@layer reset, base, components, pages, utilities;

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body, h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }
  ul, ol { margin: 0; padding: 0; list-style: none; }
  img, picture { display: block; max-width: 100%; }
  button, input, select, textarea { font: inherit; }
  button, a { -webkit-tap-highlight-color: transparent; }
  address { font-style: normal; }
}

@layer base {
  :root {
    --ink: #171614;
    --ink-soft: #25231f;
    --paper: #fbfaf7;
    --paper-2: #f3f0e9;
    --paper-3: #e9e4da;
    --gold: #aa8140;
    --gold-light: #cfb278;
    --smoke: #6e6a64;
    --line: rgba(23, 22, 20, .14);
    --line-dark: rgba(255, 255, 255, .16);
    --white: #fff;
    --success: #23c766;
    --serif: "Iowan Old Style", "Baskerville", "Times New Roman", serif;
    --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --shell: min(1240px, calc(100vw - 48px));
    --header-h: 84px;
    --radius-sm: 14px;
    --radius: 24px;
    --radius-lg: 38px;
    --shadow: 0 26px 80px rgba(24, 20, 15, .12);
    --ease: cubic-bezier(.22, 1, .36, 1);
  }

  html { background: var(--ink); color: var(--ink); font-family: var(--sans); font-size: 16px; }
  body { min-width: 320px; background: var(--paper); line-height: 1.55; text-rendering: optimizeLegibility; overflow-x: hidden; }
  a { color: inherit; text-decoration: none; }
  button { color: inherit; }
  ::selection { background: var(--gold-light); color: var(--ink); }
  :focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; }

  h1, h2, h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -.038em; line-height: .98; text-wrap: balance; }
  h1 { font-size: clamp(3.25rem, 7.6vw, 7.6rem); }
  h2 { font-size: clamp(2.6rem, 5.5vw, 5.6rem); }
  h3 { font-size: clamp(1.5rem, 2.4vw, 2.45rem); line-height: 1.05; }
  p { text-wrap: pretty; }
  small { font-size: .78rem; }
}

@layer components {
  .shell { width: var(--shell); margin-inline: auto; }
  .narrow { width: min(760px, calc(100vw - 48px)); margin-inline: auto; }
  .section { padding-block: clamp(92px, 12vw, 176px); position: relative; }
  .section-compact { padding-block: clamp(68px, 8vw, 108px); }
  .section-dark { background: var(--ink); color: var(--paper); }
  .section-paper { background: var(--paper); }
  .section-muted { background: var(--paper-2); }

  .eyebrow { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 22px; color: var(--gold); font-size: .7rem; font-weight: 760; letter-spacing: .16em; text-transform: uppercase; }
  .eyebrow::before { width: 26px; height: 1px; background: currentColor; content: ""; }
  .eyebrow-light { color: var(--gold-light); }
  .lead { max-width: 650px; color: var(--smoke); font-size: clamp(1.08rem, 1.6vw, 1.3rem); line-height: 1.62; }
  .lead-light { color: rgba(255, 255, 255, .66); }
  .fineprint { color: var(--smoke); font-size: .78rem; line-height: 1.55; }
  .kicker { font-size: .78rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }

  .btn { min-height: 52px; padding: 0 24px; border: 1px solid var(--ink); border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; background: var(--ink); color: var(--white); font-size: .82rem; font-weight: 700; letter-spacing: .025em; transition: transform .25s var(--ease), background .25s, color .25s, border-color .25s; }
  .btn:hover { transform: translateY(-2px); background: #000; }
  .btn:active { transform: translateY(0) scale(.985); }
  .btn-light { border-color: var(--white); background: var(--white); color: var(--ink); }
  .btn-light:hover { background: var(--gold-light); border-color: var(--gold-light); }
  .btn-ghost { background: transparent; color: var(--ink); }
  .btn-ghost:hover { background: var(--ink); color: var(--white); }
  .btn-ghost-light { border-color: rgba(255,255,255,.45); background: transparent; color: var(--white); }
  .btn-ghost-light:hover { border-color: var(--white); background: var(--white); color: var(--ink); }
  .button-row { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }
  .text-link { padding-bottom: 5px; border-bottom: 1px solid currentColor; display: inline-flex; gap: 16px; align-items: center; font-size: .84rem; font-weight: 700; }
  .text-link span { transition: transform .25s var(--ease); }
  .text-link:hover span { transform: translate(3px, -3px); }
  .text-link-light { color: var(--paper); }

  .skip-link { position: fixed; z-index: 1000; top: 10px; left: 10px; padding: 10px 14px; background: var(--paper); color: var(--ink); transform: translateY(-150%); }
  .skip-link:focus { transform: translateY(0); }
  .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

  .site-header { position: absolute; z-index: 100; top: 0; left: 0; right: 0; height: var(--header-h); color: var(--ink); transition: background .35s, color .35s, box-shadow .35s, transform .35s var(--ease); }
  .site-header[data-tone="dark"] { color: var(--white); }
  .site-header.is-sticky { position: fixed; background: color-mix(in srgb, var(--paper) 92%, transparent); color: var(--ink); box-shadow: 0 1px 0 var(--line); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
  .site-header.is-hidden { transform: translateY(-105%); }
  .site-header.is-sticky .brand img { filter: none; }
  .header-inner { height: 100%; display: grid; grid-template-columns: 182px 1fr auto; align-items: center; gap: 30px; }
  .brand { width: max-content; height: 56px; display: flex; align-items: center; gap: 10px; }
  .brand img { width: 34px; height: auto; object-fit: contain; }
  .brand-name { font-family: var(--serif); font-size: 1.08rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
  .site-header[data-tone="dark"] .brand img { filter: brightness(0) invert(1); }
  .primary-nav { justify-self: center; display: flex; align-items: center; gap: clamp(20px, 2.5vw, 38px); }
  .primary-nav a { position: relative; padding-block: 10px; font-size: .78rem; font-weight: 630; letter-spacing: .025em; }
  .primary-nav a::after { position: absolute; left: 0; right: 100%; bottom: 5px; height: 1px; background: currentColor; content: ""; transition: right .28s var(--ease); }
  .primary-nav a:hover::after, .primary-nav a[aria-current="page"]::after { right: 0; }
  .header-cta { min-height: 40px; padding: 0 16px; border: 1px solid currentColor; border-radius: 999px; display: inline-flex; align-items: center; gap: 8px; font-size: .75rem; font-weight: 700; }
  .status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 4px rgba(35,199,102,.12); }
  .nav-toggle { display: none; width: 44px; height: 44px; padding: 0; border: 0; background: transparent; place-content: center; gap: 6px; }
  .nav-toggle span:not(.sr-only) { width: 22px; height: 1px; background: currentColor; transition: transform .25s; }

  .page-hero { min-height: min(920px, 100svh); padding: calc(var(--header-h) + 80px) 0 54px; position: relative; display: flex; align-items: flex-end; overflow: hidden; background: var(--ink); color: var(--white); }
  .page-hero::after { position: absolute; inset: 0; z-index: 1; background: linear-gradient(90deg, rgba(11,10,9,.85) 0%, rgba(11,10,9,.54) 43%, rgba(11,10,9,.12) 73%), linear-gradient(0deg, rgba(11,10,9,.72), transparent 45%); content: ""; }
  .page-hero-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; animation: hero-settle 1.6s var(--ease) both; }
  .page-hero-content { position: relative; z-index: 2; width: 100%; display: grid; grid-template-columns: minmax(0, 850px) 1fr; gap: 50px; align-items: end; }
  .page-hero h1 { max-width: 920px; }
  .page-hero h1 em { color: var(--gold-light); font-weight: inherit; }
  .page-hero .hero-copy { max-width: 610px; margin-top: 28px; color: rgba(255,255,255,.75); font-size: clamp(1.08rem, 1.6vw, 1.3rem); }
  .hero-aside { justify-self: end; max-width: 260px; padding: 24px 0 8px; border-top: 1px solid var(--line-dark); color: rgba(255,255,255,.7); font-size: .77rem; }
  .hero-aside strong { display: block; margin-bottom: 7px; color: var(--white); font-size: .9rem; }
  .hero-scroll { position: absolute; z-index: 3; right: max(24px, calc((100vw - 1240px)/2)); bottom: 44px; display: flex; gap: 10px; align-items: center; color: rgba(255,255,255,.65); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; writing-mode: vertical-rl; }
  .hero-scroll::after { width: 1px; height: 52px; background: rgba(255,255,255,.4); content: ""; animation: scroll-line 1.8s infinite var(--ease); transform-origin: top; }

  .trust-bar { padding-block: 20px; background: var(--paper); border-bottom: 1px solid var(--line); }
  .trust-bar-list { display: grid; grid-template-columns: repeat(4, 1fr); }
  .trust-bar li { min-height: 54px; padding: 0 24px; border-right: 1px solid var(--line); display: flex; align-items: center; gap: 12px; color: var(--smoke); font-size: .73rem; line-height: 1.35; }
  .trust-bar li:first-child { padding-left: 0; }
  .trust-bar li:last-child { border: 0; }
  .trust-number { font-family: var(--serif); color: var(--ink); font-size: 1.5rem; }

  .section-heading { margin-bottom: clamp(48px, 7vw, 92px); display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: end; }
  .section-heading > :last-child { justify-self: end; }
  .section-heading h2 { max-width: 780px; }
  .section-heading .lead { max-width: 500px; }

  .route-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .route-card { min-height: 560px; padding: 32px; border-radius: var(--radius); position: relative; overflow: hidden; display: flex; flex-direction: column; justify-content: space-between; isolation: isolate; color: var(--white); box-shadow: 0 0 0 1px rgba(255,255,255,.08) inset; transform: translateZ(0); }
  .route-card::before { position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(0,0,0,.05), rgba(0,0,0,.82)); content: ""; }
  .route-card img { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease), filter .8s var(--ease); }
  .route-card:hover img { transform: scale(1.045); filter: saturate(1.08); }
  .route-card-top { display: flex; justify-content: space-between; align-items: center; }
  .route-index { color: rgba(255,255,255,.68); font-size: .72rem; letter-spacing: .12em; }
  .route-arrow { width: 42px; height: 42px; border: 1px solid rgba(255,255,255,.48); border-radius: 50%; display: grid; place-items: center; transition: background .25s, color .25s, transform .25s; }
  .route-card:hover .route-arrow { background: var(--white); color: var(--ink); transform: rotate(45deg); }
  .route-card h3 { margin-bottom: 13px; font-size: clamp(2rem, 3.3vw, 3.25rem); }
  .route-card p { max-width: 330px; color: rgba(255,255,255,.72); font-size: .92rem; }
  .route-card.route-plain { background: var(--ink-soft); }

  .choice-panel { padding: clamp(32px, 5vw, 62px); border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper); box-shadow: var(--shadow); }
  .choice-head { max-width: 700px; margin-bottom: 38px; }
  .choice-head h2 { margin-bottom: 20px; font-size: clamp(2.3rem, 4vw, 4rem); }
  .choice-tabs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
  .choice-tab { min-height: 82px; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: transparent; cursor: pointer; text-align: left; transition: background .25s, border-color .25s, transform .25s var(--ease); }
  .choice-tab span { display: block; margin-bottom: 5px; color: var(--gold); font-size: .65rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
  .choice-tab strong { font-size: .85rem; }
  .choice-tab:hover { transform: translateY(-2px); border-color: var(--gold); }
  .choice-tab[aria-selected="true"] { background: var(--ink); color: var(--white); border-color: var(--ink); }
  .choice-result { min-height: 160px; margin-top: 28px; padding-top: 28px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr auto; gap: 34px; align-items: center; }
  .choice-result h3 { margin-bottom: 10px; }
  .choice-result p { max-width: 690px; color: var(--smoke); }
  .choice-result[hidden] { display: none; }

  .proof-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(24px, 5vw, 78px); align-items: center; }
  .proof-image { min-height: 700px; border-radius: var(--radius); overflow: hidden; position: relative; }
  .proof-image img { width: 100%; height: 100%; position: absolute; inset: 0; object-fit: cover; }
  .proof-image-note { position: absolute; left: 24px; right: 24px; bottom: 24px; padding: 18px 20px; border: 1px solid rgba(255,255,255,.22); border-radius: 14px; background: rgba(19,18,16,.7); color: rgba(255,255,255,.78); backdrop-filter: blur(16px); font-size: .75rem; }
  .proof-copy h2 { margin-bottom: 28px; }
  .proof-list { margin-top: 38px; border-top: 1px solid var(--line); }
  .proof-list li { padding-block: 22px; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 34px 1fr; gap: 14px; }
  .proof-list span { color: var(--gold); font-family: var(--serif); font-size: 1.2rem; }
  .proof-list strong { display: block; margin-bottom: 4px; font-size: .9rem; }
  .proof-list p { color: var(--smoke); font-size: .84rem; }

  .process-grid { counter-reset: process; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-dark); }
  .section-paper .process-grid, .section-muted .process-grid { border-color: var(--line); }
  .process-step { min-height: 320px; padding: 34px 34px 0 0; border-right: 1px solid var(--line-dark); position: relative; counter-increment: process; }
  .section-paper .process-step, .section-muted .process-step { border-color: var(--line); }
  .process-step:not(:first-child) { padding-left: 34px; }
  .process-step:last-child { border: 0; }
  .process-step::before { display: block; margin-bottom: 80px; color: var(--gold-light); font-size: .72rem; letter-spacing: .15em; content: "0" counter(process); }
  .process-step h3 { margin-bottom: 16px; }
  .process-step p { max-width: 315px; color: rgba(255,255,255,.58); font-size: .9rem; }
  .section-paper .process-step p, .section-muted .process-step p { color: var(--smoke); }

  .candidate-guide { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(38px, 7vw, 110px); align-items: start; }
  .candidate-intro { position: sticky; top: 130px; }
  .candidate-intro h2 { margin-bottom: 25px; }
  .candidate-stack { border-top: 1px solid var(--line); }
  .candidate-item { border-bottom: 1px solid var(--line); }
  .candidate-button { width: 100%; padding: 26px 4px; border: 0; background: transparent; display: grid; grid-template-columns: 44px 1fr auto; align-items: center; gap: 12px; cursor: pointer; text-align: left; }
  .candidate-button .icon { width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; color: var(--gold); font-family: var(--serif); }
  .candidate-button strong { font-size: .94rem; }
  .candidate-button .plus { font-size: 1.25rem; transition: transform .25s; }
  .candidate-button[aria-expanded="true"] .plus { transform: rotate(45deg); }
  .candidate-content { padding: 0 50px 26px 60px; color: var(--smoke); font-size: .9rem; }
  .candidate-content[hidden] { display: none; }
  .candidate-tags { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 7px; }
  .candidate-tags span { padding: 6px 10px; border-radius: 999px; background: var(--paper-3); color: var(--ink); font-size: .68rem; }

  .metal-marks { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
  .metal-mark { min-height: 170px; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper); display: flex; flex-direction: column; justify-content: space-between; transition: transform .3s var(--ease), box-shadow .3s, border-color .3s; }
  .metal-mark:hover { transform: translateY(-5px); border-color: var(--gold); box-shadow: 0 18px 40px rgba(30,26,20,.08); }
  .metal-symbol { font-family: var(--serif); font-size: 2.5rem; }
  .metal-mark p { color: var(--smoke); font-size: .78rem; }

  .compare { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
  .compare-controls { padding: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; background: var(--paper-2); }
  .compare-control { min-height: 48px; border: 0; border-radius: 12px; background: transparent; cursor: pointer; font-size: .8rem; font-weight: 700; }
  .compare-control[aria-selected="true"] { background: var(--ink); color: var(--white); }
  .compare-panels { display: grid; grid-template-columns: 1fr 1fr; }
  .compare-panel { min-height: 340px; padding: clamp(28px, 4vw, 52px); }
  .compare-panel:first-child { border-right: 1px solid var(--line); }
  .compare-panel h3 { margin-bottom: 24px; }
  .compare-panel li { padding-block: 14px; border-bottom: 1px solid var(--line); display: flex; gap: 12px; color: var(--smoke); font-size: .86rem; }
  .compare-panel li::before { color: var(--gold); content: "◇"; }
  .compare-panel.is-muted { opacity: .42; }

  .service-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .service-card { min-height: 260px; padding: 32px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); display: flex; flex-direction: column; justify-content: space-between; transition: transform .3s var(--ease), box-shadow .3s, border-color .3s; }
  .service-card:hover { transform: translateY(-4px); border-color: rgba(170,129,64,.6); box-shadow: 0 20px 50px rgba(25,20,14,.08); }
  .service-card .service-no { color: var(--gold); font-size: .68rem; letter-spacing: .13em; }
  .service-card h3 { margin-bottom: 12px; }
  .service-card p { max-width: 480px; color: var(--smoke); font-size: .86rem; }
  .service-card .text-link { margin-top: 22px; align-self: flex-start; }

  .faq-list { border-top: 1px solid var(--line); }
  .faq-list details { border-bottom: 1px solid var(--line); }
  .faq-list summary { min-height: 90px; padding: 28px 4px; display: grid; grid-template-columns: 1fr 32px; gap: 20px; align-items: center; cursor: pointer; font-family: var(--serif); font-size: clamp(1.15rem, 2vw, 1.55rem); list-style: none; }
  .faq-list summary::-webkit-details-marker { display: none; }
  .faq-list summary::after { width: 28px; height: 28px; border: 1px solid var(--line); border-radius: 50%; display: grid; place-content: center; content: "+"; font-family: var(--sans); font-size: .95rem; transition: transform .25s, background .25s; }
  .faq-list details[open] summary::after { background: var(--ink); color: var(--white); transform: rotate(45deg); }
  .faq-list details p { max-width: 740px; padding: 0 50px 30px 4px; color: var(--smoke); }

  .cta-panel { min-height: 550px; padding: clamp(38px, 7vw, 84px); border-radius: var(--radius-lg); overflow: hidden; position: relative; display: flex; flex-direction: column; align-items: flex-start; justify-content: flex-end; color: var(--white); isolation: isolate; }
  .cta-panel::before { position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(8,8,7,.9), rgba(8,8,7,.35)); content: ""; }
  .cta-panel img { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; }
  .cta-panel h2 { max-width: 800px; }
  .cta-panel p { max-width: 560px; margin-top: 20px; color: rgba(255,255,255,.72); }

  .breadcrumbs { margin-bottom: 20px; display: flex; gap: 8px; color: rgba(255,255,255,.6); font-size: .72rem; }
  .breadcrumbs a:hover { color: var(--white); }

  .split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(42px, 8vw, 120px); align-items: center; }
  .split-copy h2 { margin-bottom: 26px; }
  .split-copy p + p { margin-top: 16px; }
  .split-copy .lead { margin-bottom: 20px; }
  .split-media { min-height: 600px; border-radius: var(--radius); overflow: hidden; }
  .split-media img { width: 100%; height: 100%; object-fit: cover; }
  .fact-row { margin-top: 38px; display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); }
  .fact { padding: 22px 18px 0 0; }
  .fact + .fact { padding-left: 20px; border-left: 1px solid var(--line); }
  .fact strong { display: block; font-family: var(--serif); font-size: 1.7rem; font-weight: 400; }
  .fact span { color: var(--smoke); font-size: .74rem; }

  .course-list { border-top: 1px solid var(--line-dark); }
  .course-item { min-height: 170px; padding-block: 30px; border-bottom: 1px solid var(--line-dark); display: grid; grid-template-columns: 80px 1fr 1fr auto; gap: 30px; align-items: center; }
  .course-item > span { color: var(--gold-light); font-size: .7rem; letter-spacing: .12em; }
  .course-item h3 { font-size: clamp(1.6rem, 3vw, 2.8rem); }
  .course-item p { max-width: 360px; color: rgba(255,255,255,.6); font-size: .85rem; }
  .course-item .route-arrow { flex: none; }

  .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
  .contact-card { min-height: 330px; padding: clamp(30px, 5vw, 56px); background: var(--paper); }
  .contact-card h3 { margin-bottom: 22px; }
  .contact-card p, .contact-card address { max-width: 440px; color: var(--smoke); }
  .contact-card .text-link { margin-top: 30px; }
  .contact-card-accent { background: var(--ink); color: var(--white); }
  .contact-card-accent p { color: rgba(255,255,255,.65); }

  .site-footer { padding-top: clamp(90px, 11vw, 150px); background: #11100f; color: var(--white); }
  .footer-top { padding-bottom: 90px; display: grid; grid-template-columns: 1.25fr .75fr; gap: 80px; }
  .footer-statement h2 { max-width: 780px; margin-bottom: 38px; }
  .footer-contact { align-self: end; padding-top: 26px; border-top: 1px solid var(--line-dark); }
  .footer-label { margin-bottom: 16px; color: var(--gold-light); font-size: .68rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
  .footer-contact address { max-width: 390px; margin-bottom: 11px; color: rgba(255,255,255,.72); }
  .footer-contact > p:not(.footer-label) { color: rgba(255,255,255,.52); font-size: .8rem; }
  .footer-contact-links { margin-top: 28px; display: flex; flex-direction: column; gap: 8px; font-size: .85rem; }
  .footer-bottom { min-height: 130px; border-top: 1px solid var(--line-dark); display: grid; grid-template-columns: 170px 1fr auto; gap: 40px; align-items: center; }
  .footer-brand { width: max-content; height: 60px; display: flex; align-items: center; gap: 10px; opacity: .85; }
  .footer-brand img { width: 34px; height: auto; filter: brightness(0) invert(1); }
  .footer-bottom nav { justify-self: center; display: flex; flex-wrap: wrap; gap: 24px; color: rgba(255,255,255,.58); font-size: .7rem; }
  .footer-bottom a:hover { color: var(--white); }
  .footer-bottom > p { color: rgba(255,255,255,.4); font-size: .68rem; }
  .mobile-wa { display: none; }

  .reveal { opacity: 0; transform: translateY(32px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
  .reveal.is-visible { opacity: 1; transform: translateY(0); }
  .stagger > * { opacity: 0; transform: translateY(26px); transition: opacity .65s var(--ease), transform .65s var(--ease); }
  .stagger.is-visible > * { opacity: 1; transform: translateY(0); }
  .stagger.is-visible > *:nth-child(2) { transition-delay: .09s; }
  .stagger.is-visible > *:nth-child(3) { transition-delay: .18s; }
  .stagger.is-visible > *:nth-child(4) { transition-delay: .27s; }
}

@layer pages {
  .home-hero .page-hero-media { object-position: center 48%; }
  .metals-hero .page-hero-media { object-position: center; }
  .diamonds-hero { background: #ddd9d2; color: var(--ink); }
  .diamonds-hero::after { background: linear-gradient(90deg, rgba(248,247,243,.98) 0%, rgba(248,247,243,.82) 43%, rgba(248,247,243,.08) 72%), linear-gradient(0deg, rgba(248,247,243,.35), transparent 45%); }
  .diamonds-hero .page-hero-media { width: 56%; left: auto; object-position: center; }
  .diamonds-hero .hero-copy { color: var(--smoke); }
  .diamonds-hero .breadcrumbs { color: var(--smoke); }
  .diamonds-hero .breadcrumbs a:hover { color: var(--ink); }
  .diamonds-hero .hero-aside { border-color: var(--line); color: var(--smoke); }
  .diamonds-hero .hero-aside strong { color: var(--ink); }
  .diamonds-hero .hero-scroll { color: var(--smoke); }
  .diamonds-hero .hero-scroll::after { background: var(--line); }
  .formacion-hero .page-hero-media { filter: grayscale(.12); }
  .interior-hero { min-height: 720px; }
  .legal { padding-top: calc(var(--header-h) + 90px); }
  .legal h1 { max-width: 920px; margin-bottom: 32px; font-size: clamp(3rem, 6vw, 6rem); }
  .legal h2 { margin: 58px 0 18px; font-size: clamp(1.8rem, 3vw, 2.8rem); }
  .legal p, .legal li { color: var(--smoke); }
  .legal p + p { margin-top: 16px; }
  .legal ul { margin: 18px 0; padding-left: 20px; list-style: disc; }
}

@layer utilities {
  .mt-24 { margin-top: 24px; }
  .mt-40 { margin-top: 40px; }
  .gold { color: var(--gold); }
  .text-center { text-align: center; }

  @keyframes hero-settle { from { transform: scale(1.04); opacity: .7; } to { transform: scale(1); opacity: 1; } }
  @keyframes scroll-line { 0% { transform: scaleY(0); transform-origin: top; } 45% { transform: scaleY(1); transform-origin: top; } 55% { transform: scaleY(1); transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

  @media (max-width: 1000px) {
    :root { --header-h: 74px; --shell: min(100% - 36px, 1240px); }
    .header-inner { grid-template-columns: 150px 1fr auto; }
    .brand img { width: 32px; }
    .primary-nav { gap: 18px; }
    .primary-nav a { font-size: .72rem; }
    .route-grid { grid-template-columns: 1fr 1fr; }
    .route-card:last-child { grid-column: 1 / -1; min-height: 430px; }
    .choice-tabs { grid-template-columns: 1fr 1fr; }
    .proof-image { min-height: 600px; }
    .metal-marks { grid-template-columns: 1fr 1fr; }
    .course-item { grid-template-columns: 60px 1fr auto; }
    .course-item p { grid-column: 2 / 3; }
  }

  @media (max-width: 780px) {
    :root { --shell: min(100% - 28px, 1240px); --radius: 19px; --radius-lg: 25px; }
    body { padding-bottom: calc(68px + env(safe-area-inset-bottom)); }
    h1 { font-size: clamp(3.2rem, 16vw, 5.4rem); }
    h2 { font-size: clamp(2.65rem, 12vw, 4.6rem); }
    .section { padding-block: 92px; }
    .header-inner { grid-template-columns: 1fr auto; }
    .brand img { width: 31px; }
    .brand-name { font-size: 1rem; }
    .nav-toggle { display: grid; z-index: 2; }
    .header-cta { display: none; }
    .primary-nav { position: fixed; inset: 0; padding: 120px 26px 90px; background: var(--paper); color: var(--ink); display: flex; flex-direction: column; align-items: flex-start; justify-content: flex-start; gap: 8px; transform: translateX(100%); opacity: 0; visibility: hidden; transition: transform .42s var(--ease), opacity .3s, visibility .3s; }
    .primary-nav a { width: 100%; padding: 12px 0; border-bottom: 1px solid var(--line); font-family: var(--serif); font-size: 2.25rem; font-weight: 400; }
    .nav-open .primary-nav { transform: translateX(0); opacity: 1; visibility: visible; }
    .nav-open .nav-toggle { color: var(--ink); }
    .nav-open .nav-toggle span:not(.sr-only):first-of-type { transform: translateY(3.5px) rotate(45deg); }
    .nav-open .nav-toggle span:not(.sr-only):last-of-type { transform: translateY(-3.5px) rotate(-45deg); }
    .nav-open { overflow: hidden; }

    .page-hero { min-height: 820px; padding-bottom: 48px; }
    .page-hero::after { background: linear-gradient(0deg, rgba(10,9,8,.92) 0%, rgba(10,9,8,.34) 72%), linear-gradient(90deg, rgba(10,9,8,.45), transparent); }
    .page-hero-content { grid-template-columns: 1fr; gap: 22px; }
    .page-hero .hero-copy { font-size: 1rem; }
    .hero-aside, .hero-scroll { display: none; }
    .diamonds-hero::after { background: linear-gradient(0deg, rgba(248,247,243,.98) 0%, rgba(248,247,243,.55) 68%, rgba(248,247,243,.08)); }
    .diamonds-hero .page-hero-media { width: 100%; height: 72%; top: 0; }
    .trust-bar { overflow-x: auto; }
    .trust-bar-list { width: max-content; grid-template-columns: repeat(4, minmax(210px, 1fr)); }
    .trust-bar li:first-child { padding-left: 18px; }
    .section-heading { grid-template-columns: 1fr; gap: 24px; }
    .section-heading > :last-child { justify-self: start; }
    .route-grid { grid-template-columns: 1fr; }
    .route-card, .route-card:last-child { min-height: 480px; grid-column: auto; }
    .choice-tabs { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 4px; }
    .choice-tab { min-width: 200px; scroll-snap-align: start; }
    .choice-result { grid-template-columns: 1fr; }
    .proof-grid, .split, .candidate-guide { grid-template-columns: 1fr; }
    .proof-image { min-height: 520px; order: 2; }
    .candidate-intro { position: static; }
    .process-grid { grid-template-columns: 1fr; }
    .process-step, .process-step:not(:first-child) { min-height: 240px; padding: 30px 4px; border-right: 0; border-bottom: 1px solid var(--line-dark); }
    .process-step::before { margin-bottom: 46px; }
    .metal-marks { grid-template-columns: 1fr 1fr; }
    .compare-panels { grid-template-columns: 1fr; }
    .compare-panel:first-child { border-right: 0; border-bottom: 1px solid var(--line); }
    .compare-panel.is-muted { display: none; }
    .service-grid { grid-template-columns: 1fr; }
    .service-card { min-height: 235px; }
    .cta-panel { min-height: 600px; padding: 34px 26px; }
    .cta-panel::before { background: linear-gradient(0deg, rgba(8,8,7,.94), rgba(8,8,7,.18)); }
    .split-media { min-height: 500px; }
    .course-item { grid-template-columns: 42px 1fr auto; gap: 14px; }
    .course-item p { grid-column: 2 / 4; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; gap: 70px; }
    .footer-bottom { padding-block: 30px; grid-template-columns: 1fr; gap: 25px; }
    .footer-bottom nav { justify-self: start; gap: 16px; }
    .mobile-wa { position: fixed; z-index: 90; left: 10px; right: 10px; bottom: max(10px, env(safe-area-inset-bottom)); min-height: 52px; border: 1px solid rgba(255,255,255,.3); border-radius: 999px; background: rgba(20,19,17,.94); color: var(--white); display: flex; align-items: center; justify-content: center; gap: 10px; box-shadow: 0 10px 30px rgba(0,0,0,.25); backdrop-filter: blur(16px); font-size: .78rem; font-weight: 750; }
  }

  @media (max-width: 440px) {
    .button-row { flex-direction: column; align-items: stretch; }
    .btn { width: 100%; }
    .metal-marks { grid-template-columns: 1fr; }
    .candidate-content { padding-left: 4px; padding-right: 4px; }
    .faq-list summary { font-size: 1.18rem; }
  }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
    .reveal, .stagger > * { opacity: 1; transform: none; }
  }

  .no-js .reveal, .no-js .stagger > * { opacity: 1; transform: none; }
  .no-js .candidate-content { display: block; }
}