
.js [data-reveal], .js [data-mod], .js [data-hero], .js .hero-title .line > span, .js .board { visibility: hidden; }

/* Màn hình nhỏ */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .hero { padding-top: 110px; min-height: auto; }
  .hero-in, .day-in, .split { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { min-height: 360px; }
  .facts-in { grid-template-columns: repeat(2, 1fr); }
  .fact:nth-child(3) { border-left: 0; }
  .fact { border-top: 1px solid rgba(255,255,255,.08); }
  .mods { grid-template-columns: repeat(2, 1fr); }
  .safe { grid-template-columns: repeat(2, 1fr); }
  .day-pin { min-height: auto; }
  .step { opacity: 1; }
  .day-screen { display: none; }
}
@media (max-width: 640px) {
  .nav-cta { gap: 12px; }
  .vs, .mods, .safe { grid-template-columns: 1fr; }
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 80px 0; }
  .sec-head { margin-bottom: 36px; }
  .logo-tiles { grid-template-columns: repeat(2, 52px); gap: 10px; }
  .logo-tiles i { width: 52px; height: 52px; }
  .tl-head, .tl-row { grid-template-columns: 58px 1fr; }
  .tl-head { grid-template-columns: 58px repeat(5, 1fr); }
  .foot-in .muted { margin-left: 0; }
}
@media (max-width: 420px) {
  .nav .wordmark { display: none; } /* chỉ giữ logo, đủ chỗ cho Đăng nhập + Dùng thử */
  .nav-cta .btn-sm { padding: 0 12px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}