/* Savait Technologies — navy hero, white body, one teal accent */
:root {
  --navy-deep: #081634;   /* last frame of the intro video */
  --hero: #101E48;
  --hero-card: #13274D;
  --hero-line: #2B3F73;
  --navy: #0B1F4B;
  --ink: #0B1F4B;
  --ink-soft: #3D4B6B;
  --muted: #5B6B8F;
  --line: #E3E6EE;
  --paper: #FFFFFF;
  --paper-2: #F3F5F9;
  --teal: #12B5A5;
  --teal-bright: #56BFAE;
  --teal-ink: #0E8F83;    /* teal dark enough for text on white */
  --on-navy: #FFFFFF;
  --on-navy-soft: #B8C2DA;

  --font-display: "Archivo", "Arial Narrow", Arial, sans-serif;
  --font-body: "DM Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;

  --wrap: 1180px;
  --gutter: max(20px, env(safe-area-inset-left, 0px));
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.05; margin: 0; text-wrap: balance; }
p { margin: 0; }

.wrap {
  width: 100%;
  max-width: calc(var(--wrap) + 2 * var(--gutter));
  margin-inline: auto;
  padding-left: var(--gutter);
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
.eyebrow {
  font: 700 0.8125rem/1 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-ink);
}
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--teal); color: var(--navy-deep); padding: 10px 16px; z-index: 100;
}
.skip-link:focus { left: 16px; top: 16px; }
:focus-visible { outline: 3px solid var(--teal-bright); outline-offset: 3px; border-radius: 4px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 24px;
  border-radius: 999px; border: 2px solid transparent;
  font: 700 1rem/1 var(--font-body); text-decoration: none; cursor: pointer;
  transition: background-color .2s, color .2s, border-color .2s, transform .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-teal { background: var(--teal-bright); color: var(--navy-deep); }
.btn-teal:hover { background: #3fd6c7; }
.btn-ghost { border-color: rgba(255,255,255,.28); color: var(--on-navy); }
.btn-ghost:hover { border-color: var(--on-navy); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-deep); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  padding-top: env(safe-area-inset-top, 0px);
  background: rgba(16, 30, 72, .96);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 16px; }
.brand img { width: 168px; height: auto; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a:not(.btn) { color: var(--on-navy-soft); text-decoration: none; font-weight: 500; font-size: 0.975rem; }
.nav a:not(.btn):hover { color: var(--on-navy); }
.nav .btn { min-height: 44px; padding: 0 20px; font-size: 0.95rem; }

/* Hero */
.hero {
  background: radial-gradient(120% 80% at 85% 0%, #17295A 0%, var(--hero) 55%);
  color: var(--on-navy);
  padding-block: 88px 104px;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.hero-bg {
  position: absolute; z-index: -1; pointer-events: none;
  width: min(1180px, 165vw); height: auto;
  right: -18%; top: 4%;
  animation: drift 18s ease-in-out infinite alternate;
}
@keyframes drift { to { transform: translate(-2%, 3%) rotate(-2deg); } }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 56px; align-items: center; }
.hero .eyebrow { color: var(--teal-bright); }
.hero h1 { font-weight: 800; font-size: clamp(2.7rem, 5.6vw, 4.5rem); letter-spacing: -0.025em; margin-top: 20px; }
.hero h1 .hl { color: var(--teal-bright); }
.hero-lead { margin-top: 24px; font-size: 1.2rem; color: var(--on-navy-soft); max-width: 32em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero .btn-ghost { border-color: rgba(255,255,255,.22); }

/* Circuit diagram */
.diagram { min-width: 0; }
.diagram svg { width: 100%; height: auto; overflow: visible; }
.diagram .wire { fill: none; stroke: var(--hero-line); stroke-width: 3; stroke-linecap: round; stroke-dasharray: 1; stroke-dashoffset: 1; }
.diagram .junction { fill: var(--teal-bright); transform-box: fill-box; transform-origin: center; transform: scale(0); }
.diagram .mark-trace { stroke-dasharray: 1; stroke-dashoffset: 1; }
.diagram .mark-node { fill: var(--teal-bright); transform-box: fill-box; transform-origin: center; transform: scale(0); }
.diagram .card { opacity: 0; transform: translateX(14px); transition: opacity .5s, transform .5s; }
.diagram .card rect { fill: var(--hero-card); stroke: var(--hero-line); stroke-width: 2; transition: stroke .35s, fill .35s; }
.diagram .card .port { fill: var(--hero-line); transition: fill .35s; }
.diagram .card .t { fill: #fff; font: 600 23px var(--font-body); }
.diagram .card .g { fill: #A9B4CF; font: 500 14.5px var(--font-mono); letter-spacing: 1.6px; }
.diagram .card.on rect { stroke: var(--teal-bright); fill: #16305A; }
.diagram .card.on .port { fill: var(--teal-bright); }
.diagram .pulse { fill: #9FF2E4; }

.ready .diagram .mark-trace { animation: dash 1.3s .1s cubic-bezier(.65,0,.35,1) forwards; }
.ready .diagram .mark-node { animation: pop .55s 1.25s cubic-bezier(.34,1.56,.64,1) forwards; }
.ready .diagram .feed { animation: dash .45s 1.6s ease-out forwards; }
.ready .diagram .junction { animation: pop .4s 1.95s cubic-bezier(.34,1.56,.64,1) forwards; }
.ready .diagram .w0, .ready .diagram .w1, .ready .diagram .w2, .ready .diagram .w3 { animation: dash .7s 2.05s ease-out forwards; }
.ready .diagram .w1 { animation-delay: 2.15s; } .ready .diagram .w2 { animation-delay: 2.25s; } .ready .diagram .w3 { animation-delay: 2.35s; }
.ready .diagram .card { opacity: 1; transform: none; transition-delay: calc(2.5s + var(--i) * .12s); }
@keyframes dash { to { stroke-dashoffset: 0; } }
@keyframes pop { to { transform: scale(1); } }

/* Sections */
.section { padding-block: 104px; }
.section-head { display: flex; flex-direction: column; gap: 14px; max-width: 640px; margin-bottom: 56px; }
.section-head h2 { font-weight: 800; font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.015em; }
.section-head p { color: var(--ink-soft); font-size: 1.125rem; }

/* Services */
.services { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.service {
  border: 1px solid var(--line); border-radius: 18px; padding: 32px 30px 34px;
  display: flex; flex-direction: column; gap: 14px; background: var(--paper);
  transition: border-color .2s, transform .2s;
}
.service:hover { border-color: var(--teal); transform: translateY(-2px); }
.service-icon { width: 52px; height: 52px; border-radius: 14px; background: var(--paper-2); display: grid; place-items: center; }
.service h3 { font-size: 1.4rem; font-weight: 800; margin-top: 8px; }
.service p { color: var(--ink-soft); }
.service ul { margin: 6px 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.service li { display: flex; gap: 10px; align-items: baseline; font-size: 0.975rem; }
.service li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--teal); flex: none; transform: translateY(-2px); }

/* Process */
.process-band { background: var(--paper-2); }
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; counter-reset: step; position: relative; }
.step { padding: 0 24px 0 0; display: flex; flex-direction: column; gap: 12px; position: relative; }
.step-num {
  font: 700 0.875rem/1 var(--font-mono); color: var(--teal-ink);
  display: flex; align-items: center; gap: 12px;
}
.step-num::after { content: ""; flex: 1; height: 2px; background: linear-gradient(90deg, var(--teal) 0 40%, var(--line) 40%); border-radius: 2px; }
.step:last-child .step-num::after { background: var(--line); }
.step h3 { font-size: 1.6rem; font-weight: 800; margin-top: 8px; }
.step p { color: var(--ink-soft); font-size: 1rem; }

/* Mark story */
.mark { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 64px; align-items: center; }
.mark-figure { background: var(--navy-deep); border-radius: 24px; aspect-ratio: 1; max-width: 100%; display: grid; place-items: center; }
.mark-figure svg { width: 46%; height: auto; }
.trace { stroke-dasharray: 1; stroke-dashoffset: 0; }
.mark-figure.in .trace { animation: draw 1.6s cubic-bezier(.65,0,.35,1) both; }
.mark-figure.in .node { animation: node .5s 1.5s cubic-bezier(.34,1.56,.64,1) both; transform-origin: 793px 549px; }
@keyframes draw { from { stroke-dashoffset: 1; } }
@keyframes node { from { transform: scale(0); } }
.mark-copy { display: flex; flex-direction: column; gap: 18px; }
.mark-copy h2 { font-weight: 800; font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.015em; }
.mark-copy p { color: var(--ink-soft); font-size: 1.125rem; max-width: 34em; }
.mark-copy .quote { font: 500 1.05rem/1.6 var(--font-mono); color: var(--ink); border-left: 3px solid var(--teal); padding-left: 18px; }

/* Contact */
.contact-band { background: var(--navy); color: var(--on-navy); }
.contact { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 64px; align-items: start; }
.contact .eyebrow { color: var(--teal-bright); }
.contact h2 { font-weight: 800; font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.015em; margin-top: 14px; }
.contact-lead { color: var(--on-navy-soft); margin-top: 18px; font-size: 1.125rem; }
.contact-list { list-style: none; padding: 0; margin: 32px 0 0; display: flex; flex-direction: column; gap: 14px; }
.contact-list li { display: flex; gap: 14px; align-items: center; }
.contact-list a { color: var(--on-navy); text-decoration: none; font-weight: 600; }
.contact-list a:hover { color: var(--teal-bright); }
.contact-list .label { font: 700 0.75rem/1 var(--font-mono); letter-spacing: .08em; color: var(--on-navy-soft); width: 92px; flex: none; }

.form { background: var(--paper); color: var(--ink); border-radius: 20px; padding: 32px; display: flex; flex-direction: column; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-weight: 600; font-size: 0.95rem; }
.field input, .field select, .field textarea {
  font: 400 1rem/1.4 var(--font-body); color: var(--ink);
  border: 1.5px solid #CDD3DF; border-radius: 12px; padding: 13px 14px; background: #fff; width: 100%;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 4px rgba(18,181,165,.18); }
.form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.form .btn { align-self: flex-start; }
.hidden { position: absolute; left: -9999px; }

/* Footer */
.site-footer { background: var(--navy-deep); color: var(--on-navy-soft); padding-block: 44px; font-size: 0.95rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; }
.site-footer img { width: 132px; height: auto; }
.site-footer a { color: var(--on-navy-soft); text-decoration: none; }
.site-footer a:hover { color: var(--on-navy); }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }

/* Intro overlay */
.intro {
  position: fixed; inset: 0; z-index: 1000; background: var(--navy-deep);
  transition: opacity .6s ease, visibility .6s;
}
.intro video { width: 100%; height: 100%; object-fit: cover; }
.intro.done { opacity: 0; visibility: hidden; }
.intro-skip {
  position: absolute;
  right: max(20px, env(safe-area-inset-right, 0px));
  bottom: max(20px, env(safe-area-inset-bottom, 0px));
  background: rgba(255,255,255,.08); color: var(--on-navy-soft);
  border: 1px solid rgba(255,255,255,.2); border-radius: 999px;
  font: 600 0.875rem/1 var(--font-body); padding: 12px 18px; cursor: pointer; min-height: 44px;
}
.intro-skip:hover { color: #fff; border-color: rgba(255,255,255,.5); }

/* Simple pages (thanks, 404) */
.simple { min-height: 100vh; min-height: 100dvh; background: var(--navy-deep); color: var(--on-navy); display: grid; place-items: center; text-align: center; padding: 40px 20px; }
.simple-inner { display: flex; flex-direction: column; align-items: center; gap: 22px; max-width: 520px; }
.simple img { width: 72px; }
.simple h1 { font-weight: 800; font-size: clamp(2.2rem, 6vw, 3.4rem); }
.simple p { color: var(--on-navy-soft); font-size: 1.125rem; }

/* Responsive */
@media (max-width: 1100px) {
  .services { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 980px) {
  .hero-grid, .mark, .contact { grid-template-columns: minmax(0, 1fr); gap: 48px; }
  .hero-bg { right: -40%; top: 12%; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 40px; }
  .mark-figure { max-width: 420px; }
}
@media (max-width: 720px) {
  .nav a:not(.btn) { display: none; }
  .brand img { width: 138px; }
  .hero { padding-block: 56px 72px; }
  .services { grid-template-columns: minmax(0, 1fr); }
  .section { padding-block: 76px; }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .form-row { grid-template-columns: minmax(0, 1fr); }
  .form { padding: 24px 20px; }
  .terminal { font-size: 0.85rem; }
}
@media (prefers-reduced-motion: reduce) {
  .diagram .wire, .diagram .mark-trace { stroke-dashoffset: 0 !important; }
  .diagram .mark-node, .diagram .junction { transform: none !important; }
  .diagram .card { opacity: 1 !important; transform: none !important; }
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

@media (max-width: 480px) {
  .hero-actions { gap: 10px; }
  .hero-actions .btn { padding: 0 18px; font-size: 0.95rem; flex: 1 1 auto; }
  .nav .btn { padding: 0 16px; }
}

/* Live motion: blinking node, ripples, running data dots */
.diagram .ripple { fill: none; stroke: var(--teal-bright); stroke-width: 2; }
.diagram .live { opacity: 0; transition: opacity .8s 2.6s; }
.ready .diagram .live { opacity: 1; }
.diagram .card { transition: opacity .5s, transform .5s; }
.hero .eyebrow.cmd { text-transform: none; letter-spacing: .02em; font-size: .9rem; color: var(--on-navy-soft); }
.hero .eyebrow.cmd .cursor { width: .65em; height: 2px; vertical-align: middle; margin-left: 2px; }
.bg-current { stroke-dasharray: .07 .93; opacity: .16; animation: current 9s linear infinite; }
@keyframes current { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
.hero-bg { animation: drift 14s ease-in-out infinite alternate; }
@keyframes drift { 0% { transform: translate(0, 0) rotate(0deg) scale(1); } 100% { transform: translate(-4%, 4%) rotate(-3deg) scale(1.04); } }
@media (prefers-reduced-motion: reduce) { .diagram .live, .bg-current { display: none; } }
.hero .eyebrow .cursor { width: .65em; height: 2px; vertical-align: middle; margin-left: 4px; }

/* Steps fill in one after another as you scroll */
.step-num::after, .step:last-child .step-num::after {
  background: linear-gradient(var(--teal), var(--teal)) left center / 0% 100% no-repeat, var(--line) !important;
  transition: background-size 1s cubic-bezier(.65,0,.35,1) .25s;
}
.step.in .step-num::after { background-size: 100% 100%, auto !important; }
.step { opacity: .45; transform: translateY(16px); transition: opacity .6s, transform .6s; }
.step.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .step { opacity: 1; transform: none; } .step-num::after { background-size: 100% 100%, auto !important; } }