/*
  Meritphi — site styles
  Author: Jagadheeswaran
  Layout: golden-ratio split columns (1.618fr / 1fr); hero pairs the thesis with the content chain and its platforms.
*/

:root {
  /* Color — midnight navy with a coral accent */
  --bg: #f5f6fa;
  --surface: #ffffff;
  --ink: #0e1630;
  --muted: #525a73;
  --line: #d9dde8;
  --petrol: #0e1630;      /* midnight navy: dark bands */
  --petrol-2: #090f22;    /* footer */
  --on-petrol: #eef1fb;
  --on-petrol-muted: #9aa3c0;
  --brass: #ff6b4a;       /* coral accent */
  --brass-text: #d9442a;  /* coral for text on light */
  --brass-soft: #ffe6df;
  --ok: #2f8a5b;

  /* Type */
  --display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --body: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  /* Scale (ratio ≈ 1.25) */
  --t-xs: 0.78rem;
  --t-sm: 0.9rem;
  --t-md: 1.0625rem;
  --t-lg: 1.3rem;
  --t-xl: clamp(1.6rem, 1.2rem + 1.4vw, 2.2rem);
  --t-2xl: clamp(2.1rem, 1.4rem + 3vw, 3.4rem);
  --t-hero: clamp(2.4rem, 1.3rem + 4.4vw, 4.4rem);

  --radius: 10px;
  --maxw: 1180px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a1020;
    --surface: #111a33;
    --ink: #e9edf8;
    --muted: #9aa3c0;
    --line: #222c48;
    --petrol: #131d3d;
    --petrol-2: #070c1a;
    --on-petrol: #eef1fb;
    --on-petrol-muted: #9aa3c0;
    --brass: #ff7a5c;
    --brass-text: #ff8f75;
    --brass-soft: #3a1f1a;
    --ok: #5cc28c;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0a1020;
  --surface: #111a33;
  --ink: #e9edf8;
  --muted: #9aa3c0;
  --line: #222c48;
  --petrol: #131d3d;
  --petrol-2: #070c1a;
  --on-petrol: #eef1fb;
  --on-petrol-muted: #9aa3c0;
  --brass: #ff7a5c;
  --brass-text: #ff8f75;
  --brass-soft: #3a1f1a;
  --ok: #5cc28c;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: var(--t-md);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  z-index: 60;
  background: var(--bg);
}

img, svg { max-width: 100%; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--brass); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 {
  font-family: var(--display);
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: balance;
  margin: 0;
}
h1 { font-size: var(--t-hero); font-weight: 700; }
h2 { font-size: var(--t-2xl); font-weight: 700; }
h3 { font-size: var(--t-lg); font-weight: 650; letter-spacing: -0.01em; line-height: 1.2; }
p { margin: 0; }

.wrap {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
@media (min-width: 720px) {
  .wrap {
    padding-left: max(32px, env(safe-area-inset-left, 0px));
    padding-right: max(32px, env(safe-area-inset-right, 0px));
  }
}

.label {
  font-family: var(--mono);
  font-size: var(--t-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brass-text);
}
.lede { font-size: var(--t-lg); color: var(--muted); max-width: 60ch; line-height: 1.5; }
.prose { max-width: 65ch; display: grid; gap: 1rem; color: var(--muted); }
.prose strong { color: var(--ink); font-weight: 600; }

.skip {
  position: absolute; left: -999px; top: 0;
  background: var(--ink); color: var(--bg); padding: 0.6rem 1rem; z-index: 100;
}
.skip:focus { left: 16px; top: calc(env(safe-area-inset-top, 0px) + 8px); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--body); font-weight: 600; font-size: var(--t-sm);
  padding: 0.8rem 1.2rem; border-radius: 999px;
  text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--brass); color: #1a1206; }
.btn-primary:hover { background: var(--brass-text); color: var(--bg); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); }
.on-petrol .btn-ghost { border-color: rgba(230, 238, 236, 0.3); color: var(--on-petrol); }
.on-petrol .btn-ghost:hover { border-color: var(--on-petrol); }
.btn .arrow { transition: transform 0.15s ease; }
.btn:hover .arrow { transform: translateX(3px); }
@media (prefers-reduced-motion: reduce) { .btn, .btn .arrow { transition: none; } .btn:hover { transform: none; } }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  min-height: 68px;
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; text-decoration: none; }
.brand-mark { width: 34px; height: 34px; flex: none; }
.brand-name { font-family: var(--display); font-weight: 700; font-size: 1.2rem; letter-spacing: -0.02em; }
.brand-name span { color: var(--brass-text); }

.nav { display: flex; align-items: center; gap: 0.25rem; }
.nav a {
  text-decoration: none; font-size: var(--t-sm); font-weight: 500;
  padding: 0.5rem 0.75rem; border-radius: 999px; color: var(--muted);
}
.nav a:hover { color: var(--ink); background: var(--surface); }
.nav a[aria-current="page"] { color: var(--ink); }
.nav a[aria-current="page"]::after {
  content: ""; display: block; height: 2px; margin-top: 2px; border-radius: 2px; background: var(--brass);
}
.nav .btn { margin-left: 0.5rem; color: #1a1206; padding: 0.6rem 1rem; }
.nav .btn:hover { color: var(--bg); background: var(--brass-text); }

.nav-toggle {
  display: none;
  background: transparent; border: 1px solid var(--line); color: var(--ink);
  border-radius: 999px; padding: 0.5rem 0.9rem; font: 500 var(--t-sm) var(--body); cursor: pointer;
}
@media (max-width: 1020px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--line);
    padding: 0.5rem max(16px, env(safe-area-inset-right, 0px)) 1rem max(16px, env(safe-area-inset-left, 0px));
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 0.8rem 0.5rem; border-radius: 6px; }
  .nav a[aria-current="page"]::after { display: none; }
  .nav a[aria-current="page"] { color: var(--brass-text); }
  .nav .btn { margin: 0.5rem 0 0; justify-content: center; }
}

/* ---------- Sections ---------- */
.section { padding-block: clamp(3.5rem, 2rem + 5vw, 6.5rem); }
.section + .section { border-top: 1px solid var(--line); }
.section-head { display: grid; gap: 0.9rem; margin-bottom: clamp(2rem, 1.5rem + 2vw, 3rem); max-width: 760px; }
.section-head p { color: var(--muted); max-width: 62ch; }

.on-petrol { background: var(--petrol); color: var(--on-petrol); }
.on-petrol .label { color: var(--brass); }
.on-petrol .lede, .on-petrol .section-head p { color: var(--on-petrol-muted); }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(3rem, 2rem + 4vw, 5.5rem) clamp(3rem, 2rem + 4vw, 5rem); }
.hero-grid { display: grid; gap: clamp(2rem, 1rem + 3vw, 3.5rem); align-items: center; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 1.618fr 1fr; } }
.hero-copy { display: grid; gap: 1.4rem; min-width: 0; }
.motto {
  font-family: var(--mono); font-size: var(--t-sm); color: var(--muted);
  display: flex; flex-wrap: wrap; gap: 0.2rem 0.9rem;
}
.motto b { font-weight: 500; color: var(--ink); }
.motto b::after { content: "."; color: var(--brass); }
.hero h1 em { font-style: normal; color: var(--brass-text); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 0.4rem; }

/* Content chain panel — the stages content moves through, and the platforms at each stage */
.chain {
  background: var(--petrol); color: var(--on-petrol);
  border-radius: 14px; padding: 1.4rem 1.4rem 1.2rem; margin: 0; min-width: 0;
  border: 1px solid rgba(159, 183, 182, 0.18);
  box-shadow: 0 24px 60px -28px rgba(9, 15, 34, 0.55);
}
.chain .label { color: var(--brass); display: block; margin-bottom: 1rem; }
.chain ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.chain li { display: grid; grid-template-columns: 1.4rem 1fr; gap: 0.9rem; position: relative; padding-bottom: 1.1rem; }
.chain li:last-child { padding-bottom: 0; }
.chain li::before {
  content: ""; width: 11px; height: 11px; border-radius: 50%;
  border: 2px solid var(--brass); background: var(--petrol); margin-top: 0.35rem; justify-self: center; z-index: 1;
}
.chain li:not(:last-child)::after {
  content: ""; position: absolute; left: calc(0.7rem - 1px); top: 1.2rem; bottom: -0.1rem; width: 2px;
  background: rgba(214, 164, 74, 0.35);
}
.stage { display: grid; gap: 0.15rem; min-width: 0; }
.stage-name { font-family: var(--display); font-weight: 650; font-size: 1.05rem; }
.stage-tools { font-family: var(--mono); font-size: 0.74rem; color: var(--on-petrol-muted); line-height: 1.5; }

/* ---------- Credentials strip ---------- */
.creds { padding-block: 1.5rem; border-block: 1px solid var(--line); background: var(--surface); }
.creds .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1.5rem; }
.creds .label { color: var(--muted); }
.cred-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.cred {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: var(--t-sm); font-weight: 500;
  padding: 0.4rem 0.8rem; border-radius: 999px; border: 1px solid var(--line); background: var(--bg);
}
.cred::before { content: "✓"; color: var(--ok); font-weight: 700; font-size: 0.8rem; }

/* ---------- Services ---------- */
.services { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
@media (min-width: 680px) { .services { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1160px) { .services { grid-template-columns: repeat(4, 1fr); } }
.service { background: var(--surface); padding: 1.6rem; display: grid; gap: 0.75rem; align-content: start; min-width: 0; }
.service p { color: var(--muted); font-size: 0.98rem; }
.service .tools { font-family: var(--mono); font-size: var(--t-xs); color: var(--brass-text); letter-spacing: 0.02em; }
.service a.more { font-weight: 600; font-size: var(--t-sm); text-decoration: none; color: var(--ink); margin-top: 0.25rem; }
.service a.more:hover { color: var(--brass-text); }
.service.featured {
  background: var(--petrol); color: var(--on-petrol);
  grid-column: 1 / -1;
  grid-template-columns: 1fr; gap: 1rem 2.5rem;
}
@media (min-width: 860px) { .service.featured { grid-template-columns: 1.618fr 1fr; align-items: center; padding: 2.2rem; } }
.service.featured p { color: var(--on-petrol-muted); }
.service.featured h3 { font-size: var(--t-xl); }
.service.featured .tools { color: var(--brass); }
.featured-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; font-size: 0.95rem; }
.featured-list li { display: grid; grid-template-columns: 1.2rem 1fr; gap: 0.4rem; }
.featured-list li::before { content: "→"; color: var(--brass); }

/* ---------- Platforms ---------- */
.platforms { display: grid; gap: 1.5rem; }
@media (min-width: 720px) { .platforms { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .platforms { grid-template-columns: repeat(3, 1fr); } }
.platform-group { display: grid; gap: 0.7rem; align-content: start; padding-top: 1rem; border-top: 2px solid var(--ink); min-width: 0; }
.platform-group h3 { font-size: 1.05rem; }
.chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chips li {
  font-size: var(--t-sm); padding: 0.3rem 0.7rem; border-radius: 6px;
  background: var(--surface); border: 1px solid var(--line);
}

/* ---------- Process ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.5rem; counter-reset: step; }
@media (min-width: 760px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.steps li { display: grid; gap: 0.6rem; align-content: start; counter-increment: step; min-width: 0; }
.steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--mono); font-size: var(--t-sm); color: var(--brass);
  padding-bottom: 0.6rem; border-bottom: 1px solid rgba(159, 183, 182, 0.3);
}
.steps p { color: var(--on-petrol-muted); font-size: 0.98rem; }

/* ---------- Industries ---------- */
.industries { display: grid; gap: 1rem; }
@media (min-width: 720px) { .industries { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .industries { grid-template-columns: repeat(4, 1fr); } }
.industry h3 { font-size: 1.05rem; }
.industry { padding: 1.4rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); display: grid; gap: 0.5rem; align-content: start; }
.industry p { color: var(--muted); font-size: 0.95rem; }
.industry.more { background: transparent; border-style: dashed; }

/* ---------- Testimonial ---------- */
.quote { display: grid; gap: 1.5rem; max-width: 900px; margin: 0; }
.quote blockquote { margin: 0; font-family: var(--display); font-weight: 500; font-size: var(--t-xl); line-height: 1.3; letter-spacing: -0.015em; text-wrap: pretty; }
.quote blockquote::before { content: "“"; display: block; font-size: 4rem; line-height: 0.6; color: var(--brass); margin-bottom: 0.6rem; }
.quote figcaption { color: var(--muted); font-size: var(--t-sm); }
.quote figcaption strong { color: var(--ink); display: block; font-size: var(--t-md); }

/* ---------- CTA band ---------- */
.cta .wrap { display: grid; gap: 1.5rem; align-items: center; }
@media (min-width: 900px) { .cta .wrap { grid-template-columns: 1.618fr 1fr; } }
.cta-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
@media (min-width: 900px) { .cta-actions { justify-content: flex-end; } }

/* ---------- Page hero (inner pages) ---------- */
.page-hero { padding-block: clamp(3rem, 2rem + 4vw, 5rem) clamp(2.5rem, 2rem + 2vw, 3.5rem); border-bottom: 1px solid var(--line); }
.page-hero .wrap { display: grid; gap: 1rem; }
.page-hero h1 { font-size: var(--t-2xl); max-width: 22ch; }
.crumbs { font-family: var(--mono); font-size: var(--t-xs); color: var(--muted); display: flex; gap: 0.5rem; flex-wrap: wrap; }
.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--brass-text); }

/* ---------- Two-column detail blocks ---------- */
.detail { display: grid; gap: 1.5rem 3rem; scroll-margin-top: 90px; }
@media (min-width: 900px) { .detail { grid-template-columns: 1fr 1.618fr; } }
.detail + .detail { margin-top: clamp(3rem, 2rem + 3vw, 4.5rem); padding-top: clamp(3rem, 2rem + 3vw, 4.5rem); border-top: 1px solid var(--line); }
.detail-head { display: grid; gap: 0.75rem; align-content: start; }
.detail-body { display: grid; gap: 1.2rem; min-width: 0; }
.detail-body > p { color: var(--muted); max-width: 65ch; }
.ticks { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; }
@media (min-width: 640px) { .ticks.two { grid-template-columns: 1fr 1fr; gap: 0.6rem 1.5rem; } }
.ticks li { display: grid; grid-template-columns: 1.1rem 1fr; gap: 0.5rem; }
.ticks li::before { content: "→"; color: var(--brass-text); }

/* ---------- Cards (use cases, engagement) ---------- */
.cards { display: grid; gap: 1rem; }
@media (min-width: 720px) { .cards { grid-template-columns: repeat(2, 1fr); } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; display: grid; gap: 0.7rem; align-content: start; min-width: 0; }
.card p { color: var(--muted); font-size: 0.98rem; }
.flow {
  font-family: var(--mono); font-size: 0.78rem; color: var(--brass-text);
  display: flex; flex-wrap: wrap; gap: 0.3rem 0.4rem; align-items: center;
}
.flow span:not(:last-child)::after { content: " →"; color: var(--muted); }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 0; max-width: 820px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); padding-block: 1.1rem; }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--brass-text); font-size: 1.2rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--muted); margin-top: 0.7rem; max-width: 65ch; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; gap: 2.5rem; }
@media (min-width: 940px) { .contact-grid { grid-template-columns: 1.618fr 1fr; } }
.form { display: grid; gap: 1.1rem; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: clamp(1.25rem, 1rem + 1.5vw, 2rem); min-width: 0; }
.form-row { display: grid; gap: 1.1rem; }
@media (min-width: 620px) { .form-row { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: 0.35rem; min-width: 0; }
.field label { font-size: var(--t-sm); font-weight: 600; }
.field .hint { font-size: var(--t-xs); color: var(--muted); }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 0.7rem 0.8rem;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--brass); outline-offset: 0; border-color: transparent; }
.form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-note { font-size: var(--t-sm); padding: 0.8rem 1rem; border-radius: 8px; }
.form-note.ok { background: color-mix(in srgb, var(--ok) 14%, transparent); }
.form-note.warn { background: var(--brass-soft); }
.contact-info { display: grid; gap: 1.5rem; align-content: start; }
.info-item { display: grid; gap: 0.35rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--line); }
.info-item .value { font-size: var(--t-lg); font-weight: 500; overflow-wrap: anywhere; user-select: all; }
.info-item .value a { text-decoration: none; }
.copy {
  justify-self: start; font: 500 var(--t-xs) var(--mono); letter-spacing: 0.04em;
  background: transparent; border: 1px solid var(--line); color: var(--muted);
  border-radius: 999px; padding: 0.3rem 0.7rem; cursor: pointer;
}
.copy:hover { color: var(--ink); border-color: var(--ink); }

/* ---------- Team / about ---------- */
.facts { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
@media (min-width: 720px) { .facts { grid-template-columns: repeat(3, 1fr); } }
.fact { background: var(--surface); padding: 1.4rem; display: grid; gap: 0.35rem; }
.fact .value { font-family: var(--display); font-weight: 650; font-size: 1.25rem; }
.fact p { color: var(--muted); font-size: var(--t-sm); }

/* ---------- Footer ---------- */
.site-footer { background: var(--petrol-2); color: var(--on-petrol); padding-block: 3.5rem 2rem; }
.site-footer a { text-decoration: none; color: var(--on-petrol-muted); }
.site-footer a:hover { color: var(--on-petrol); }
.footer-grid { display: grid; gap: 2rem; }
@media (min-width: 640px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1.2fr; } }
.footer-grid h2 { font-family: var(--mono); font-size: var(--t-xs); letter-spacing: 0.08em; text-transform: uppercase; color: var(--brass); font-weight: 500; margin-bottom: 0.8rem; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.45rem; font-size: var(--t-sm); }
.footer-about { display: grid; gap: 1rem; max-width: 42ch; }
.footer-about p { color: var(--on-petrol-muted); font-size: var(--t-sm); }
.footer-about .brand-name span { color: var(--brass); }
.footer-base {
  margin-top: 2.5rem; padding-top: 1.25rem; border-top: 1px solid rgba(159, 183, 182, 0.2);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 1.5rem;
  font-size: var(--t-xs); color: var(--on-petrol-muted); font-family: var(--mono);
}

/* ---------- 404 ---------- */
.notfound { padding-block: clamp(4rem, 3rem + 6vw, 8rem); }
.notfound .wrap { display: grid; gap: 1.2rem; justify-items: start; }
.notfound .code { font-family: var(--mono); color: var(--brass-text); }

/* ---------- Service list (compact) ---------- */
.svc-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.75rem 2.5rem; }
@media (min-width: 720px) { .svc-list { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .svc-list { grid-template-columns: repeat(3, 1fr); } }
.svc-list li { display: grid; gap: 0.45rem; align-content: start; padding-top: 1rem; border-top: 1px solid var(--line); min-width: 0; }
.svc-list p { color: var(--muted); font-size: 0.98rem; }
.section-foot { margin-top: 2rem; }
.fine { font-size: var(--t-xs); color: var(--muted); margin-top: 2rem; }

/* ---------- Certifications ---------- */
.certs { background: var(--surface); border-bottom: 1px solid var(--line); }
.cert-grid { display: grid; gap: 1rem; }
@media (min-width: 900px) { .cert-grid { grid-template-columns: repeat(3, 1fr); } }
.cert {
  display: grid; grid-template-columns: 76px 1fr; gap: 1.1rem; align-items: start;
  padding: 1.4rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg); min-width: 0;
}
.cert-art, .cert-badge { width: 76px; height: 76px; object-fit: contain; }
.cert-body { display: grid; gap: 0.4rem; min-width: 0; }
.cert-body h3 { font-size: 1.1rem; }
.cert-body p { color: var(--muted); font-size: 0.95rem; }
.cert-verify { font-size: var(--t-sm); font-weight: 600; text-decoration: none; color: var(--brass-text); }
.cert-verify:hover { text-decoration: underline; }

/* =====================================================================
   Bold pass: dark hero with integration network, platform marquee,
   interactive solution cards, dark inner-page heroes
   ===================================================================== */
:root { --t-hero: clamp(2.6rem, 1.2rem + 4.6vw, 5rem); }

.hero, .page-hero {
  background-color: var(--petrol);
  background-image: radial-gradient(color-mix(in srgb, var(--on-petrol) 9%, transparent) 1px, transparent 1.2px);
  background-size: 22px 22px;
  color: var(--on-petrol);
  border-bottom: 0;
  position: relative;
  overflow: hidden;
}
.hero { padding-block: clamp(3.5rem, 2rem + 6vw, 7.5rem) clamp(3.5rem, 2rem + 5vw, 6.5rem); }
.hero::after, .page-hero::after {
  content: ""; position: absolute; inset: auto -10% -45% auto; width: 60vw; height: 60vw; max-width: 760px; max-height: 760px;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--brass) 22%, transparent), transparent);
  pointer-events: none;
}
.hero .wrap, .page-hero .wrap { position: relative; z-index: 1; }
.hero h1 { letter-spacing: -0.035em; line-height: 0.98; }
.hero h1 em, .page-hero h1 em { color: var(--brass); }
.hero .lede, .page-hero .lede { color: var(--on-petrol-muted); }
.hero .motto { color: var(--on-petrol-muted); }
.hero .motto b { color: var(--on-petrol); }
.hero .label, .page-hero .label { color: var(--brass); }
.page-hero .crumbs { color: var(--on-petrol-muted); }
.page-hero .crumbs a:hover { color: var(--brass); }
.hero .btn-ghost, .page-hero .btn-ghost { border-color: color-mix(in srgb, var(--on-petrol) 30%, transparent); color: var(--on-petrol); }
.hero .btn-ghost:hover, .page-hero .btn-ghost:hover { border-color: var(--on-petrol); }
.hero .btn-primary:hover, .page-hero .btn-primary:hover { background: var(--on-petrol); color: var(--petrol); }
.page-hero h1 { font-size: clamp(2.3rem, 1.3rem + 3.6vw, 4.2rem); letter-spacing: -0.03em; max-width: 18ch; }
.page-hero { padding-block: clamp(3.5rem, 2rem + 5vw, 6rem) clamp(3rem, 2rem + 3vw, 4.5rem); }

@media (min-width: 960px) { .hero-grid { grid-template-columns: 1.15fr 1fr; } }
.hero-net { margin: 0; min-width: 0; aspect-ratio: 1 / 1; max-width: 100%; width: 100%; max-height: 560px; justify-self: center; }
@media (max-width: 959px) { .hero-net { aspect-ratio: 4 / 3; max-height: 380px; } }
.hero-net canvas { width: 100%; height: 100%; display: block; }

.page-hero-split { display: grid; gap: 2.5rem; align-items: center; }
@media (min-width: 960px) { .page-hero-split { grid-template-columns: 1.2fr 1fr; } }
.page-hero-copy { display: grid; gap: 1rem; min-width: 0; }
.page-hero .chain { background: color-mix(in srgb, var(--petrol-2) 85%, transparent); }

/* Marquee */
.marquee { overflow: hidden; background: var(--ink); color: var(--bg); padding-block: 1.1rem; border-block: 1px solid var(--line); }
.marquee-track { display: flex; gap: 2.2rem; width: max-content; animation: marquee 48s linear infinite; }
.marquee span {
  font-family: var(--display); font-weight: 700; font-size: clamp(1.4rem, 1rem + 1.6vw, 2.3rem); letter-spacing: -0.02em; white-space: nowrap;
  display: inline-flex; align-items: center; gap: 2.2rem;
}
.marquee span::after { content: "φ"; font-family: var(--body); font-weight: 500; font-size: 0.7em; color: var(--brass); }
.marquee span.o { color: transparent; -webkit-text-stroke: 1.2px var(--bg); }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; } }

/* Interactive solution cards */
.services .service { transition: background-color 0.25s ease, color 0.25s ease; position: relative; }
.services .service::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: var(--brass);
  transform: scaleX(0); transform-origin: left; transition: transform 0.3s ease;
}
.services .service:hover { background: var(--petrol); color: var(--on-petrol); }
.services .service:hover::before { transform: scaleX(1); }
.services .service:hover p { color: var(--on-petrol-muted); }
.services .service:hover .tools { color: var(--brass); }
.services .service:hover a.more { color: var(--brass); }
@media (prefers-reduced-motion: reduce) { .services .service, .services .service::before { transition: none; } }

/* Bigger section headings */
.section-head h2 { font-size: clamp(2.2rem, 1.3rem + 3.4vw, 3.9rem); letter-spacing: -0.03em; }

/* Platform service cards (linked) */
.plat-cards { gap: 1rem; }
@media (min-width: 1040px) { .plat-cards { grid-template-columns: repeat(3, 1fr); } }
a.card { text-decoration: none; color: inherit; transition: border-color 0.2s ease, transform 0.2s ease, background-color 0.2s ease; }
a.card:hover { border-color: var(--brass); transform: translateY(-2px); }
a.card .more { font-weight: 600; font-size: var(--t-sm); color: var(--brass-text); margin-top: 0.25rem; }
@media (prefers-reduced-motion: reduce) { a.card { transition: none; } a.card:hover { transform: none; } }
.page-hero h1 em { font-style: normal; }