/* Soi — giấy ngà, mực xanh đen, nước sâu, điểm nhấn đỏ son. */
:root {
  --paper: #f3eee4;
  --surface: #fbf8f2;
  --ink: #10201e;
  --ink-2: #4a5754;
  --line: rgba(16, 32, 30, .14);
  --water: #1f5e5b;
  --water-2: #4e9c93;
  --foam: #d5e6df;
  --coral: #e4572e;
  --gold: #d99a2b;
  --t-O: #e4572e;
  --t-E: #d99a2b;
  --t-C: #1f5e5b;
  --t-A: #c44569;
  --t-S: #3a6ea5;
  --wave-1: rgba(31, 94, 91, .10);
  --wave-2: rgba(78, 156, 147, .12);
  --wave-3: rgba(31, 94, 91, .07);
  --serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --sans: 'Be Vietnam Pro', system-ui, sans-serif;
  --radius: 22px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0d1716;
    --surface: #142220;
    --ink: #ece6d9;
    --ink-2: #a8b3ae;
    --line: rgba(236, 230, 217, .14);
    --water: #6fbdb2;
    --water-2: #3d8a80;
    --foam: #1d3532;
    --coral: #f06a43;
    --t-C: #5fb3a7;
    --t-S: #6b9bd1;
    --t-A: #e0688a;
    --wave-1: rgba(111, 189, 178, .08);
    --wave-2: rgba(61, 138, 128, .10);
    --wave-3: rgba(111, 189, 178, .06);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; min-height: 100vh;
  font-family: var(--sans); font-size: 16px; line-height: 1.65;
  background: var(--paper); color: var(--ink);
  overflow-x: hidden;
}
.water-bg { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.topbar, main, .site-foot { position: relative; z-index: 1; }
a { color: var(--water); text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.15; letter-spacing: -.01em; margin: 0 0 .5em; }
h2 { font-size: clamp(1.6rem, 4.5vw, 2.3rem); }
em.ink { font-style: italic; color: var(--coral); }
main { max-width: 980px; margin: 0 auto; padding: 0 16px 60px; }
::selection { background: var(--coral); color: var(--paper); }

/* ---------- Đầu & chân trang ---------- */
.topbar { max-width: 980px; margin: 0 auto; padding: 18px 16px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; }
.brand svg { width: 34px; height: 34px; transition: transform .6s var(--ease); }
.brand:hover svg { transform: rotate(-12deg) scale(1.06); }
.brand b { font-family: var(--serif); font-style: italic; font-size: 1.7rem; font-weight: 600; letter-spacing: -.02em; }
.topbar .tag { font-size: .8rem; color: var(--ink-2); letter-spacing: .04em; }
.site-foot { text-align: center; color: var(--ink-2); font-size: .85rem; padding: 24px 16px 48px; }
.site-foot a { color: var(--ink-2); }

/* ---------- Nút ---------- */
.btn {
  position: relative; overflow: hidden; isolation: isolate;
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  border-radius: 999px; padding: .8em 1.5em;
  font: inherit; font-weight: 600; cursor: pointer; text-decoration: none;
  border: 1.5px solid var(--ink); background: transparent; color: var(--ink);
  transition: color .35s var(--ease), border-color .35s, transform .15s;
}
.btn::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: var(--water); transform: translateY(102%);
  border-radius: 40% 40% 0 0 / 18% 18% 0 0;
  transition: transform .45s var(--ease), border-radius .45s;
}
.btn:hover::before, .btn:focus-visible::before { transform: translateY(0); border-radius: 0; }
.btn:hover, .btn:focus-visible { color: var(--paper); border-color: var(--water); }
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .45; cursor: default; }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-lg { font-size: 1.08rem; padding: .95em 1.9em; }
.btn-block { width: 100%; }
.btn .arrow { transition: transform .3s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }
.ripple { position: absolute; width: 10px; height: 10px; margin: -5px 0 0 -5px; border-radius: 50%; background: rgba(255, 255, 255, .45); animation: ripple .7s ease-out forwards; pointer-events: none; }
@keyframes ripple { to { transform: scale(40); opacity: 0; } }

.muted { color: var(--ink-2); font-size: .92rem; }
.center { text-align: center; }
.kicker { font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-2); margin: 0 0 .6em; }

/* ---------- Hiện dần ---------- */
[data-reveal] { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: .1s; }
[data-reveal][data-delay="2"] { transition-delay: .2s; }
[data-reveal][data-delay="3"] { transition-delay: .3s; }
@media (prefers-reduced-motion: reduce) { [data-reveal] { opacity: 1; transform: none; } }

/* ---------- Trang chủ ---------- */
.hero { display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; align-items: center; padding: 36px 0 56px; }
.hero h1 { font-size: clamp(2.6rem, 8vw, 4.6rem); font-weight: 500; line-height: 1.02; letter-spacing: -.03em; }
.hero h1 i { color: var(--water); }
.hero .sub { font-size: 1.08rem; color: var(--ink-2); max-width: 520px; margin: 0 0 1.8em; }
.hero-meta { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 26px; font-size: .9rem; color: var(--ink-2); }
.hero-meta b { display: block; font-family: var(--serif); font-size: 1.6rem; color: var(--ink); font-weight: 600; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.lens { position: relative; aspect-ratio: 1; width: 100%; max-width: 380px; justify-self: center; }
.lens svg { width: 100%; height: 100%; overflow: visible; }
.lens .l-wave { animation: drift 7s linear infinite; }
.lens .l-wave.b { animation-duration: 11s; animation-direction: reverse; opacity: .55; }
.lens .l-sun { animation: bob 5s ease-in-out infinite; transform-origin: center; transform-box: fill-box; }
.lens .l-refl { animation: bob 5s ease-in-out infinite reverse; transform-origin: center; transform-box: fill-box; }
@keyframes drift { to { transform: translateX(-200px); } }
@keyframes bob { 50% { transform: translateY(6px); } }

.band { padding: 56px 0; border-top: 1px solid var(--line); }
.band-head { display: grid; grid-template-columns: 90px 1fr; gap: 12px; margin-bottom: 28px; }
.band-num { font-family: var(--serif); font-size: 3.4rem; line-height: 1; color: var(--coral); font-style: italic; }
.band-head p { color: var(--ink-2); margin: 0; max-width: 620px; }

.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.pillar {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px;
  transform: perspective(800px) rotateX(var(--rx, 0)) rotateY(var(--ry, 0));
  transition: transform .2s ease-out, box-shadow .3s, border-color .3s;
  background-image: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--water) 10%, transparent), transparent 55%);
}
.pillar:hover { border-color: var(--water); box-shadow: 0 18px 40px rgba(16, 32, 30, .1); }
.pillar .p-num { font-family: var(--serif); font-style: italic; font-size: 1.1rem; color: var(--coral); }
.pillar h3 { font-size: 1.3rem; margin: .5em 0 .4em; }
.pillar p { margin: 0; color: var(--ink-2); font-size: .95rem; }

.compare { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.tier { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transform: perspective(800px) rotateX(var(--rx, 0)) rotateY(var(--ry, 0)); transition: transform .2s ease-out; }
.tier h3 { font-size: 1.4rem; }
.tier .price { font-family: var(--serif); font-size: 2.4rem; margin: 0 0 .4em; }
.tier .price small { font-family: var(--sans); font-size: .9rem; color: var(--ink-2); }
.tier ul { list-style: none; padding: 0; margin: 0; }
.tier li { padding: 8px 0 8px 28px; border-top: 1px solid var(--line); position: relative; }
.tier li::before { content: ''; position: absolute; left: 4px; top: 17px; width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--water); }
.tier-pro { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.tier-pro .price small, .tier-pro li { border-color: rgba(243, 238, 228, .15); color: inherit; }
.tier-pro li::before { background: var(--coral); border-color: var(--coral); }

.faq details { border-top: 1px solid var(--line); padding: 16px 4px; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { font-family: var(--serif); font-size: 1.2rem; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::after { content: '+'; color: var(--coral); transition: transform .3s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { color: var(--ink-2); margin: .6em 0 0; }
.final { text-align: center; padding: 64px 0 24px; }
.final h2 { font-size: clamp(2rem, 6vw, 3.2rem); font-weight: 500; }

/* ---------- Khối giải thích trang chủ ---------- */
.pole-grid, .type-grid, .arch-grid, .sci-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 26px; }
.pole-grid { grid-template-columns: 1fr 1fr; }
.pole-card, .type-card, .arch-card, .sci-grid article {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px;
  transform: perspective(800px) rotateX(var(--rx, 0)) rotateY(var(--ry, 0));
  transition: transform .2s ease-out, border-color .3s, box-shadow .3s;
}
.pole-card:hover, .type-card:hover, .arch-card:hover { border-color: var(--c, var(--water)); box-shadow: 0 18px 40px rgba(16, 32, 30, .1); }
.pole-card h3, .type-card h3, .arch-card h3, .sci-grid h3 { font-size: 1.3rem; margin: 0 0 .3em; }
.pc-en { font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; color: var(--c); font-weight: 700; margin: 0 0 4px; }
.pc-q { color: var(--ink-2); margin: 0 0 14px; font-size: .95rem; }
.pc-scale { height: 6px; border-radius: 99px; background: linear-gradient(90deg, color-mix(in srgb, var(--c) 25%, transparent), var(--c)); position: relative; }
.pc-scale span { position: absolute; top: 50%; left: 50%; width: 16px; height: 16px; margin: -8px 0 0 -8px; border-radius: 50%; background: var(--surface); border: 3px solid var(--c); transition: left .6s var(--ease); }
.pole-card:hover .pc-scale span { left: 88%; }
.pc-poles { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 12px; }
.pc-poles div:last-child { text-align: right; }
.pc-poles p { text-align: left; }
.pc-poles div:last-child p { text-align: right; }
.pc-poles b { font-family: var(--serif); font-size: 1.05rem; }
.pc-poles p { margin: 4px 0 0; font-size: .88rem; color: var(--ink-2); }
.pole-note { background: transparent; border-style: dashed; display: flex; flex-direction: column; justify-content: center; }
.pole-note p { color: var(--ink-2); margin: 0; }
.type-card { position: relative; overflow: hidden; }
.tc-letter { position: absolute; right: 14px; top: -10px; font-family: var(--serif); font-size: 5.5rem; font-style: italic; color: var(--water); opacity: .12; transition: opacity .3s, transform .5s var(--ease); }
.type-card:hover .tc-letter { opacity: .3; transform: translateY(8px) rotate(-6deg); }
.type-card h3 small { font-family: var(--sans); font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); font-weight: 600; margin-left: 4px; }
.type-card p { margin: 0 0 10px; color: var(--ink-2); font-size: .95rem; }
.tc-jobs { font-size: .88rem !important; margin: 0 !important; border-top: 1px solid var(--line); padding-top: 10px; }
.tc-jobs b { color: var(--ink); }
.arch-card { display: grid; grid-template-columns: 76px 1fr; gap: 14px; align-items: center; }
.arch-card .glyph { width: 76px; color: var(--ink); }
.arch-card:hover .g-shape { animation: grow .9s var(--ease) both; }
.arch-card h3 { font-size: 1.15rem; margin: 0; }
.ac-pole { font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--coral); font-weight: 700; margin: 2px 0 6px; }
.arch-card p:last-child { margin: 0; color: var(--ink-2); font-size: .9rem; }
.arch-grid + .muted, .type-grid + .muted { margin-top: 22px; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.steps li { border-top: 2px solid var(--ink); padding-top: 14px; }
.st-num { font-family: var(--serif); font-style: italic; font-size: 2.6rem; color: var(--coral); line-height: 1; }
.steps h3 { font-size: 1.25rem; margin: .3em 0; }
.steps p { color: var(--ink-2); margin: 0; }
.sample { position: relative; margin-top: 34px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 26px 0; overflow: hidden; }
.sample .rp-trait { border-top: 0; margin-top: 8px; padding-top: 0; }
.sample h4 { margin: 1em 0 .2em; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); }
.sample p { margin: .3em 0; }
.sample-fade { position: relative; margin: -90px -26px 0; padding: 110px 26px 22px; background: linear-gradient(transparent, var(--surface) 55%); text-align: center; }
.sample-fade p { margin: 0; color: var(--ink-2); font-size: .92rem; }
.sci-grid p { color: var(--ink-2); font-size: .95rem; }
.sci-grid p b { color: var(--ink); }
.sci-limits { border-color: var(--coral) !important; }
.sci-limits ul { padding-left: 1.1em; margin: 0; color: var(--ink-2); font-size: .93rem; }
.sci-limits li { margin: 6px 0; }
.why-text { font-size: 1.08rem; margin: 0 0 16px; }
.chips { display: flex; gap: 10px; flex-wrap: wrap; }
.chips span { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 8px 14px; font-weight: 600; transition: border-color .3s, transform .2s; }
.chips span:hover { border-color: var(--water); transform: translateY(-2px); }
.chips small { display: block; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); font-weight: 600; }
.trait-row { border-top: 1px solid var(--line); padding: 18px 0 6px; }
.trait-row:first-of-type { border-top: 0; }
.tr-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.tr-head h3 { margin: 0; font-size: 1.3rem; }
.tr-head span { color: var(--c); font-weight: 700; font-size: .9rem; }
.tr-bar { height: 8px; border-radius: 99px; background: var(--line); margin: 10px 0 4px; overflow: hidden; }
.tr-bar span { display: block; height: 100%; border-radius: 99px; background: var(--c); transform-origin: left; transition: transform 1s var(--ease); }
.trait-row:hover .tr-bar span { filter: brightness(1.1); }
.tr-poles { display: flex; justify-content: space-between; font-size: .8rem; color: var(--ink-2); }
.trait-row p { margin: 10px 0 0; }
.tr-lock { font-size: .85rem; color: var(--ink-2); padding-left: 20px; position: relative; }
.tr-lock::before { content: ''; position: absolute; left: 2px; top: 5px; width: 9px; height: 9px; border: 2px solid var(--coral); border-radius: 2px; }
.ri-top p { margin: 10px 0 0; font-size: .92rem; color: var(--ink-2); }
.ri-top b { color: var(--ink); }
.guide { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 22px; margin: 18px 0; }
.guide summary { font-family: var(--serif); font-size: 1.15rem; cursor: pointer; list-style: none; display: flex; justify-content: space-between; }
.guide summary::after { content: '+'; color: var(--coral); transition: transform .3s; }
.guide[open] summary::after { transform: rotate(45deg); }
.guide-body p { color: var(--ink-2); margin: .7em 0 0; }
.guide-body b { color: var(--ink); }

/* ---------- Hình người ---------- */
.figure { position: relative; }
.fig-svg { width: 100%; height: auto; display: block; overflow: visible; }
.fig-body circle, .fig-body path, .fig-body rect { fill: var(--surface); }
.fig-outline circle, .fig-outline path { fill: none; stroke: var(--ink); stroke-width: 2.2; }
.fig-water path { fill: color-mix(in srgb, var(--water) 38%, transparent); }
.fig-water { animation: figwave 6s linear infinite; }
@keyframes figwave { to { transform: translateX(-180px); } }
.fig-line { fill: none; stroke: var(--ink-2); stroke-width: 1.2; stroke-dasharray: 4 4; transition: stroke .3s; }
.fig-halo { fill: var(--c); opacity: .14; transform-box: fill-box; transform-origin: center; animation: pulse 2.6s ease-in-out infinite; }
.fig-dot { fill: var(--c); stroke: var(--paper); stroke-width: 3; transition: r .3s; }
.fig-num { font: 700 10px var(--sans); fill: var(--paper); pointer-events: none; }
.fig-pt { cursor: pointer; outline: none; }
.fig-pt .fig-label { transition: opacity .3s; }
.fl-part { font: 600 11px var(--sans); letter-spacing: .12em; text-transform: uppercase; fill: var(--c); }
.fl-name { font: 600 19px var(--serif); fill: var(--ink); }
.fl-val { font: 500 12px var(--sans); fill: var(--ink-2); }
.fl-track { fill: var(--line); }
.fl-fill { fill: var(--c); }
.figure[data-active] .fig-pt:not(.on) .fig-label { opacity: .35; }
.figure[data-active] .fig-pt:not(.on) .fig-line { opacity: .35; }
.fig-pt.on .fig-line { stroke: var(--c); stroke-dasharray: none; stroke-width: 2; }
.fig-pt.on .fig-dot, .fig-pt:hover .fig-dot { r: 11; }
.fig-pt.on .fig-halo { opacity: .3; }
@keyframes pulse { 50% { transform: scale(1.5); opacity: .05; } }
.fig-legend { display: none; }
.fig-detail { min-height: 5.5em; margin-top: 8px; padding: 16px 20px; border-left: 3px solid var(--c, var(--line)); background: var(--surface); border-radius: 0 14px 14px 0; transition: border-color .3s; }
.fig-detail p { margin: 0; }
.fd-name { font-family: var(--serif); font-size: 1.2rem; margin-bottom: 4px !important; }
.fd-name span { font-family: var(--sans); font-size: .85rem; color: var(--ink-2); }
.figure:not(.in) .fig-pt { opacity: 0; }
.figure .fig-pt { transition: opacity .6s var(--ease); }
.figure.in .fig-pt:nth-of-type(2) { transition-delay: .1s; }
.figure.in .fig-pt:nth-of-type(3) { transition-delay: .2s; }
.figure.in .fig-pt:nth-of-type(4) { transition-delay: .3s; }
.figure.in .fig-pt:nth-of-type(5) { transition-delay: .4s; }

/* ---------- Biểu đồ radar / lục giác ---------- */
.radar { width: 100%; max-width: 520px; height: auto; display: block; margin: 0 auto; overflow: visible; }
.radar-grid polygon { fill: none; stroke: var(--line); stroke-width: 1; }
.radar-grid polygon:last-of-type { stroke: color-mix(in srgb, var(--ink) 30%, transparent); }
.radar-grid line { stroke: var(--line); }
.radar-shape { fill: color-mix(in srgb, var(--rc, var(--water)) 22%, transparent); stroke: var(--rc, var(--water)); stroke-width: 2.5; stroke-linejoin: round; transform-box: view-box; transform-origin: 180px 180px; transform: scale(.05); transition: transform 1.1s var(--ease); }
.radar.in .radar-shape { transform: scale(1); }
.radar-labels text { font-family: var(--sans); }
.rl-name { font-size: 17px; font-weight: 600; fill: var(--ink); }
.rl-val { font-size: 16px; font-weight: 700; fill: var(--rc, var(--water)); }
.radar-pt { cursor: pointer; outline: none; }
.radar-pt .hit { fill: transparent; }
.radar-pt .dot { fill: var(--paper); stroke: var(--rc, var(--water)); stroke-width: 2.5; transition: r .25s; opacity: 0; }
.radar.in .radar-pt .dot { opacity: 1; transition: opacity .4s 1s, r .25s; }
.radar-pt:hover .dot, .radar-pt.on .dot, .radar-pt:focus .dot { r: 9; fill: var(--rc, var(--water)); }
.radar-coral { --rc: var(--coral); }
.radar-cap { text-align: center; color: var(--ink-2); font-size: .92rem; min-height: 3em; margin: 4px auto 0; max-width: 520px; }
.radar-cap b { color: var(--ink); }

/* ---------- Cặp đôi ---------- */
.radar-shape-2 { fill: color-mix(in srgb, var(--water) 20%, transparent); stroke: var(--water); stroke-dasharray: 6 4; }
.rl-val-2 { fill: var(--water); }
.pair-legend { display: flex; gap: 18px; justify-content: center; font-weight: 600; margin: 4px 0 0; }
.pair-legend span::before { content: ''; display: inline-block; width: 14px; height: 14px; border-radius: 50%; margin-right: 6px; vertical-align: -2px; }
.lg-a::before { background: var(--coral); }
.lg-b::before { background: var(--water); }
.duo { margin: 6px 0 10px; }
.duo-head { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.duo-head b { font-family: var(--serif); font-size: 1.15rem; font-weight: 600; }
.duo-head span { color: var(--ink-2); font-size: .88rem; }
.duo-track { position: relative; height: 10px; background: var(--line); border-radius: 99px; margin: 10px 0 4px; }
.duo-gap { position: absolute; top: 0; bottom: 0; background: color-mix(in srgb, var(--c) 35%, transparent); border-radius: 99px; }
.duo-a, .duo-b { position: absolute; top: 50%; width: 18px; height: 18px; margin: -9px 0 0 -9px; border-radius: 50%; border: 3px solid var(--surface); transition: transform .3s var(--ease); }
.duo-a { background: var(--coral); }
.duo-b { background: var(--water); }
.duo:hover .duo-a, .duo:hover .duo-b { transform: scale(1.3); }
.duo-poles { display: flex; justify-content: space-between; font-size: .8rem; color: var(--ink-2); }
.pair-hero { display: grid; grid-template-columns: 220px 1fr; gap: 28px; align-items: center; }
.pair-score, .score-ring { position: relative; display: grid; place-items: center; aspect-ratio: 1; }
.pair-score { width: 160px; border-radius: 50%; border: 3px solid var(--coral); margin: 0 auto; }
.pair-score b { font-family: var(--serif); font-size: 3.6rem; font-weight: 500; line-height: 1; }
.pair-score span { position: absolute; bottom: 30px; font-size: .85rem; opacity: .7; }
.score-ring svg { width: 100%; height: auto; transform: rotate(-90deg); }
.score-ring .sr-track { fill: none; stroke: color-mix(in srgb, var(--paper) 18%, transparent); stroke-width: 10; }
.score-ring .sr-fill { fill: none; stroke: var(--coral); stroke-width: 10; stroke-linecap: round; transition: stroke-dashoffset 1.6s var(--ease); }
.score-ring .sr-num { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.score-ring .sr-num b { font-family: var(--serif); font-size: 3.4rem; font-weight: 500; line-height: 1; }
.score-ring .sr-num span { font-size: .8rem; opacity: .7; }
.rp-pair { grid-template-columns: 180px 1fr; }
.pair-sep { display: flex; align-items: center; gap: 14px; margin: 44px 0 8px; font-family: var(--serif); font-style: italic; font-size: 1.4rem; color: var(--coral); }
.pair-sep::before, .pair-sep::after { content: ''; flex: 1; height: 1px; background: var(--line); }
.invite-box { border: 1.5px dashed var(--water); border-radius: var(--radius); padding: 24px; margin: 18px 0; background: color-mix(in srgb, var(--water) 6%, var(--surface)); }
.rel-pick { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0; }
.rel-pick label { cursor: pointer; }
.rel-pick input { position: absolute; opacity: 0; }
.rel-pick span { display: inline-block; padding: .5em 1.1em; border-radius: 999px; border: 1.5px solid var(--line); transition: all .25s; }
.rel-pick input:checked + span { background: var(--water); border-color: var(--water); color: var(--paper); }
.rel-pick input:focus-visible + span { outline: 2px solid var(--coral); }
.invite-link { display: flex; gap: 8px; margin-top: 12px; }
.invite-link input { flex: 1; min-width: 0; padding: 11px 14px; border-radius: 12px; border: 1.5px solid var(--line); background: var(--paper); color: var(--ink); font: inherit; font-size: .85rem; }
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 18px 0 8px; }
.plan { border: 1.5px solid color-mix(in srgb, var(--paper) 25%, transparent); border-radius: 18px; padding: 18px; }
.plan h3 { font-size: 1.15rem; margin: 0 0 .2em; }
.plan .price { font-family: var(--serif); font-size: 1.8rem; margin: 0 0 .4em; }
.plan p { margin: 0 0 12px; font-size: .9rem; opacity: .8; }
.plan-pair { border-color: var(--coral); }

/* ---------- Dấu vân tính cách ---------- */
.glyph { display: block; }
.g-ring { fill: none; stroke: currentColor; stroke-width: 1.2; opacity: .4; }
.g-inner { opacity: .2; }
.g-shape { fill: var(--coral); opacity: .9; stroke: var(--coral); stroke-width: 2; stroke-linejoin: round; transform-box: view-box; transform-origin: 50px 50px; animation: grow 1.2s var(--ease) both .2s; }
@keyframes grow { from { transform: scale(0) rotate(-40deg); } }

/* ---------- Thẻ chung ---------- */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; margin: 18px 0; }
.narrow { max-width: 600px; margin: 28px auto; }
.tips { padding-left: 1.2em; color: var(--ink-2); }
.field { display: block; font-weight: 600; margin: 22px 0; }
.field input { display: block; width: 100%; margin-top: 8px; padding: 13px 16px; border-radius: 14px; border: 1.5px solid var(--line); background: var(--paper); color: var(--ink); font: inherit; transition: border-color .3s; }
.field input:focus { outline: none; border-color: var(--water); }

/* ---------- Làm bài ---------- */
.quiz { position: relative; overflow: hidden; }
.tide { position: relative; height: 14px; border-radius: 99px; background: var(--foam); overflow: hidden; }
.tide-fill { position: absolute; inset: 0 auto 0 0; background: var(--water); transition: width .5s var(--ease); overflow: hidden; }
.tide-fill::after { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(115deg, transparent 0 10px, rgba(255, 255, 255, .18) 10px 20px); animation: flow 1.2s linear infinite; }
@keyframes flow { to { background-position: 44px 0; } }
.quiz-meta { display: flex; justify-content: space-between; color: var(--ink-2); font-size: .85rem; margin: 12px 0 24px; }
.part-note { border-left: 3px solid var(--coral); padding: 4px 14px; color: var(--ink-2); }
.quiz-prompt { color: var(--ink-2); margin: 0; }
.quiz-q { font-size: clamp(1.4rem, 4.5vw, 1.85rem); font-weight: 500; margin: .3em 0 1em; min-height: 3.2em; animation: qin .45s var(--ease); }
@keyframes qin { from { opacity: 0; transform: translateX(24px); } }
.scale { display: grid; gap: 10px; }
.opt {
  position: relative; overflow: hidden; isolation: isolate;
  display: flex; align-items: center; gap: 14px; text-align: left;
  background: var(--paper); color: var(--ink); border: 1.5px solid var(--line); border-radius: 16px;
  padding: 15px 18px; font: inherit; font-weight: 500; cursor: pointer;
  transition: border-color .3s, color .3s, transform .15s;
}
.opt::before { content: ''; position: absolute; inset: 0; z-index: -1; background: var(--foam); transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease); }
.opt:hover::before { transform: scaleX(1); }
.opt:hover { border-color: var(--water); }
.opt:active { transform: scale(.985); }
.opt.on { border-color: var(--water); background: var(--water); color: var(--paper); }
.opt .drop { width: 20px; height: 20px; flex: none; }
.opt .drop path { fill: none; stroke: currentColor; stroke-width: 1.6; }
.opt .drop .lvl { fill: currentColor; stroke: none; }
.quiz-nav { margin-top: 20px; }

.spinner { width: 54px; height: 54px; margin: 12px auto 18px; border-radius: 50%; border: 2px solid var(--ink); position: relative; overflow: hidden; }
.spinner::after { content: ''; position: absolute; left: -50%; width: 200%; height: 200%; top: 55%; background: var(--water); border-radius: 42%; animation: spin 2.4s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Kết quả ---------- */
.result-hero { display: grid; grid-template-columns: 200px 1fr; gap: 28px; align-items: center; padding: 30px; background: var(--ink); color: var(--paper); border: 0; }
.result-hero .kicker { color: color-mix(in srgb, var(--paper) 65%, transparent); }
.result-hero .glyph { width: 100%; color: var(--paper); }
.result-hero h1 { font-size: clamp(2rem, 6vw, 3rem); font-weight: 500; margin-bottom: .2em; }
.result-hero .adj { font-style: italic; color: var(--coral); }
.result-hero .tagline { font-size: 1.1rem; opacity: .85; margin: 0 0 1.2em; }
.result-hero .btn { color: var(--paper); border-color: color-mix(in srgb, var(--paper) 45%, transparent); }
.code-big { font-family: var(--serif); font-size: 3rem; letter-spacing: .1em; color: var(--coral); line-height: 1; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }
.career-teaser { border-top: 1px solid var(--line); padding-top: 16px; margin-top: 16px; }
.career-one { font-family: var(--serif); font-size: 1.5rem; margin: .1em 0 .5em; }
.blurred { filter: blur(6px); user-select: none; color: var(--ink-2); }
.blurred p { margin: .2em 0; }
.paywall { background: var(--ink); color: var(--paper); border: 0; position: relative; overflow: hidden; }
.paywall h2 { font-weight: 500; }
.paywall .muted { color: color-mix(in srgb, var(--paper) 65%, transparent); }
.paywall .btn-primary { background: var(--coral); border-color: var(--coral); color: #fff; }
.checks { list-style: none; padding: 0; margin: 18px 0 24px; columns: 2; column-gap: 24px; }
.checks li { padding: 6px 0 6px 26px; position: relative; break-inside: avoid; }
.checks li::before { content: ''; position: absolute; left: 0; top: 12px; width: 12px; height: 12px; border: 2px solid var(--coral); border-radius: 3px; }
.notice { border-left: 3px solid var(--gold); background: var(--surface); border-radius: 0 14px 14px 0; padding: 14px 18px; margin: 18px 0; }
.notice.success { border-color: var(--water); }

/* ---------- Báo cáo đầy đủ ---------- */
.report-actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 18px 0; }
.report section, .rp-cover { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; margin: 18px 0; }
.rp-cover { background: var(--ink); color: var(--paper); border: 0; display: grid; grid-template-columns: 180px 1fr; gap: 28px; align-items: center; }
.rp-cover .glyph { width: 100%; color: var(--paper); }
.rp-kicker { font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; opacity: .65; margin: 0; }
.rp-cover h1 { font-size: clamp(1.9rem, 5.5vw, 2.8rem); font-weight: 500; margin: .2em 0; }
.rp-adj { font-style: italic; color: var(--coral); }
.rp-tagline { font-size: 1.1rem; opacity: .85; margin: 0 0 .4em; }
.rp-code { opacity: .75; margin: 0; }
.report h2 { font-weight: 500; display: flex; gap: 14px; align-items: baseline; }
.report h2 .n { font-style: italic; color: var(--coral); font-size: 1.1em; }
.report h3 { font-size: 1.3rem; margin-top: 1.2em; }
.report p { margin: .45em 0; }
.rp-trait { border-top: 1px solid var(--line); padding-top: 18px; margin-top: 18px; border-left: 3px solid var(--c); padding-left: 18px; }
.rp-trait h3 { margin-top: 0; }
.rp-pos { font-family: var(--sans); font-size: .8rem; color: var(--ink-2); font-weight: 500; }
.rp-lead { font-weight: 500; }
.rp-facet { display: grid; grid-template-columns: 26px 1fr; gap: 10px; margin-top: 12px; }
.rp-facet svg { width: 22px; height: 22px; margin-top: 2px; stroke: var(--c); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.rp-facet h4 { margin: 0; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); }
.rp-facet p { margin: .15em 0 0; }
.rp-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.report .rp-summary { border: 2px solid var(--ink); }
.rp-kicker-ink { font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--coral); margin: 0 0 6px !important; }
.rp-summary ul { padding-left: 1.1em; margin: 12px 0 0; }
.rp-summary li { margin: 8px 0; }
.rp-mini { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 14px; background: var(--paper); border-radius: 14px; padding: 4px 16px 10px; }
.rp-mini h4 { margin: 10px 0 0; font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); }
.rp-mini ul { padding-left: 1.1em; margin: 6px 0 0; font-size: .93rem; }
.rp-try { border-left: 3px solid var(--c); padding: 4px 12px; margin-top: 12px !important; }
.report .rp-card[style] { border-left: 3px solid var(--c); }
.rp-card { background: var(--paper); border-radius: 16px; padding: 18px; margin: 10px 0; }
.rp-card h3 { margin-top: 0; }
.rp-good { border-top: 3px solid var(--water); }
.rp-watch { border-top: 3px solid var(--coral); }
.rp-careers { padding-left: 1.4em; }
.rp-careers li { margin: 12px 0; }
.rp-careers li::marker { font-family: var(--serif); color: var(--coral); }
.rp-fit { font-size: .8rem; color: var(--water); font-weight: 700; }
.rp-careers small { color: var(--ink-2); }
.rp-plan { list-style: none; padding: 0; counter-reset: wk; }
.rp-plan li { border-top: 1px solid var(--line); padding: 12px 0; }
.rp-note, .rp-foot { color: var(--ink-2); font-size: .85rem; }
.rp-warn { color: var(--coral); }
.report .rp-foot { padding: 0 8px; }

@media (min-width: 761px) and (max-width: 980px) {
  .pole-grid, .type-grid, .arch-grid, .compare { grid-template-columns: 1fr 1fr; }
}

/* ---------- Điện thoại ---------- */
@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding-top: 12px; }
  .lens { max-width: 240px; order: -1; }
  .rp-mini { grid-template-columns: 1fr; }
  .pillars, .compare, .two, .rp-cols, .pole-grid, .type-grid, .arch-grid, .sci-grid, .steps { grid-template-columns: 1fr; }
  .band-head { grid-template-columns: 1fr; }
  .band-num { font-size: 2.4rem; }
  .result-hero, .rp-cover { grid-template-columns: 1fr; text-align: center; }
  .result-hero .glyph, .rp-cover .glyph { max-width: 150px; margin: 0 auto; }
  .checks { columns: 1; }
  .pair-hero, .rp-pair, .plans { grid-template-columns: 1fr; text-align: center; }
  .pair-hero .score-ring { max-width: 180px; margin: 0 auto; }
  .pair-hero .cta-row { justify-content: center; }
  .fig-svg .fig-label, .fig-svg .fig-line { display: none; }
  .figure { overflow: hidden; }
  /* Thân người chỉ chiếm phần giữa khung 720px — phóng to và cắt hai bên nhãn. */
  .fig-svg { width: 190%; max-width: none; margin: 0 0 -2% -45%; }
  .fig-dot { r: 11; }
  .fig-num { font-size: 13px; }
  .fig-legend { display: grid; gap: 6px; padding: 0; margin: 8px 0 0; list-style: none; counter-reset: fl; }
  .fig-legend li { counter-increment: fl; display: grid; grid-template-columns: 26px 1fr; column-gap: 10px; padding: 8px 10px; border-radius: 12px; cursor: pointer; transition: background .3s; }
  .fig-legend li::before { content: counter(fl); grid-row: span 2; width: 24px; height: 24px; border-radius: 50%; background: var(--c); color: var(--paper); font: 700 12px/24px var(--sans); text-align: center; }
  .fig-legend li span { font-size: .85rem; color: var(--ink-2); }
  .fig-legend li.on { background: var(--surface); }
  .card, .report section, .rp-cover { padding: 20px; }
}
@media (min-width: 761px) { .fig-num { display: none; } }

@media print {
  :root { --paper: #fff; --surface: #fff; --ink: #111; --ink-2: #555; --line: #ddd; }
  .topbar, .site-foot, .no-print, .water-bg { display: none !important; }
  main { max-width: none; padding: 0; }
  .report section, .rp-cover { break-inside: avoid-page; }
  .rp-cover, .rp-trait, .radar, .figure { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .radar-shape { transform: none; }
  .figure .fig-pt { opacity: 1; }
  .fig-detail { display: none; }
}