/* =========================================================
   GateIQ — design tokens (DESIGN.md)
   ========================================================= */
:root {
  --color-void: #000000;
  --color-bone-white: #ffffff;
  --color-ash-gray: #9a9a9a;
  --color-silver-mist: #bdbdbd;
  --color-electric-iris: #8052ff;
  --color-saffron-spark: #ffb829;
  --color-deep-verdant: #15846e;

  --font: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --text-caption: 12px;
  --text-nav-label: 14px;
  --text-body: 18px;
  --text-heading-2xs: 24px;

  --radius: 24px;
  --page-max-width: 1280px;
  --gutter: clamp(16px, 4vw, 48px);
  --section-pad: clamp(96px, 12vw, 168px);

  --faint: rgba(255, 255, 255, 0.12);
  --ease-out: cubic-bezier(.2, .8, .2, 1);

  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { background: var(--color-void); scroll-behavior: smooth; }

body {
  background: var(--color-void);
  color: var(--color-bone-white);
  font-family: var(--font);
  font-weight: 200;
  font-size: var(--text-body);
  line-height: 1.5;
  font-feature-settings: "ss01" on;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ol, ul { list-style: none; }
em { font-style: normal; }
::selection { background: var(--color-electric-iris); color: #fff; }
:focus-visible { outline: 2px solid var(--color-saffron-spark); outline-offset: 4px; border-radius: 4px; }

.wrap { width: 100%; max-width: var(--page-max-width); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Typography ---------- */
.display, .h-xl, .h-lg, h3 { font-weight: 400; letter-spacing: -0.04em; }

.display { font-size: clamp(52px, 8.4vw, 113px); line-height: 0.98; }
.h-xl    { font-size: clamp(42px, 6.2vw, 78px);  line-height: 1.02; }
.h-lg    { font-size: clamp(36px, 4.4vw, 56px);  line-height: 1.06; }

.dim   { color: var(--color-ash-gray); }
.amber { color: var(--color-saffron-spark); }

.eyebrow {
  font-size: var(--text-nav-label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  color: var(--color-saffron-spark);
  margin-bottom: 24px;
}

.lead { font-size: clamp(18px, 1.5vw, 20px); color: var(--color-bone-white); max-width: 520px; }
.lead em { color: var(--color-saffron-spark); }

.body-col { color: var(--color-silver-mist); max-width: 540px; }

/* ---------- Buttons ---------- */
.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--color-electric-iris);
  color: #fff;
  font-size: var(--text-nav-label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  padding: 15px 24px;
  border-radius: var(--radius);
  transition: background .25s, transform .25s var(--ease-out);
}
.btn-primary:hover { background: #9270ff; transform: translateY(-2px); }

.ghost {
  font-size: var(--text-nav-label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  color: var(--color-ash-gray);
  transition: color .2s;
}
.ghost:hover { color: #fff; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background .3s;
}
.nav.scrolled { background: rgba(0, 0, 0, .86); }
.nav-inner {
  max-width: var(--page-max-width); margin: 0 auto; padding: 0 var(--gutter);
  height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: 17px; letter-spacing: -0.01em; }
.brand-mark { width: 30px; height: 30px; display: block; transition: transform .5s var(--ease-out); }
.brand:hover .brand-mark { transform: rotate(-12deg) scale(1.08); }
.nav-links { display: flex; gap: 36px; }
.nav-links a {
  font-size: var(--text-nav-label); font-weight: 600; text-transform: uppercase; letter-spacing: 0.025em;
  color: var(--color-ash-gray); transition: color .2s;
}
.nav-links a:hover { color: #fff; }

/* ---------- Sections ---------- */
.section { padding: var(--section-pad) 0; scroll-margin-top: 40px; }
.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(36px, 6vw, 96px); align-items: start; }
.section-head { margin-bottom: clamp(48px, 7vw, 96px); align-items: end; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s var(--ease-out), transform .9s var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }

/* =========================================================
   HERO
   ========================================================= */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; justify-content: center; overflow: hidden; }
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-inner { position: relative; z-index: 1; padding-top: 120px; padding-bottom: 96px; pointer-events: none; }
.hero-inner a { pointer-events: auto; }
.hero-copy { max-width: 620px; }
.hero-title { margin-bottom: 36px; }
.hero-title .w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .06em; margin-bottom: -.06em; }
.hero-title .w > span { display: inline-block; transform: translateY(105%); transition: transform 1.1s var(--ease-out); }
.hero-title.in .w > span { transform: none; }
.hero-actions { display: flex; align-items: center; gap: 30px; margin-top: 36px; flex-wrap: wrap; }

.hero-legend {
  position: absolute; left: 0; right: 0; bottom: 28px; z-index: 1;
  display: flex; justify-content: flex-end; gap: 24px;
  font-size: var(--text-caption); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--color-ash-gray);
}
.hero-legend span { display: inline-flex; align-items: center; gap: 8px; }
.hero-legend svg { width: 12px; height: 12px; fill: none; stroke-width: 1.3; }

/* =========================================================
   NEDEN
   ========================================================= */
.pains { margin-top: 48px; display: grid; gap: 36px; }
.pains li { display: grid; grid-template-columns: 48px 1fr; gap: 12px; }
.pains .n, .gains .n, .flow-steps .n, .plug-steps .n {
  font-size: var(--text-nav-label); font-weight: 600; letter-spacing: .025em; color: var(--color-saffron-spark);
  padding-top: 6px;
}
.pains h3 { font-size: 27px; line-height: 1.15; margin-bottom: 8px; }
.pains p { color: var(--color-silver-mist); }

/* =========================================================
   14:02
   ========================================================= */
.versus { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 96px); margin-top: clamp(48px, 7vw, 96px); }
.vs-label { font-size: var(--text-nav-label); font-weight: 600; text-transform: uppercase; letter-spacing: .025em; color: var(--color-ash-gray); margin-bottom: 12px; }
.vs-new .vs-label { color: #fff; }
.vs-time { font-size: clamp(64px, 9vw, 113px); font-weight: 400; letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.vs-old .vs-time { color: var(--color-ash-gray); }
.vs-old.warn .vs-time { color: var(--color-saffron-spark); }
.vs-meter { height: 2px; background: var(--faint); margin: 30px 0 14px; position: relative; overflow: hidden; border-radius: 2px; }
.vs-meter i { position: absolute; inset: 0 auto 0 0; width: 0; background: var(--color-saffron-spark); }
.vs-new .vs-meter i { background: var(--color-electric-iris); width: 0; }
.vs-meta { display: flex; justify-content: space-between; font-size: var(--text-caption); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--color-ash-gray); }
.vs-meta b { font-weight: 600; color: #fff; font-variant-numeric: tabular-nums; }
.vs-old .vs-meta b { color: var(--color-saffron-spark); }
.vs-status { margin-top: 24px; font-size: 22px; line-height: 1.35; max-width: 440px; color: var(--color-silver-mist); }
.vs-new .vs-status { color: #fff; }
.vs-new .vs-time { color: #fff; }
.vs-new.cut .vs-time { color: var(--color-electric-iris); }

/* =========================================================
   FLOW
   ========================================================= */
.flow { display: grid; grid-template-columns: minmax(280px, 380px) 1fr; gap: clamp(36px, 5vw, 72px); align-items: center; }

.flow-steps { display: grid; gap: 6px; }
.flow-steps button {
  width: 100%; text-align: left; padding: 16px 0 18px;
  display: grid; grid-template-columns: 44px 1fr; column-gap: 8px; row-gap: 6px;
  color: var(--color-ash-gray); transition: color .3s;
}
.flow-steps .n { grid-row: 1; padding-top: 5px; color: var(--color-ash-gray); transition: color .3s; }
.flow-steps .t { font-size: var(--text-heading-2xs); font-weight: 400; letter-spacing: -0.02em; line-height: 1.25; }
.flow-steps .d {
  grid-column: 2; font-size: 16px; color: var(--color-silver-mist);
  max-height: 0; opacity: 0; overflow: hidden; transition: max-height .5s var(--ease-out), opacity .4s;
}
.flow-steps .prog { grid-column: 2; height: 1px; background: var(--faint); margin-top: 10px; overflow: hidden; }
.flow-steps .prog i { display: block; height: 100%; background: var(--color-electric-iris); transform-origin: left; transform: scaleX(0); }
.flow-steps button:hover { color: #fff; }
.flow-steps button.active { color: #fff; }
.flow-steps button.active .n { color: var(--color-saffron-spark); }
.flow-steps button.active .d { max-height: 120px; opacity: 1; }

.flow-stage { width: 100%; }
#flow-svg { width: 100%; height: auto; display: block; overflow: visible; }

.wire { fill: none; stroke: #2e2e2e; stroke-width: 1.5; stroke-dasharray: 3 7; transition: stroke .4s; }
.wire.on { stroke: var(--color-electric-iris); animation: dash 0.9s linear infinite; }
#r-adm.on { stroke: var(--color-saffron-spark); }
@keyframes dash { to { stroke-dashoffset: -20; } }

.node { fill: #000; stroke: #3a3a3a; stroke-width: 1.5; transition: stroke .4s; }
.node-gate { stroke: var(--color-electric-iris); }
.node-auth { stroke: var(--color-deep-verdant); stroke-width: 2; }
.node-adm { stroke: var(--color-saffron-spark); }
.svc.hit .node { stroke: var(--color-electric-iris); }
.ico { fill: none; stroke: #fff; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.ico-teal { stroke: #2fb898; }
.sig-ico { fill: none; stroke: var(--color-saffron-spark); stroke-width: 1.5; }

.lbl { font-family: var(--font); font-size: 21px; font-weight: 400; letter-spacing: -0.02em; fill: #fff; }
.cap { font-family: var(--font); font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; fill: var(--color-ash-gray); }
.amber-t { fill: var(--color-saffron-spark); }

.fx { opacity: 0; transition: opacity .35s; }
.fx.is-on { opacity: 1; }
.pkt { transition-duration: .18s; }

#pkt-badge rect { fill: #000; stroke: var(--color-electric-iris); stroke-width: 1.3; }
#pkt-badge text { font-family: var(--font); font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; fill: #fff; }

.mem-ring {
  fill: none; stroke: var(--color-saffron-spark); stroke-width: 1.5; stroke-dasharray: 2 9;
  transform-box: fill-box; transform-origin: center; animation: spin 14s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

#wave { fill: none; stroke: var(--color-saffron-spark); stroke-width: 1.5; opacity: 0; }

.node-g > .node, .node-g > rect.node { transform-box: fill-box; transform-origin: center; }
.node-g.ping > .node { animation: ping .6s var(--ease-out); }
@keyframes ping { 40% { transform: scale(1.1); stroke: #fff; } }

.flow-status { font-family: var(--font); font-size: 18px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; fill: var(--color-silver-mist); }
.flow-status.ok { fill: var(--color-electric-iris); }
.flow-status.amber { fill: var(--color-saffron-spark); }
.flow-status.bad { fill: var(--color-saffron-spark); }

.shard {
  fill: none; stroke: var(--color-saffron-spark); stroke-width: 1.3;
  transform-box: fill-box; transform-origin: center;
  animation: shard 1.3s var(--ease-out) forwards;
}
@keyframes shard {
  from { transform: translate(0, 0) rotate(0); opacity: 1; }
  to   { transform: translate(var(--dx), var(--dy)) rotate(var(--rot)); opacity: 0; }
}

/* =========================================================
   PLUG & PLAY
   ========================================================= */
.plug { margin-top: clamp(56px, 8vw, 110px); position: relative; }
.plug-line { position: relative; height: 1px; background: var(--faint); margin-bottom: 42px; }
.plug-fill { position: absolute; inset: 0 auto 0 0; width: 0; background: var(--color-electric-iris); transition: width 2.6s var(--ease-out); }
.plug-tri {
  position: absolute; top: -9px; left: 0; width: 18px; height: 18px; margin-left: -9px;
  transition: left 2.6s var(--ease-out);
}
.plug-tri::before {
  content: ""; position: absolute; inset: 0;
  background: var(--color-electric-iris);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}
.plug.in .plug-fill { width: 100%; }
.plug.in .plug-tri { left: 100%; }

.plug-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(30px, 4vw, 60px); }
.plug-steps li { opacity: .18; transform: translateY(18px); transition: opacity .8s, transform .8s var(--ease-out); }
.plug.in .plug-steps li { opacity: 1; transform: none; }
.plug.in .plug-steps li:nth-child(1) { transition-delay: .2s; }
.plug.in .plug-steps li:nth-child(2) { transition-delay: 1.0s; }
.plug.in .plug-steps li:nth-child(3) { transition-delay: 1.8s; }
.plug-steps .n { display: block; margin-bottom: 18px; }
.plug-steps h3 { font-size: clamp(27px, 2.6vw, 36px); line-height: 1.1; margin-bottom: 14px; }
.plug-steps p { color: var(--color-silver-mist); }

.envs { margin-top: clamp(56px, 8vw, 96px); font-size: clamp(20px, 2vw, 27px); font-weight: 400; letter-spacing: -0.02em; color: var(--color-ash-gray); }
.envs i { color: var(--color-electric-iris); font-style: normal; padding: 0 6px; }
.envs span { color: #fff; }

/* =========================================================
   GAINS
   ========================================================= */
.gains li {
  display: grid; grid-template-columns: 80px minmax(0, 1.1fr) minmax(0, 1fr); gap: 24px; align-items: baseline;
  padding: 30px 0; cursor: default;
}
.gains h3 {
  font-size: clamp(32px, 4vw, 48px); line-height: 1.1; position: relative;
  transition: transform .5s var(--ease-out), color .3s;
}
.gains h3::before {
  content: ""; position: absolute; left: -30px; top: 50%; width: 14px; height: 14px; margin-top: -7px;
  background: var(--color-electric-iris); clip-path: polygon(0 0, 100% 50%, 0 100%);
  opacity: 0; transform: translateX(-10px); transition: opacity .4s, transform .5s var(--ease-out);
}
.gains p { color: var(--color-ash-gray); transition: color .3s; }
.gains li:hover h3 { transform: translateX(30px); }
.gains li:hover h3::before { opacity: 1; transform: none; }
.gains li:hover p { color: #fff; }

/* =========================================================
   SESSION LIFE
   ========================================================= */
.life { padding-top: 12px; }
.life-head, .life-meta {
  display: flex; justify-content: space-between; gap: 18px;
  font-size: var(--text-caption); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--color-ash-gray);
}
.life-track { display: grid; grid-template-columns: repeat(10, 1fr); gap: 14px 10px; margin: 24px 0 18px; }
.life-track i {
  display: block; aspect-ratio: 1; position: relative;
  transition: transform .4s var(--ease-out), opacity .4s;
}
.life-track i::before, .life-track i::after {
  content: ""; position: absolute; inset: 0; clip-path: polygon(50% 6%, 96% 92%, 4% 92%);
}
.life-track i::before { background: #3a3a3a; transition: background .3s; }
.life-track i::after  { inset: 1.5px; background: #000; clip-path: polygon(50% 9%, 93% 90%, 7% 90%); }
.life-track i.past::before { background: var(--color-deep-verdant); }
.life-track i.now { transform: scale(1.18); }
.life-track i.now::before { background: var(--color-electric-iris); }
.life-track i.now::after { background: var(--color-electric-iris); }
.life-track i.ghost { transform: scale(1.3); animation: blink .35s steps(2) 4; }
.life-track i.ghost::before, .life-track i.ghost::after { background: var(--color-saffron-spark); }
.life-track i.dead { opacity: .18; }
@keyframes blink { 50% { opacity: .2; } }
.life-note { font-size: 15px; color: var(--color-ash-gray); margin-bottom: 30px; }
.life-key { color: #fff; }
.life-state { color: var(--color-electric-iris); text-align: right; }
.life-state.warn { color: var(--color-saffron-spark); }

/* =========================================================
   STATS
   ========================================================= */
.stats { padding-top: 0; }
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; }
.stat b { display: block; font-size: clamp(48px, 5.6vw, 78px); font-weight: 400; letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.stat small { font-size: .36em; color: var(--color-ash-gray); letter-spacing: -0.01em; margin-left: 6px; }
.stat span { display: block; margin-top: 14px; font-size: var(--text-nav-label); font-weight: 600; text-transform: uppercase; letter-spacing: .025em; color: var(--color-ash-gray); max-width: 220px; }

/* =========================================================
   SECURITY
   ========================================================= */
.sticky-col { position: sticky; top: 120px; }
.sec-list { counter-reset: sec; display: grid; gap: 42px; }
.sec-list li { counter-increment: sec; display: grid; grid-template-columns: 48px 1fr; }
.sec-list li::before {
  content: counter(sec, decimal-leading-zero);
  font-size: var(--text-nav-label); font-weight: 600; color: var(--color-saffron-spark); padding-top: 6px;
}
.sec-list h3 { font-size: 27px; line-height: 1.15; margin-bottom: 8px; }
.sec-list p { grid-column: 2; color: var(--color-silver-mist); }
.sec-list .kvkk h3 { color: var(--color-saffron-spark); }

/* =========================================================
   SECTORS
   ========================================================= */
.sectors { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(36px, 6vw, 96px); align-items: center; }
.sector-list button {
  display: inline-flex; align-items: center; gap: 18px;
  font-size: clamp(44px, 7vw, 96px); font-weight: 400; letter-spacing: -0.04em; line-height: 1.08;
  color: rgba(255, 255, 255, .16); transition: color .35s;
}
.sector-list button::after {
  content: ""; width: .28em; height: .28em;
  background: var(--color-saffron-spark); clip-path: polygon(0 50%, 100% 0, 100% 100%);
  opacity: 0; transform: translateX(20px); transition: opacity .35s, transform .45s var(--ease-out);
}
.sector-list button:hover { color: rgba(255, 255, 255, .5); }
.sector-list button.on { color: #fff; }
.sector-list button.on::after { opacity: 1; transform: none; }
.sector-detail { max-width: 460px; }
.sector-text { font-size: clamp(20px, 2vw, 27px); line-height: 1.35; transition: opacity .3s, transform .3s; }
.sector-detail.swap .sector-text, .sector-detail.swap .eyebrow { opacity: 0; transform: translateY(8px); }
.sector-detail .eyebrow { transition: opacity .3s, transform .3s; }

/* =========================================================
   FINAL
   ========================================================= */
.final { position: relative; padding: clamp(120px, 16vw, 220px) 0; overflow: hidden; }
.final-inner { position: relative; z-index: 1; }
.final .display { margin-bottom: 36px; }
.final-tris { position: absolute; inset: 0; pointer-events: none; }
.final-tris svg { position: absolute; fill: none; stroke-width: 1.2; animation: drift var(--d, 16s) ease-in-out infinite alternate; opacity: var(--o, .6); }
@keyframes drift {
  from { transform: translate(0, 0) rotate(0deg); }
  to   { transform: translate(var(--x, 20px), var(--y, -30px)) rotate(var(--r, 90deg)); }
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer { padding: 48px 0 60px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 30px; flex-wrap: wrap; }
.footer-links a, .footer-copy { font-size: var(--text-nav-label); font-weight: 400; color: var(--color-ash-gray); transition: color .2s; }
.footer-links a:hover { color: #fff; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .split, .versus, .sectors, .flow { grid-template-columns: 1fr; }
  .flow-stage { overflow-x: auto; margin: 0 calc(var(--gutter) * -1); padding: 0 var(--gutter); scrollbar-width: none; }
  .flow-stage::-webkit-scrollbar { display: none; }
  #flow-svg { min-width: 640px; }
  .gains li { grid-template-columns: 44px 1fr; row-gap: 8px; }
  .gains li p { grid-column: 2; }
  .gains li:hover h3 { transform: none; }
  .gains h3::before { display: none; }
  .stats-row { grid-template-columns: 1fr 1fr; row-gap: 60px; }
  .sticky-col { position: static; }
  .hero-copy { max-width: 100%; }
  #hero-canvas { opacity: .6; }
}

@media (max-width: 720px) {
  .plug-steps { grid-template-columns: 1fr; }
  .plug-line { display: none; }
  .plug-steps li { opacity: 1; transform: none; }
  .hero-legend { justify-content: flex-start; gap: 16px; }
  .hero { justify-content: flex-start; }
  #hero-canvas { opacity: .9; }
  .hero-inner { padding-top: 110px; padding-bottom: 380px; }
  .vs-status { font-size: 19px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .hero-title .w > span { transform: none; }
  .plug-steps li { opacity: 1; transform: none; }
}