@layer reset, base, components, responsive;

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body, h1, h2, h3, p, ul, ol, blockquote { margin: 0; }
  ul, ol { padding: 0; }
  img, svg { display: block; max-width: 100%; }
  button, a { font: inherit; }
}

@layer base {
  :root {
    --ink: #07181f;
    --ink-soft: #17333d;
    --paper: #f4f1e8;
    --paper-bright: #fffdf7;
    --mist: #dfe9e5;
    --sea: #127c78;
    --sea-dark: #0b5d5b;
    --coral: #ef6a4c;
    --line: rgba(7, 24, 31, .16);
    --white-line: rgba(255, 255, 255, .16);
    --shadow: 0 24px 70px rgba(7, 24, 31, .12);
    --radius: 18px;
    --content: 1180px;
  }

  body {
    min-width: 320px;
    background: var(--paper);
    color: var(--ink);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.6;
    text-rendering: optimizeLegibility;
  }

  body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: .22;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.12'/%3E%3C/svg%3E");
    z-index: -1;
  }

  a { color: inherit; }
  p { color: var(--ink-soft); }
  h1, h2, h3 { line-height: 1.05; letter-spacing: -.04em; }
  h1 { font-size: clamp(3.4rem, 8vw, 7.2rem); font-weight: 760; }
  h2 { font-size: clamp(2.35rem, 4.5vw, 4.6rem); max-width: 16ch; }
  h3 { font-size: 1.65rem; }

  .skip-link {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 100;
    transform: translateY(-180%);
    padding: 10px 14px;
    background: var(--paper-bright);
    border: 2px solid var(--ink);
    border-radius: 8px;
  }
  .skip-link:focus { transform: translateY(0); }

  :focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px #fff, 0 0 0 6px #0b5e5b;
  }
}

@layer components {
  .site-header {
    width: min(calc(100% - 48px), var(--content));
    min-height: 88px;
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--line);
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--ink);
    font-size: 1.02rem;
    letter-spacing: .015em;
    text-decoration: none;
    white-space: nowrap;
  }
  .brand strong { font-weight: 760; }
  .brand-logo { width: 42px; height: 42px; border-radius: 11px; object-fit: cover; }

  nav { display: flex; align-items: center; gap: 32px; }
  nav a { color: var(--ink-soft); font-size: .9rem; font-weight: 650; text-decoration: none; }
  nav a:hover { color: var(--sea-dark); }
  nav .nav-cta { padding: 11px 16px; border: 1px solid var(--ink); border-radius: 999px; color: var(--ink); }

  .hero {
    width: min(calc(100% - 48px), var(--content));
    min-height: calc(100vh - 88px);
    margin-inline: auto;
    padding: 94px 0 88px;
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(330px, .75fr);
    gap: clamp(48px, 8vw, 112px);
    align-items: center;
  }

  .eyebrow {
    margin-bottom: 18px;
    color: var(--sea-dark);
    font-size: .76rem;
    font-weight: 800;
    letter-spacing: .14em;
    line-height: 1.3;
    text-transform: uppercase;
  }

  .hero h1 { max-width: 8.7ch; }
  .hero h1 span { color: var(--sea); }
  .hero-lede { max-width: 640px; margin-top: 32px; font-size: clamp(1.08rem, 1.5vw, 1.32rem); line-height: 1.65; }
  .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }

  .button {
    min-height: 50px;
    padding: 13px 21px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: .92rem;
    font-weight: 760;
    text-decoration: none;
    transition: transform .18s ease, background-color .18s ease, border-color .18s ease;
  }
  .button:hover { transform: translateY(-2px); }
  .button-primary { background: var(--ink); color: var(--paper-bright); }
  .button-primary:hover { background: var(--sea-dark); }
  .button-secondary { border-color: var(--line); background: rgba(255, 255, 255, .35); }
  .button-secondary:hover { border-color: var(--ink); }
  .button-light { background: var(--paper-bright); color: var(--ink); }
  .button-light:hover { background: white; }

  .trust-list { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 10px 26px; list-style: none; }
  .trust-list li { position: relative; padding-left: 17px; color: var(--ink-soft); font-size: .82rem; font-weight: 650; }
  .trust-list li::before { content: ""; position: absolute; left: 0; top: .62em; width: 6px; height: 6px; border-radius: 50%; background: var(--coral); }

  .hero-visual {
    position: relative;
    min-height: 540px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: clip;
  }
  .hero-visual::before {
    content: "";
    position: absolute;
    inset: 8% -8%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(18, 124, 120, .2), transparent 67%);
    filter: blur(8px);
  }

  .flow-heading { position: relative; z-index: 1; margin-bottom: 18px; display: flex; align-items: center; gap: 13px; }
  .flow-heading span, .flow-heading strong { display: block; }
  .flow-heading span { color: var(--sea-dark); font-size: .65rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
  .flow-heading strong { margin-top: 3px; color: var(--ink); font-size: .9rem; }
  .flow-logo { width: 56px; height: 56px; border-radius: 14px; object-fit: cover; box-shadow: 0 8px 24px rgba(7,24,31,.16); }

  .signal-card {
    position: relative;
    z-index: 1;
    width: 84%;
    padding: 24px;
    display: grid;
    gap: 4px;
    background: rgba(255, 253, 247, .92);
    border: 1px solid rgba(7, 24, 31, .13);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
  }
  .signal-card-source { align-self: flex-start; transform: rotate(-1.8deg); }
  .signal-card-process { align-self: flex-end; border-color: rgba(18, 124, 120, .38); transform: rotate(1.2deg); }
  .signal-card-result { align-self: flex-start; transform: rotate(-.8deg); }
  .signal-card strong { font-size: 1.1rem; letter-spacing: -.02em; }
  .signal-card > span:last-child { color: var(--ink-soft); font-size: .8rem; }
  .signal-label { color: var(--sea-dark); font-size: .65rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }

  .signal-line { position: relative; z-index: 0; height: 42px; }
  .signal-line::before { content: ""; position: absolute; left: 25%; top: 0; bottom: 0; border-left: 1px dashed rgba(18, 124, 120, .5); }
  .signal-line span { position: absolute; left: calc(25% - 3px); bottom: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--coral); }

  .proof-strip {
    padding: 22px max(24px, calc((100vw - var(--content)) / 2));
    display: flex;
    justify-content: space-between;
    gap: 24px;
    overflow-x: auto;
    background: var(--ink);
    scrollbar-width: none;
  }
  .proof-strip p { flex: 0 0 auto; color: rgba(255,255,255,.72); font-size: .72rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }

  .section { width: min(calc(100% - 48px), var(--content)); margin-inline: auto; padding: 132px 0; }
  .section-heading { display: grid; grid-template-columns: 1.25fr .75fr; column-gap: 80px; align-items: end; }
  .section-heading .eyebrow { grid-column: 1 / -1; }
  .section-heading > p:last-child { max-width: 490px; font-size: 1.05rem; }

  .service-grid { margin-top: 64px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .service-card {
    min-height: 470px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255,253,247,.55);
  }
  .service-card.featured { background: var(--sea-dark); color: var(--paper-bright); border-color: var(--sea-dark); transform: translateY(-16px); box-shadow: var(--shadow); }
  .service-card.featured p, .service-card.featured li { color: rgba(255,255,255,.78); }
  .service-card.featured .service-number, .service-card.featured .card-kicker { color: #a7e1dc; }
  .service-number { margin-bottom: auto; color: var(--sea-dark); font-size: .72rem; font-weight: 850; letter-spacing: .12em; }
  .card-kicker { margin: 28px 0 10px; color: var(--sea-dark); font-size: .67rem; font-weight: 850; letter-spacing: .11em; text-transform: uppercase; }
  .service-card h3 { margin: 22px 0 18px; }
  .service-card > p:not(.card-kicker) { font-size: .94rem; }
  .service-card ul { margin-top: 26px; padding-top: 20px; border-top: 1px solid var(--line); list-style: none; }
  .service-card.featured ul { border-color: var(--white-line); }
  .service-card li { position: relative; padding: 6px 0 6px 18px; color: var(--ink-soft); font-size: .82rem; }
  .service-card li::before { content: "↗"; position: absolute; left: 0; color: var(--coral); }

  .approach { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(60px, 10vw, 140px); align-items: start; }
  .approach-copy { position: sticky; top: 60px; }
  .approach-copy > p:not(.eyebrow) { max-width: 520px; margin-top: 28px; font-size: 1.05rem; }
  blockquote { margin-top: 42px; padding-left: 20px; border-left: 3px solid var(--coral); color: var(--ink); font-size: 1.12rem; font-weight: 730; }
  .approach-steps { list-style: none; }
  .approach-steps li { padding: 26px 0; display: grid; grid-template-columns: 56px 1fr; gap: 20px; border-top: 1px solid var(--line); }
  .approach-steps li:last-child { border-bottom: 1px solid var(--line); }
  .approach-steps > li > span { color: var(--sea-dark); font-size: .7rem; font-weight: 850; letter-spacing: .1em; }
  .approach-steps strong { display: block; margin-bottom: 6px; font-size: 1.18rem; }
  .approach-steps p { font-size: .92rem; }

  .operator { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; border-top: 1px solid var(--line); }
  .operator-copy { display: grid; gap: 24px; align-content: end; }
  .operator-copy p { font-size: 1.05rem; }

  .contact {
    width: min(calc(100% - 48px), var(--content));
    margin: 20px auto 0;
    padding: clamp(42px, 7vw, 82px);
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 48px;
    border-radius: 28px;
    background: var(--ink);
    color: var(--paper-bright);
  }
  .contact h2 { max-width: 12ch; }
  .contact p:not(.eyebrow) { max-width: 650px; margin-top: 22px; color: rgba(255,255,255,.7); }
  .contact .eyebrow { color: #a7e1dc; }
  .contact .button { flex: 0 0 auto; }

  footer {
    width: min(calc(100% - 48px), var(--content));
    margin-inline: auto;
    padding: 46px 0 38px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
  }
  footer p { font-size: .74rem; }
  .footer-brand { font-size: .82rem; }
  .footer-brand .brand-logo { width: 34px; height: 34px; border-radius: 9px; }
}

@layer responsive {
  @media (max-width: 900px) {
    .site-header { min-height: 76px; }
    nav > a:not(.nav-cta) { display: none; }
    .hero { min-height: auto; padding: 78px 0; grid-template-columns: 1fr; gap: 36px; }
    .hero h1 { font-size: clamp(3.3rem, 9vw, 5.4rem); }
    .hero-visual { width: min(100%, 560px); min-height: 460px; justify-self: center; }
    .signal-card { width: 94%; }
    .section { padding: 100px 0; }
    .section-heading { grid-template-columns: 1fr; gap: 26px; }
    .service-grid { grid-template-columns: 1fr; }
    .service-card { min-height: 0; }
    .service-card.featured { transform: none; }
    .service-number { margin-bottom: 28px; }
    .approach { grid-template-columns: 1fr; }
    .approach-copy { position: static; }
    .operator { grid-template-columns: 1fr; gap: 36px; }
    .contact { align-items: flex-start; flex-direction: column; }
    footer { flex-wrap: wrap; }
    .proof-strip { flex-wrap: wrap; justify-content: center; overflow: visible; }
    .proof-strip p { white-space: normal; }
  }

  @media (max-width: 680px) {
    h1 { font-size: clamp(3rem, 15vw, 4.7rem); }
    h2 { font-size: clamp(2.2rem, 11vw, 3.4rem); }
    .site-header, .hero, .section, .contact, footer { width: min(calc(100% - 32px), var(--content)); }
    .site-header { min-height: 68px; }
    .brand { font-size: .9rem; gap: 8px; }
    .brand-logo { width: 36px; height: 36px; border-radius: 9px; }
    .site-header nav { display: none; }
    .hero { padding: 64px 0 72px; grid-template-columns: 1fr; }
    .hero-lede { margin-top: 24px; }
    .hero-actions { display: grid; }
    .button { width: 100%; }
    .trust-list { gap: 8px 16px; }
    .hero-visual { min-height: 440px; width: min(100%, 380px); margin: 8px auto 0; }
    .proof-strip { padding-inline: 16px; }
    .section { padding: 84px 0; }
    .service-grid { margin-top: 44px; }
    .service-card { padding: 24px; }
    .approach-steps li { grid-template-columns: 42px 1fr; }
    .contact { margin-top: 0; padding: 34px 24px; border-radius: 20px; }
    footer { align-items: flex-start; flex-direction: column; }
  }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: .01ms !important; }
  }
}