/* ===================================================================
   Design tokens — kế thừa nguyên vẹn từ design-system/DESIGN_SYSTEM.md
   (đồng bộ với learn-site/assets/styles.css). Đổi màu/spacing ở đây sẽ
   đổi toàn bộ trang chủ. Không hard-code hex nơi khác.
   =================================================================== */
:root{
  --color-background:#f9f9f9;
  --color-surface:#ffffff;
  --color-surface-hover:#fbfbfb;
  --color-border:#ededed;
  --color-border-strong:#e3e3e3;
  --color-foreground:#262626;
  --color-body:#3a3a3a;
  --color-muted:#6b6b6b;
  --color-faint:#a3a3a3;
  --color-primary:#5cdd28;
  --color-primary-hover:#4ebc22;
  --color-primary-foreground:#0f2005;
  --color-heat:#5cdd28;
  --color-heat-ink:#337a16;
  --color-heat-soft:rgba(92,221,40,.08);
  --color-heat-border:rgba(92,221,40,.2);
  --color-secondary:rgba(0,0,0,.04);
  --color-secondary-hover:rgba(0,0,0,.07);
  --color-background-hover:rgba(0,0,0,.04);
  --color-success:#16a34a;
  --color-success-soft:rgba(22,163,74,.1);
  --color-warning:#d97706;
  --color-warning-soft:rgba(217,119,6,.1);
  --radius-md:.375rem;
  --radius-lg:.5rem;
  --radius-xl:.625rem;
  --radius-2xl:1rem;
  --shadow-card: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px -12px rgba(0,0,0,.08);
  --shadow-float: 0 1px 2px rgba(0,0,0,.04), 0 16px 40px -16px rgba(0,0,0,.14);
  --shadow-button: inset 0 -2px 0 rgba(0,0,0,.12), inset 0 1px 0 rgba(255,255,255,.2), 0 1px 2px rgba(92,221,40,.35);
  --font-sans: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
  --container-max: 1120px;
  color-scheme: light;
}
html.dark{
  --color-background:#0a0a0a;
  --color-surface:#111111;
  --color-surface-hover:#161616;
  --color-border:#1f1f1f;
  --color-border-strong:#2e2e2e;
  --color-foreground:#ededed;
  --color-body:#d4d4d4;
  --color-muted:#a1a1a1;
  --color-faint:#5e5e5e;
  --color-heat-ink:#9deb7e;
  --color-heat-soft:rgba(92,221,40,.14);
  --color-heat-border:rgba(92,221,40,.32);
  --color-secondary:rgba(255,255,255,.06);
  --color-secondary-hover:rgba(255,255,255,.1);
  --color-background-hover:rgba(255,255,255,.06);
  --color-success-soft:rgba(22,163,74,.16);
  --color-warning-soft:rgba(217,119,6,.16);
  --shadow-card: 0 0 0 1px rgba(255,255,255,.03), 0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-float: 0 0 0 1px rgba(255,255,255,.04), 0 16px 40px -16px rgba(0,0,0,.7);
  color-scheme: dark;
}

/* ============ RESET / BASE ============ */
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--color-background);
  color:var(--color-body);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  transition:background-color .2s ease,color .2s ease;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
ul,ol{list-style:none;margin:0;padding:0}
button{font:inherit;border:none;background:none;color:inherit;cursor:pointer}
code,pre{font-family:var(--font-mono)}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{text-wrap:balance}
p{text-wrap:pretty}
.heat{color:var(--color-heat)}
.container{max-width:var(--container-max);margin-inline:auto;padding-inline:20px}
@media(min-width:1024px){.container{padding-inline:40px}}

/* ============ HEADER ============ */
header.site-header{position:sticky;top:0;z-index:40;border-bottom:1px solid var(--color-border);background:color-mix(in srgb, var(--color-background) 90%, transparent);backdrop-filter:blur(12px)}
.header-inner{max-width:var(--container-max);margin-inline:auto;display:flex;align-items:center;gap:12px;height:64px;padding-inline:20px}
@media(min-width:1024px){.header-inner{padding-inline:40px}}
.brand{display:flex;align-items:center;gap:8px;font-size:17px;font-weight:600;letter-spacing:-.01em;color:var(--color-foreground)}
.logo-mark{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#4ebc22,#9deb7e);display:grid;place-items:center;color:#0f2005;font-size:12px;font-weight:700;font-family:var(--font-mono);flex-shrink:0}
.header-right{margin-left:auto;display:flex;align-items:center;gap:8px}
.icon-btn{display:grid;place-items:center;width:36px;height:36px;border-radius:var(--radius-xl);color:var(--color-foreground)}
.icon-btn:hover{background:var(--color-background-hover)}

/* ============ BUTTONS ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-xl);padding:10px 16px;font-size:14px;font-weight:500;line-height:1.25;white-space:nowrap;cursor:pointer;transition:background-color .15s ease}
.btn-primary{background:var(--color-primary);color:var(--color-primary-foreground);box-shadow:var(--shadow-button)}
.btn-primary:hover{background:var(--color-primary-hover)}
.btn-secondary{background:var(--color-secondary);color:var(--color-foreground)}
.btn-secondary:hover{background:var(--color-secondary-hover)}
.btn-sm{padding:6px 12px;font-size:13px;border-radius:var(--radius-lg)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none}

/* ============ BADGES / CHIPS ============ */
.badge{display:inline-flex;align-items:center;gap:4px;border-radius:var(--radius-md);padding:2px 8px;font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.025em;text-transform:uppercase;background:var(--color-secondary);color:var(--color-muted)}
.badge-soon{background:var(--color-heat-soft);color:var(--color-heat-ink)}
.chip{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--color-border-strong);border-radius:9999px;padding:6px 14px;font-size:13px;font-weight:500;color:var(--color-muted);background:var(--color-surface)}
.chip svg{width:16px;height:16px;flex-shrink:0;color:var(--color-foreground)}

/* ============ SECTION HEADER (eyebrow + h2 + lead) ============ */
.eyebrow{display:inline-flex;align-items:center;gap:8px;border-bottom:1px solid var(--color-border);padding-bottom:8px;font-size:13px;font-weight:500;color:var(--color-foreground)}
.eyebrow .slash{font-family:var(--font-mono);color:var(--color-faint)}
.section{padding:64px 0}
.section-head{max-width:40rem}
.section-head.center{margin-inline:auto;text-align:center}
h2.section-title{margin-top:16px;font-size:28px;font-weight:500;letter-spacing:-.02em;color:var(--color-foreground)}
@media(min-width:640px){h2.section-title{font-size:34px}}
.section-lead{margin-top:14px;font-size:15px;color:var(--color-muted)}
@media(min-width:640px){.section-lead{font-size:16px}}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;padding:72px 0 40px;text-align:center}
@media(min-width:640px){.hero{padding:96px 0 56px}}
.hero-bg{position:absolute;inset-inline:0;top:0;height:560px;overflow:hidden;pointer-events:none}
.bg-cells{
  position:absolute;inset:0;
  background-image:
    linear-gradient(to right, var(--color-border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--color-border) 1px, transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 60% 55% at 50% 25%, black 35%, transparent 80%);
  mask-image:radial-gradient(ellipse 60% 55% at 50% 25%, black 35%, transparent 80%);
}
.hero-fade{position:absolute;inset-inline:0;bottom:0;height:160px;background:linear-gradient(to bottom, transparent, var(--color-background))}
.hero-inner{position:relative}
h1.hero-title{margin-top:24px;font-size:34px;font-weight:500;letter-spacing:-.025em;line-height:1.15;color:var(--color-foreground);max-width:40rem;margin-inline:auto}
@media(min-width:640px){h1.hero-title{font-size:54px}}
.hero-sub{margin-top:20px;max-width:34rem;margin-inline:auto;color:var(--color-muted);font-size:16px}
@media(min-width:640px){.hero-sub{font-size:18px}}
.hero-meta{margin-top:10px;font-size:13px;color:var(--color-faint);font-family:var(--font-mono)}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;justify-content:center;gap:12px}

/* ============ INSTALL BLOCK (copy lệnh cho AI) ============ */
.install-block{position:relative;margin:40px auto 0;max-width:42rem;border:1px solid var(--color-heat-border);border-radius:var(--radius-xl);background:var(--color-surface);box-shadow:0 0 0 1px var(--color-heat-border), 0 16px 40px -16px rgba(250,93,25,.35), var(--shadow-float);overflow:hidden;text-align:left}
.install-block::before{content:"";position:absolute;inset-inline:0;top:0;height:3px;background:linear-gradient(90deg, var(--color-heat), var(--color-heat-ink), var(--color-heat))}
.install-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 14px;border-bottom:1px solid var(--color-heat-border);background:var(--color-heat-soft)}
.install-head span{font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;text-transform:uppercase;color:var(--color-heat-ink);font-weight:600}
.install-copy{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:500;color:var(--color-foreground);padding:4px 10px;border-radius:var(--radius-md)}
.install-copy:hover{background:var(--color-background-hover)}
.install-copy.copied{color:var(--color-success)}
.install-copy svg{width:14px;height:14px}
.install-body{margin:0;padding:16px;font-family:var(--font-mono);font-size:13px;line-height:1.7;color:var(--color-body);white-space:pre-wrap;word-break:break-word;text-align:left}
.install-note{padding:0 16px 14px;font-size:12px;color:var(--color-faint)}

/* ============ COMPAT ROW (dùng được với) ============ */
.compat-row{margin-top:32px;display:flex;flex-direction:column;align-items:center;gap:12px}
.compat-label{font-size:12px;color:var(--color-faint);font-family:var(--font-mono);letter-spacing:.05em;text-transform:uppercase}
.compat-chips{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}

/* ============ SKILL CARDS (thành phần) ============ */
.skill-grid{margin-top:40px;display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.skill-grid{grid-template-columns:repeat(3,1fr)}}
.skill-card{display:flex;flex-direction:column;border:1px solid var(--color-border-strong);border-radius:var(--radius-2xl);background:var(--color-surface);box-shadow:var(--shadow-card);padding:24px}
.skill-card.is-soon{background:var(--color-background);box-shadow:none}
.skill-card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}
.skill-title{font-size:17px;font-weight:600;color:var(--color-foreground)}
.skill-desc{margin-top:10px;font-size:14px;color:var(--color-muted);flex:1}
.skill-features{margin-top:14px;display:flex;flex-direction:column;gap:6px}
.skill-features li{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--color-body)}
.skill-features svg{flex-shrink:0;margin-top:2px;width:14px;height:14px;color:var(--color-heat)}
.skill-card .btn{margin-top:18px;align-self:flex-start}

/* ============ BREADCRUMB BACK (trang chi tiết skill) ============ */
.breadcrumb-back{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--color-muted)}
.breadcrumb-back:hover{color:var(--color-foreground)}
.breadcrumb-back svg{width:14px;height:14px}

/* ============ PROCESS LIST (quy trình từng bước, trang chi tiết skill) ============ */
.process-list{margin-top:40px;display:flex;flex-direction:column;gap:1px;background:var(--color-border);border:1px solid var(--color-border);border-radius:var(--radius-2xl);overflow:hidden}
.process-step{display:flex;gap:16px;background:var(--color-background);padding:22px 24px}
.process-num{flex-shrink:0;width:36px;height:36px;border-radius:var(--radius-xl);border:1px solid var(--color-border-strong);background:var(--color-surface);display:grid;place-items:center;font-family:var(--font-mono);font-size:14px;font-weight:500;color:var(--color-heat)}
.process-body{flex:1;min-width:0;padding-top:4px}
.process-mascot{display:none;width:76px;height:76px;object-fit:contain;flex-shrink:0;align-self:center}
@media(min-width:640px){.process-mascot{display:block}}

/* ============ CORNER MASCOT (trang chủ, nền section, có motion bồng bềnh) ============ */
.section{position:relative}
.corner-mascot{display:none;position:absolute;width:112px;height:112px;object-fit:contain;pointer-events:none;opacity:.92;z-index:0}
@media(min-width:900px){.corner-mascot{display:block}}
.corner-mascot.br{right:0;bottom:-10px}
.corner-mascot.bl{left:0;bottom:-10px}
.process-title{font-size:15px;font-weight:600;color:var(--color-foreground)}
.process-desc{margin-top:6px;font-size:13px;color:var(--color-muted)}

/* ============ DEMO CARD (link sang demo mẫu thật) ============ */
.demo-card{margin-top:32px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;border:1px solid var(--color-border-strong);border-radius:var(--radius-2xl);background:var(--color-surface);box-shadow:var(--shadow-card);padding:24px}
.demo-card-title{font-size:16px;font-weight:600;color:var(--color-foreground)}
.demo-card-desc{margin-top:6px;font-size:13px;color:var(--color-muted);max-width:32rem}

/* ============ TEMPLATE GRID (danh sách template có sẵn) ============ */
.template-grid{margin-top:40px;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(min-width:640px){.template-grid{grid-template-columns:repeat(4,1fr)}}
.template-card{display:flex;flex-direction:column;border:1px solid var(--color-border-strong);border-radius:var(--radius-xl);background:var(--color-surface);box-shadow:var(--shadow-card);overflow:hidden}
.template-card-img-wrap{position:relative;overflow:hidden;aspect-ratio:3/4;background:var(--color-secondary)}
.template-card-img-wrap img{display:block;width:100%;height:auto;transform:translateY(0);transition:transform 2.8s ease}
.template-card-img-wrap:hover img{transform:translateY(-25%)}
.template-card-body{padding:12px 14px 14px}
.template-card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:6px;flex-wrap:wrap}
.template-title{font-size:13px;font-weight:600;color:var(--color-foreground);line-height:1.3}
.template-desc{margin-top:6px;font-size:12px;line-height:1.5;color:var(--color-muted)}

/* Spacing scale from design-system/tokens.css, scoped to the skill role section. */
.skill-role{--space-2:.5rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem}
.role-flow{position:relative;isolation:isolate;margin:var(--space-7) auto 0;max-width:50rem}
.role-flow-bg{z-index:-1}
.role-inputs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-4)}
.role-build{--branch:var(--color-flow-build);--branch-ink:var(--color-flow-build-ink)}
.role-design{--branch:var(--color-flow-design);--branch-ink:var(--color-flow-design-ink)}
.role-document{position:relative;padding:var(--space-5);border:1px solid color-mix(in srgb,var(--branch) 45%,var(--color-border));border-radius:var(--radius-2xl);background:linear-gradient(135deg,color-mix(in srgb,var(--branch) 13%,var(--color-surface)),var(--color-surface));box-shadow:inset 0 2px 0 color-mix(in srgb,var(--branch) 60%,transparent),var(--shadow-card)}
.role-document::after{content:"";position:absolute;bottom:-5px;left:calc(50% - 5px);width:10px;height:10px;border:2px solid var(--color-surface);border-radius:50%;background:var(--branch);box-shadow:0 0 12px color-mix(in srgb,var(--branch) 55%,transparent)}
.role-document-top{display:flex;align-items:center;gap:var(--space-2);margin-bottom:var(--space-5)}
.role-symbol{display:grid;place-items:center;width:36px;height:36px;border-radius:var(--radius-lg);background:color-mix(in srgb,var(--branch) 16%,transparent);color:var(--branch-ink);font:500 18px var(--font-mono)}
.role-label{font:500 12px var(--font-mono);color:var(--branch-ink);letter-spacing:.04em}
.role-document h3{margin-top:var(--space-2);font-size:20px;font-weight:500;color:var(--color-foreground)}
.role-document p{margin-top:var(--space-2);font-size:14px;color:var(--color-muted)}
.role-wires{width:100%;height:var(--space-flow-wire);overflow:visible;fill:none;stroke-width:2;stroke-linecap:round}
.role-wires path{vector-effect:non-scaling-stroke}
.role-wire-build{stroke:var(--color-flow-build)}
.role-wire-design{stroke:var(--color-flow-design)}
.role-wires path:not(.role-wire-pulse){opacity:.4}
.role-wire-pulse{stroke-dasharray:16 330;stroke-dashoffset:346;animation:role-stream 3.5s linear infinite;filter:drop-shadow(0 0 4px currentColor)}
@keyframes role-stream{to{stroke-dashoffset:0}}
.role-agent,.role-result{position:relative;margin-inline:auto;padding:var(--space-5);border:1px solid transparent;border-radius:var(--radius-2xl);text-align:center}
.role-agent{max-width:36rem;display:flex;align-items:center;justify-content:center;gap:var(--space-4);background:linear-gradient(var(--color-surface),var(--color-surface)) padding-box,linear-gradient(110deg,var(--color-flow-build),var(--color-flow-design)) border-box;box-shadow:0 8px 40px color-mix(in srgb,var(--color-flow-design) 12%,transparent)}
.role-ai-symbol{display:grid;place-items:center;flex-shrink:0;width:52px;height:52px;border-radius:var(--radius-xl);font:500 20px var(--font-mono);color:var(--color-foreground);background:linear-gradient(135deg,color-mix(in srgb,var(--color-flow-build) 25%,var(--color-surface)),color-mix(in srgb,var(--color-flow-design) 30%,var(--color-surface)));border:1px solid var(--color-border-strong)}
.role-agent strong,.role-result strong{display:block;font-weight:500;color:var(--color-foreground);font-size:18px}
.role-agent span,.role-result span{display:block;margin-top:var(--space-2);font-size:13px;color:var(--color-muted)}
.role-output-wire{position:relative;width:2px;height:var(--space-7);margin:auto;background:linear-gradient(var(--color-flow-design),var(--color-flow-build))}
.role-output-wire span{position:absolute;width:6px;height:6px;left:-2px;border-radius:50%;background:var(--color-flow-build);box-shadow:0 0 10px var(--color-flow-build);animation:role-drop 2s ease-in-out infinite}
@keyframes role-drop{from{top:0;opacity:0}30%{opacity:1}to{top:100%;opacity:0}}
.role-result{max-width:36rem;padding:var(--space-6) var(--space-5);background:linear-gradient(120deg,color-mix(in srgb,var(--color-flow-build) 17%,var(--color-surface)),var(--color-surface) 55%,color-mix(in srgb,var(--color-flow-design) 14%,var(--color-surface))) padding-box,linear-gradient(110deg,var(--color-flow-build),var(--color-flow-design)) border-box;box-shadow:var(--shadow-float)}
.role-result strong{font-size:clamp(24px,3vw,34px);line-height:1.25;letter-spacing:-.025em}
.role-result .role-result-label{margin:0 0 var(--space-4);font:500 11px var(--font-mono);letter-spacing:.12em;color:var(--color-flow-build-ink)}
.role-caption{margin-top:var(--space-4);text-align:center;font-size:12px;color:var(--color-muted)}
.role-benefits-head{margin-top:var(--space-7)}
.role-benefits-title{font-size:24px;font-weight:500;color:var(--color-foreground)}
@media(max-width:600px){.role-document{padding:var(--space-4)}.role-document-top{flex-direction:column;align-items:flex-start;margin-bottom:var(--space-4)}.role-label{font-size:10px}.role-document h3{font-size:17px}.role-document p{font-size:12px}.role-agent{flex-direction:column}.role-agent strong{font-size:17px}.role-flow{--space-flow-wire:4rem}}
@media(prefers-reduced-motion:reduce){.role-wire-pulse,.role-output-wire span{animation:none}.role-output-wire span{top:50%}}

/* ============ FEATURE CARDS (nổi bật) ============ */
.feature-grid{margin-top:40px;display:grid;grid-template-columns:1fr;gap:1px;background:var(--color-border);border:1px solid var(--color-border);border-radius:var(--radius-2xl);overflow:hidden}
@media(min-width:768px){.feature-grid{grid-template-columns:repeat(3,1fr)}}
.feature-card{background:var(--color-background);padding:24px}
.feature-title{font-size:15px;font-weight:600;color:var(--color-foreground)}
.feature-desc{margin-top:8px;font-size:13px;color:var(--color-muted)}

/* ============ SOCIAL PROOF MARQUEE (2 hàng chạy ngược chiều) ============ */
.marquee-wrap{margin-top:40px;display:flex;flex-direction:column;gap:16px;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,black 8%,black 92%,transparent);mask-image:linear-gradient(90deg,transparent,black 8%,black 92%,transparent)}
.marquee-track{display:flex;gap:16px;width:max-content;animation:marquee-scroll 36s linear infinite}
.marquee-track.reverse{animation-direction:reverse}
@keyframes marquee-scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.proof-card{flex-shrink:0;position:relative;width:200px;aspect-ratio:9/16;border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--color-border-strong);background:var(--color-secondary)}
.proof-card img{width:100%;height:100%;object-fit:cover;object-position:top;display:block}
.proof-card-label{position:absolute;inset-inline:0;bottom:0;padding:8px 10px 7px;font-size:11px;color:#fff;background:linear-gradient(to top, rgba(0,0,0,.7), transparent)}

/* ============ PRICING CTA (gói bán) ============ */
.price-fan{display:flex;justify-content:center;margin-top:36px}
.price-fan img{width:84px;aspect-ratio:3/4;object-fit:cover;object-position:top;border-radius:var(--radius-md);border:2px solid var(--color-surface);box-shadow:var(--shadow-float);margin-inline:-14px;transition:transform .2s ease}
.price-fan img:nth-child(1){transform:rotate(-9deg)}
.price-fan img:nth-child(2){transform:rotate(-3deg) translateY(-6px);z-index:1}
.price-fan img:nth-child(3){transform:rotate(3deg) translateY(-6px);z-index:1}
.price-fan img:nth-child(4){transform:rotate(9deg)}
.price-fan:hover img{transform:none;margin-inline:-6px}
.price-card{margin-top:4px;max-width:34rem;margin-inline:auto;border:1px solid var(--color-border-strong);border-radius:var(--radius-2xl);background:var(--color-surface);box-shadow:var(--shadow-float);padding:36px;text-align:center}
.price-tag{margin-top:14px;font-size:40px;font-weight:600;color:var(--color-foreground);letter-spacing:-.02em}
.price-tag .unit{font-size:15px;font-weight:500;color:var(--color-muted);margin-left:4px}
.price-list{margin-top:22px;display:flex;flex-direction:column;gap:10px;text-align:left}
.price-list li{display:flex;gap:8px;font-size:14px;color:var(--color-body)}
.price-list svg{flex-shrink:0;width:16px;height:16px;color:var(--color-heat);margin-top:3px}
.price-card .btn{margin-top:26px;width:100%}
.price-note{margin-top:12px;font-size:12px;color:var(--color-faint)}

/* ============ OFFER PAGE (mua lẻ hoặc Full Access) ============ */
.offer-hero{padding-bottom:28px}
.offer-status{margin-top:18px;display:inline-flex;align-items:center;gap:8px;border:1px solid var(--color-heat-border);border-radius:9999px;padding:7px 12px;background:var(--color-heat-soft);color:var(--color-heat-ink);font-family:var(--font-mono);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.offer-status::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--color-heat)}
.offer-grid{margin-top:40px;display:grid;grid-template-columns:1fr;gap:20px;align-items:stretch}
@media(min-width:800px){.offer-grid{grid-template-columns:1fr 1fr}}
.offer-card{position:relative;display:flex;flex-direction:column;border:1px solid var(--color-border-strong);border-radius:var(--radius-2xl);background:var(--color-surface);box-shadow:var(--shadow-card);overflow:hidden}
.offer-card.is-featured{border-color:var(--color-heat-border);box-shadow:0 0 0 1px var(--color-heat-border),var(--shadow-float)}
.offer-card.is-featured::before{content:"";position:absolute;inset-inline:0;top:0;height:3px;background:var(--color-heat)}
.offer-card-head{padding:26px 26px 22px;border-bottom:1px solid var(--color-border)}
.offer-card-label{font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--color-foreground)}
.offer-card-title{margin-top:10px;font-size:24px;font-weight:600;line-height:1.25;color:var(--color-foreground)}
.offer-card-desc{margin-top:10px;font-size:14px;color:var(--color-muted)}
.offer-price{margin-top:20px;font-size:25px;font-weight:600;color:var(--color-foreground)}
.offer-price-note{margin-top:2px;font-size:12px;color:var(--color-faint)}
.offer-card-body{display:flex;flex:1;flex-direction:column;padding:24px 26px 26px}
.offer-benefits{display:flex;flex-direction:column;gap:11px}
.offer-benefits li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--color-body)}
.offer-benefits svg{width:16px;height:16px;flex-shrink:0;margin-top:3px;color:var(--color-heat)}
.offer-card .btn{width:100%;margin-top:auto;padding-top:12px;padding-bottom:12px}
.offer-card-cta{padding-top:28px}
.offer-card-hint{margin-top:10px;text-align:center;font-size:12px;color:var(--color-faint)}
.offer-product{margin-top:20px;border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:15px;background:var(--color-background)}
.offer-product-top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.offer-product-name{font-size:14px;font-weight:600;color:var(--color-foreground)}
.offer-product p{margin-top:5px;font-size:12px;color:var(--color-muted)}
.compare-wrap{margin-top:40px;border:1px solid var(--color-border-strong);border-radius:var(--radius-2xl);overflow-x:auto;background:var(--color-surface)}
.compare-table{width:100%;min-width:620px;border-collapse:collapse;text-align:left}
.compare-table th,.compare-table td{padding:15px 18px;border-bottom:1px solid var(--color-border);font-size:13px}
.compare-table th{font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;text-transform:uppercase;color:var(--color-muted);background:var(--color-background)}
.compare-table td:first-child{font-weight:500;color:var(--color-foreground)}
.compare-table tr:last-child td{border-bottom:0}
.compare-yes{color:var(--color-heat-ink);font-weight:600}
.compare-no{color:var(--color-faint)}
.offer-note{margin-top:28px;border-left:3px solid var(--color-heat);padding:14px 16px;background:var(--color-heat-soft);font-size:13px;color:var(--color-muted)}

/* ============ TESTIMONIALS (đánh giá khách hàng) ============ */
.testimonial-marquee{margin-top:40px;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,black 6%,black 94%,transparent);mask-image:linear-gradient(90deg,transparent,black 6%,black 94%,transparent)}
.testimonial-track{display:flex;gap:20px;width:max-content;animation:marquee-scroll 80s linear infinite}
.testimonial-track:hover{animation-play-state:paused}
.testimonial-card{flex-shrink:0;width:320px;display:flex;flex-direction:column;gap:14px;border:1px solid var(--color-border-strong);border-radius:var(--radius-2xl);background:var(--color-surface);box-shadow:var(--shadow-card);padding:22px;text-align:left}
.testimonial-stars{display:flex;gap:2px;color:var(--color-heat)}
.testimonial-stars svg{width:14px;height:14px}
.testimonial-quote{font-size:14px;color:var(--color-body);flex:1}
.testimonial-author{font-size:13px;font-weight:600;color:var(--color-foreground)}
.testimonial-role{font-size:12px;color:var(--color-muted)}

/* ============ FAQ (accordion, dùng <details> — không cần JS) ============ */
.faq-list{margin-top:40px;display:flex;flex-direction:column;gap:1px;background:var(--color-border);border:1px solid var(--color-border);border-radius:var(--radius-2xl);overflow:hidden}
.faq-item{background:var(--color-background)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 22px;font-size:14px;font-weight:600;color:var(--color-foreground)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary svg{flex-shrink:0;width:16px;height:16px;color:var(--color-faint);transition:transform .2s ease}
.faq-item[open] summary svg{transform:rotate(45deg)}
.faq-item p{margin:0;padding:0 22px 18px;font-size:13px;color:var(--color-muted)}

/* ============ FOOTER ============ */
footer.site-footer{border-top:1px solid var(--color-border);margin-top:40px}
.footer-inner{max-width:var(--container-max);margin-inline:auto;padding:32px 20px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;font-size:13px;color:var(--color-muted)}
@media(min-width:1024px){.footer-inner{padding:32px 40px}}
.footer-inner a:hover{color:var(--color-foreground);text-decoration:underline;text-underline-offset:4px}

/* ============ CUSTOM CURSOR (chấm + vòng đuổi theo chuột, chỉ bật khi JS xác nhận có chuột thật) ============ */
body.custom-cursor,body.custom-cursor *{cursor:none}
.cursor-dot{position:fixed;top:0;left:0;width:8px;height:8px;margin:-4px 0 0 -4px;border-radius:50%;background:var(--color-heat);pointer-events:none;z-index:9999}
.cursor-ring{position:fixed;top:0;left:0;width:36px;height:36px;margin:-18px 0 0 -18px;border-radius:50%;border:1.5px solid var(--color-heat);pointer-events:none;z-index:9998;opacity:.55;transition:width .25s ease,height .25s ease,margin .25s ease,opacity .25s ease,background-color .25s ease}
.cursor-ring.is-hover{width:56px;height:56px;margin:-28px 0 0 -28px;opacity:1;background:var(--color-heat-soft)}
@media (hover:none),(pointer:coarse){.cursor-dot,.cursor-ring{display:none!important}}