/* ============================================================
   TrueTen - shared service-page stylesheet
   Matches the redesigned homepage / Om os design system
   ============================================================ */
:root {
  --bg-0:        #143542;
  --bg-1:        #1A3945;
  --bg-2:        #254E58;
  --bg-3:        #2C4F4B;
  --surface:     #2C5660;
  --line:        rgba(180, 192, 195, 0.14);
  --line-strong: rgba(180, 192, 195, 0.26);
  --ink-0:       #F4F2F3;
  --ink-1:       #DDE3E4;
  --ink-2:       #B4C0C3;
  --ink-3:       #A6B8BB;
  --ink-4:       #4D6E75;
  --accent:      #7FCBCC;
  --accent-2:    #2C4F4B;
  --pulse:       #A8E3E4;

  --display: "Outfit", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --sans:    "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --wordmark: "Montserrat", ui-sans-serif, system-ui, sans-serif;
  --mono:    "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --maxw: 1320px;
  --pad: clamp(20px, 4vw, 56px);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-0);
  color: var(--ink-1);
  font-family: var(--sans);
  font-weight: 400; font-size: 16px; line-height: 1.55; letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--accent); color: var(--bg-0); }

/* ---------- Page background ---------- */
.page-grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 1;
  background-image:
    radial-gradient(1200px 800px at 80% -10%, rgba(127,203,204,0.08), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, rgba(77,110,117,0.08), transparent 60%);
  mix-blend-mode: screen;
}
.page-noise {
  position: fixed; inset: 0; pointer-events: none; z-index: 2; opacity: 0.035;
  background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.6 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px var(--pad);
  transition: padding .35s ease, background .35s ease, backdrop-filter .35s ease;
}
.nav.is-stuck {
  padding: 12px var(--pad);
  background: rgba(7, 21, 28, 0.72);
  backdrop-filter: blur(18px) saturate(140%); -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.nav-logo {
  font-family: var(--mono); font-size: 18px; font-weight: 500; letter-spacing: 0.16em;
  display: flex; align-items: center; gap: 12px; color: var(--ink-0);
}
.nav-logo-img { height: 30px; width: auto; display: block; filter: brightness(0) invert(1); opacity: 0.95; }
.nav-links { display: flex; gap: 28px; font-size: 14px; color: var(--ink-2); }
.nav-links a { position: relative; padding: 6px 0; transition: color .2s ease; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform .35s cubic-bezier(.2,.7,.2,1);
}
.nav-links a:hover { color: var(--ink-0); }
.nav-links a:hover::after, .nav-links a.is-current::after { transform: scaleX(1); }
.nav-links a.is-current { color: var(--ink-0); }

/* Services dropdown */
.nav-has-sub { position: relative; }
.nav-trigger { display: inline-flex; align-items: center; gap: 6px; }
.nav-trigger .caret { width: 7px; height: 7px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: translateY(-2px) rotate(45deg); transition: transform .3s ease; opacity: 0.7; }
.nav-has-sub:hover .nav-trigger .caret { transform: translateY(0) rotate(225deg); }
.nav-sub {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(-6px);
  padding-top: 16px; min-width: 290px;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .25s ease, transform .25s ease, visibility .25s;
}
.nav-has-sub:hover .nav-sub { opacity: 1; visibility: visible; pointer-events: auto; transform: translateX(-50%) translateY(0); }
.nav-sub-panel {
  background: rgba(7,21,28,0.92);
  backdrop-filter: blur(18px) saturate(140%); -webkit-backdrop-filter: blur(18px) saturate(140%);
  border: 1px solid var(--line); border-radius: 14px; padding: 8px;
  display: flex; flex-direction: column; gap: 2px;
  box-shadow: 0 24px 60px -20px rgba(0,0,0,0.6);
}
.nav-sub-panel a { position: relative; padding: 11px 14px; border-radius: 9px; font-size: 14px; color: var(--ink-2); white-space: nowrap; transition: background .2s ease, color .2s ease; }
.nav-sub-panel a::after { display: none; }
.nav-sub-panel a:hover { background: rgba(127,203,204,0.12); color: var(--ink-0); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 18px; border-radius: 999px;
  background: rgba(244,242,243,0.04); border: 1px solid var(--line-strong);
  font-size: 13px; color: var(--ink-0);
  transition: background .25s ease, transform .25s ease, border-color .25s ease;
}
.nav-cta:hover { background: rgba(127,203,204,0.14); border-color: var(--accent); transform: translateY(-1px); }
.nav-cta-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); }
@media (max-width: 860px) { .nav-links { display: none; } }

/* ---------- Hero ---------- */
.svc-hero { position: relative; overflow: hidden; isolation: isolate; padding: 180px var(--pad) 90px; }
.aurora { position: absolute; inset: -10%; z-index: 0; pointer-events: none; filter: blur(80px) saturate(120%); }
.aurora span { position: absolute; display: block; border-radius: 50%; mix-blend-mode: screen; opacity: 0.40; animation: float 22s ease-in-out infinite; }
.aurora .a1 { width: 55vmax; height: 55vmax; left: -18vmax; top: -22vmax; background: radial-gradient(circle, #6FB7B8 0%, transparent 60%); }
.aurora .a2 { width: 46vmax; height: 46vmax; right: -14vmax; top: -6vmax; background: radial-gradient(circle, #2C4F4B 0%, transparent 60%); animation-delay: -8s; }
.aurora .a3 { width: 38vmax; height: 38vmax; left: 28vmax; top: -4vmax; background: radial-gradient(circle, #4D6E75 0%, transparent 60%); animation-delay: -14s; }
@keyframes float { 0%,100% { transform: translate(0,0) scale(1); } 33% { transform: translate(8vmax,-6vmax) scale(1.1); } 66% { transform: translate(-6vmax,4vmax) scale(0.95); } }
.svc-hero-inner { position: relative; z-index: 3; max-width: var(--maxw); margin: 0 auto; }
.svc-hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(36px, 5vw, 72px); align-items: center; }
@media (max-width: 920px) { .svc-hero-grid { grid-template-columns: 1fr; gap: 40px; } }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-2);
  padding: 7px 14px; border-radius: 999px; background: rgba(244,242,243,0.04); border: 1px solid var(--line-strong);
  margin-bottom: 30px;
}
.eyebrow .num { display: inline-block; padding: 2px 8px; border-radius: 4px; background: rgba(127,203,204,0.12); color: var(--accent); border: 1px solid rgba(127,203,204,0.24); letter-spacing: 0.1em; }
.svc-hero h1 {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(40px, 5.6vw, 84px); line-height: 1.0; letter-spacing: -0.04em; color: var(--ink-0); margin: 0;
}
.svc-hero .kicker {
  margin: 26px 0 0; font-family: var(--display); font-weight: 500;
  font-size: clamp(19px, 1.8vw, 26px); color: var(--accent); letter-spacing: -0.02em;
}
.svc-hero .lede { margin: 18px 0 0; max-width: 56ch; color: var(--ink-2); font-size: clamp(16px, 1.2vw, 19px); line-height: 1.55; }

.svc-hero-visual {
  position: relative; aspect-ratio: 4/3; border-radius: 22px; overflow: hidden;
  border: 1px solid var(--line-strong); background: linear-gradient(135deg, #1A3945, #2C4F4B);
}
.svc-hero-visual img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  filter: saturate(0.66) contrast(1.05) brightness(0.92);
}
.svc-hero-visual::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(180deg, rgba(20,53,66,0) 55%, rgba(20,53,66,0.5) 100%),
    linear-gradient(135deg, rgba(127,203,204,0.18), transparent 58%);
  mix-blend-mode: multiply; opacity: 0.95;
}

/* ---------- Article ---------- */
section { position: relative; z-index: 3; }
.svc-body { padding: clamp(50px, 7vw, 96px) 0 clamp(20px, 4vw, 40px); }
.article { max-width: 860px; margin: 0 auto; padding: 0 var(--pad); }
.article > * { max-width: 720px; }
.article h2 {
  font-family: var(--display); font-weight: 600; font-size: clamp(28px, 3.4vw, 42px);
  line-height: 1.08; letter-spacing: -0.035em; color: var(--ink-0);
  margin: clamp(48px, 6vw, 76px) 0 22px;
}
.article h2:first-child { margin-top: 0; }
.article h3 {
  font-family: var(--display); font-weight: 600; font-size: clamp(20px, 2vw, 26px);
  letter-spacing: -0.025em; color: var(--ink-0); margin: 40px 0 16px;
}
.article p { color: var(--ink-2); font-size: clamp(16px, 1.12vw, 18px); margin: 0 0 18px; }
.article p.lead { color: var(--ink-1); font-size: clamp(18px, 1.4vw, 22px); line-height: 1.5; }
.article strong { color: var(--ink-0); font-weight: 600; }
.article a.inline { color: var(--accent); border-bottom: 1px solid rgba(127,203,204,0.4); transition: border-color .2s ease; }
.article a.inline:hover { border-color: var(--accent); }

/* Check list */
.check-list { list-style: none; padding: 0; margin: 8px 0 18px; display: flex; flex-direction: column; gap: 14px; max-width: 720px; }
.check-list li {
  position: relative; padding-left: 38px; color: var(--ink-1); font-size: clamp(15px, 1.05vw, 17px); line-height: 1.5;
}
.check-list li::before {
  content: ""; position: absolute; left: 0; top: 2px;
  width: 22px; height: 22px; border-radius: 50%;
  background: rgba(127,203,204,0.12); border: 1px solid rgba(127,203,204,0.4);
}
.check-list li::after {
  content: ""; position: absolute; left: 8px; top: 7px;
  width: 5px; height: 10px; border: solid var(--accent); border-width: 0 2px 2px 0; transform: rotate(45deg);
}

/* Pillars / numbered steps */
.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 20px; overflow: hidden; margin: 28px 0 18px; max-width: 860px; }
@media (max-width: 640px) { .pillars { grid-template-columns: 1fr; } }
.pillar { background: var(--bg-1); padding: 30px 30px 32px; transition: background .3s ease; }
.pillar:hover { background: #1F4452; }
.pillar .pn { font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em; color: var(--accent); margin-bottom: 14px; }
.pillar h4 { font-family: var(--display); font-weight: 600; font-size: 20px; letter-spacing: -0.02em; color: var(--ink-0); margin: 0 0 10px; }
.pillar p { color: var(--ink-2); font-size: 14px; margin: 0; }

/* Ordered steps (vertical) */
.steps { list-style: none; counter-reset: step; padding: 0; margin: 24px 0 18px; max-width: 760px; display: flex; flex-direction: column; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.steps li { counter-increment: step; position: relative; background: var(--bg-1); padding: 24px 28px 24px 76px; transition: background .3s ease; }
.steps li:hover { background: #1F4452; }
.steps li::before {
  content: counter(step, decimal-leading-zero); position: absolute; left: 28px; top: 24px;
  font-family: var(--mono); font-size: 13px; color: var(--accent); letter-spacing: 0.06em;
}
.steps li strong { display: block; font-family: var(--display); font-weight: 600; font-size: 18px; color: var(--ink-0); letter-spacing: -0.02em; margin-bottom: 6px; }
.steps li span { color: var(--ink-2); font-size: 15px; }

/* ---------- CTA ----------*/
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }
.cta { position: relative; padding: clamp(60px,8vw,120px) 0; background: var(--bg-0); overflow: hidden; }
.cta-card {
  position: relative; max-width: var(--maxw); margin: 0 auto; border-radius: 28px;
  padding: clamp(44px, 6vw, 84px) clamp(32px, 6vw, 76px);
  background:
    radial-gradient(800px 500px at 80% 20%, rgba(127,203,204,0.28), transparent 60%),
    linear-gradient(135deg, #20485A 0%, var(--bg-1) 50%, #2C4F4B 100%);
  border: 1px solid var(--line-strong); overflow: hidden; isolation: isolate;
}
.cta-card::before {
  content: ""; position: absolute; inset: -2px; z-index: -1;
  background: conic-gradient(from 0deg, transparent, rgba(127,203,204,0.45), transparent 30%, transparent 70%, rgba(127,203,204,0.45), transparent);
  animation: spin 12s linear infinite; filter: blur(40px); opacity: 0.6;
}
@keyframes spin { to { transform: rotate(360deg); } }
.cta-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; align-items: end; }
@media (max-width: 880px) { .cta-grid { grid-template-columns: 1fr; gap: 32px; } }
.cta-title { font-family: var(--display); font-weight: 600; font-size: clamp(34px, 4.6vw, 62px); line-height: 1.0; letter-spacing: -0.04em; color: var(--ink-0); margin: 0; }
.cta-title .it { font-weight: 300; color: var(--accent); }
.cta-side { display: flex; flex-direction: column; gap: 14px; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 16px 26px; border-radius: 999px; font-size: 14px; font-weight: 500; letter-spacing: 0.01em; cursor: pointer; border: 0; transition: transform .25s ease, background .25s ease, box-shadow .35s ease; }
.btn-primary { background: linear-gradient(135deg, #F4F2F3 0%, #B4C0C3 100%); color: var(--bg-1); box-shadow: 0 10px 40px -10px rgba(127,203,204,0.45), inset 0 1px 0 rgba(255,255,255,0.6); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { background: rgba(244,242,243,0.04); color: var(--ink-0); border: 1px solid var(--line-strong); }
.btn-ghost:hover { background: rgba(127,203,204,0.12); border-color: var(--accent); transform: translateY(-2px); }
.btn .arr { transition: transform .3s ease; }
.btn:hover .arr { transform: translate(4px,0); }
.cta-meta { display: grid; grid-template-columns: auto 1fr; gap: 8px 18px; font-size: 14px; color: var(--ink-2); padding-top: 24px; margin-top: 24px; border-top: 1px solid var(--line); }
.cta-meta .k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3); padding-top: 3px; }

/* ---------- Footer ---------- */
.footer { background: var(--bg-0); padding: 60px var(--pad) 32px; border-top: 1px solid var(--line); position: relative; z-index: 3; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; }
@media (max-width: 800px) { .footer-inner { grid-template-columns: 1fr 1fr; } }
.footer h4 { font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-3); margin: 0 0 18px; font-weight: 400; }
.footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer ul a { font-size: 14px; color: var(--ink-1); transition: color .2s ease; }
.footer ul a:hover { color: var(--accent); }
.footer .brand-block { display: flex; flex-direction: column; gap: 18px; }
.footer .brand-block p { color: var(--ink-3); font-size: 13px; max-width: 38ch; margin: 0; }
.footer-brand img { max-height: 84px; width: auto; display: block; filter: brightness(0) invert(1); opacity: 0.92; }
.footer-bottom { max-width: var(--maxw); margin: 60px auto 0; display: flex; justify-content: space-between; align-items: center; padding-top: 24px; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1); }
.reveal.is-in { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .08s; }
.reveal-delay-2 { transition-delay: .16s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}