/* ============ DRLSYS — base ============ */
:root{
  --bg: #01030c;
  --bg-alt: #060a16;
  --ink: #eef1f8;
  --ink-dim: #8b93a8;
  --ink-highlight: #ccd3e0;
  --line: #182036;
  --accent: #2461cd;      /* cinematic blue — primary brand color */
  --accent-bright: #539ae3;
  --accent-soft: rgba(36, 97, 205, 0.18);
  --accent-2: #539ae3;    /* icy blue — gradient partner */
  --accent-3: #ffb84d;    /* amber — utility color: rack status lights / placeholder notes only */
  --glass-fill: linear-gradient(135deg, rgba(255,255,255,0.10), rgba(36,97,205,0.10));
  --glass-border: rgba(204, 211, 224, 0.28);
  --font: "Segoe UI", "Inter", system-ui, -apple-system, sans-serif;
  --mono: "Consolas", "SFMono-Regular", Menlo, monospace;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}
h1,h2{ margin: 0; font-weight: 700; letter-spacing: -0.02em; }
p{ margin: 0; }
a{ color: inherit; text-decoration: none; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

/* ============ top progress rail ============ */
.progress-rail{
  position: fixed; top: 0; left: 0; width: 100%; height: 2px;
  background: rgba(255,255,255,0.04); z-index: 200;
}
.progress-rail__fill{
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 12px var(--accent);
}

/* ============ nav ============ */
.nav{
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 56px);
  transition: background .3s ease, border-color .3s ease, padding .3s ease;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled{
  background: rgba(6,6,8,0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  padding-top: 14px; padding-bottom: 14px;
}
.nav__logo{
  font-family: var(--mono); font-size: 1.1rem; letter-spacing: 0.04em; font-weight: 700;
}
.nav__logo span{ color: var(--accent); }
.nav__links{ display: flex; gap: 32px; }
.nav__links a{ font-size: 0.9rem; color: var(--ink-dim); transition: color .2s; }
.nav__links a:hover{ color: var(--ink); }
.nav__cta{
  font-size: 0.85rem; padding: 9px 18px; border: 1px solid var(--accent);
  border-radius: 999px; color: var(--accent);
  transition: background .2s, color .2s, box-shadow .2s;
}
.nav__cta:hover{ background: var(--accent); color: #01030c; box-shadow: 0 0 24px var(--accent-soft); }
@media (max-width: 720px){ .nav__links{ display:none; } }

/* ============ hero ============ */
.hero{
  min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 120px 20px 80px; position: relative; overflow: hidden;
}
.hero__beam{
  position: absolute; top: -10%; left: 50%; width: 640px; height: 140%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse 50% 45% at 50% 30%, var(--accent-soft) 0%, transparent 68%);
  filter: blur(10px);
  animation: beamPulse 7s ease-in-out infinite;
  pointer-events: none;
}
@keyframes beamPulse{ 0%,100%{ opacity: .75; } 50%{ opacity: 1; } }
.hero__grid{
  position: absolute; inset: -20%;
  background-image:
    linear-gradient(rgba(83,154,227,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(83,154,227,0.06) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 60% 55% at 50% 40%, #000 30%, transparent 75%);
  animation: gridDrift 24s linear infinite;
}
@keyframes gridDrift{ from{ transform: translate3d(0,0,0);} to{ transform: translate3d(46px,46px,0);} }
.glass-field{ position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.glass-shape{
  position: absolute; border-radius: 28px; background: var(--glass-fill);
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.25), 0 30px 60px -20px rgba(1,3,12,0.8), 0 0 60px -10px var(--accent-soft);
  backdrop-filter: blur(2px);
}
.glass-shape::before{
  content: ""; position: absolute; inset: 0; border-radius: inherit; opacity: 0.5;
  background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,0.35) 48%, transparent 62%);
}
.glass-shape--a{ width: 190px; height: 130px; top: 16%; left: 9%; animation: floatChip 8s ease-in-out infinite; }
.glass-shape--b{ width: 150px; height: 150px; top: 60%; left: 20%; border-radius: 50%; animation: floatB 11s ease-in-out infinite; }
.glass-shape--c{ width: 200px; height: 120px; top: 20%; right: 9%; animation: floatChip 9.5s ease-in-out infinite .4s; }
.glass-shape--d{ width: auto; height: auto; bottom: 15%; left: 10%; animation: floatChip 10.5s ease-in-out infinite .8s; }
.glass-ring{ position: absolute; bottom: 10%; right: 16%; opacity: 0.8; animation: floatB 13s ease-in-out infinite; }
@keyframes floatA{ 0%,100%{ transform: rotate(-14deg) translateY(0); } 50%{ transform: rotate(-10deg) translateY(-18px); } }
@keyframes floatB{ 0%,100%{ transform: translateY(0) scale(1); } 50%{ transform: translateY(14px) scale(1.03); } }
@keyframes floatC{ 0%,100%{ transform: rotate(10deg) translateY(0); } 50%{ transform: rotate(6deg) translateY(-14px); } }
@keyframes floatChip{ 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(-12px); } }

/* stat chips inside the hero glass field — filled with real content, not just decoration */
.stat-chip{
  display: flex; flex-direction: column; justify-content: center; align-items: flex-start;
  padding: 18px 22px; gap: 5px;
}
.stat-chip__num{ font-family: var(--mono); font-size: 1.6rem; font-weight: 700; color: var(--ink-highlight); letter-spacing: -0.01em; }
.stat-chip__label{ font-size: 0.78rem; color: var(--ink-dim); line-height: 1.3; max-width: 20ch; }
.stat-chip--pill{
  flex-direction: row; align-items: center; gap: 10px; padding: 11px 20px; border-radius: 999px;
}
.stat-chip--pill .stat-chip__label{ font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.05em; color: var(--ink-highlight); max-width: none; }
.stat-chip__dot{ width: 8px; height: 8px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 10px #4ade80; animation: pulse 2.4s ease-in-out infinite; }
@media (max-width: 860px){ .glass-field{ display: none; } }

.hero__eyebrow{
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.22em; color: var(--accent-bright);
  margin-bottom: 26px; position: relative; z-index: 2;
}
.hero__title{
  font-size: clamp(2.4rem, 6.4vw, 5rem); line-height: 1.05; max-width: 17ch; font-weight: 800;
  letter-spacing: -0.03em; position: relative; z-index: 2;
}
.hero__title em{
  font-style: normal;
  background: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__subtitle{
  margin-top: 24px; max-width: 46ch; color: var(--ink-dim); font-size: 1.08rem; line-height: 1.65;
  position: relative; z-index: 2;
}
.hero__scrollhint{
  margin-top: 60px; display: flex; flex-direction: column; align-items: center; gap: 10px;
  color: var(--ink-dim); font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase;
  animation: bob 2.4s ease-in-out infinite; position: relative; z-index: 2;
}
.hero__scrollhint svg{ color: var(--accent-bright); }
@keyframes bob{ 0%,100%{ transform: translateY(0);} 50%{ transform: translateY(8px);} }

/* ============ tech/platform strip ============ */
.stack-strip{
  padding: 40px 20px 46px; text-align: center; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: var(--bg-alt);
}
.stack-strip__label{
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.18em; color: var(--ink-dim); margin-bottom: 22px;
}
.stack-strip__label em{ font-style: normal; opacity: 0.6; }
.stack-strip__row{
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; max-width: 900px; margin: 0 auto;
}
.stack-strip__row button{
  font-family: var(--mono); font-size: 0.82rem; color: var(--ink-highlight); padding: 8px 16px;
  border: 1px solid var(--line); border-radius: 999px; background: rgba(83,154,227,0.04);
  transition: border-color .2s ease, color .2s ease, background .2s ease; cursor: pointer;
}
.stack-strip__row button:hover, .stack-strip__row button:focus-visible{
  border-color: var(--accent-bright); color: var(--accent-bright); background: rgba(83,154,227,0.1);
}

/* ============ tech explainer modal ============ */
.tech-modal{ position: fixed; inset: 0; z-index: 300; display: flex; align-items: center; justify-content: center;
  padding: 20px; opacity: 0; pointer-events: none; transition: opacity .25s ease; }
.tech-modal.is-open{ opacity: 1; pointer-events: auto; }
.tech-modal__backdrop{ position: absolute; inset: 0; background: rgba(1,3,12,0.72); backdrop-filter: blur(6px); }
.tech-modal__panel{
  position: relative; max-width: 460px; width: 100%; padding: 34px 32px; border-radius: 20px;
  background: #080b14; border: 1px solid rgba(83,154,227,0.22);
  box-shadow: 0 40px 80px -20px rgba(0,0,0,0.7), 0 0 60px -10px var(--accent-soft);
  transform: translateY(10px); transition: transform .25s ease;
}
.tech-modal.is-open .tech-modal__panel{ transform: translateY(0); }
.tech-modal__close{
  position: absolute; top: 16px; right: 16px; width: 32px; height: 32px; border-radius: 50%;
  border: 1px solid var(--line); background: none; color: var(--ink-dim); font-size: 1.3rem; line-height: 1;
  cursor: pointer; transition: color .2s ease, border-color .2s ease;
}
.tech-modal__close:hover{ color: var(--accent-bright); border-color: var(--accent-bright); }
.tech-modal__eyebrow{ font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.18em; color: var(--accent-bright); }
.tech-modal__panel h3{ font-size: 1.5rem; margin: 12px 0 16px; font-weight: 700; letter-spacing: -0.01em; }
.tech-modal__panel p{ color: var(--ink-dim); line-height: 1.65; font-size: 0.98rem; margin: 0; }

/* ============ HUD (scrub scene overlay) ============ */
.hud{
  position: absolute; top: clamp(90px, 12vh, 130px); left: 50%; transform: translateX(-50%); z-index: 5;
  display: flex; gap: 26px; align-items: center; flex-wrap: wrap; justify-content: center;
  padding: 10px 22px; border-radius: 999px; background: rgba(6,8,14,0.5); backdrop-filter: blur(10px);
  border: 1px solid rgba(83,154,227,0.2);
}
.hud__status{
  display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 0.72rem;
  letter-spacing: 0.1em; color: var(--ink-highlight);
}
.hud__blink{ width: 7px; height: 7px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 8px #4ade80; animation: pulse 2.2s ease-in-out infinite; }
.hud__metric{ font-family: var(--mono); font-size: 0.72rem; color: var(--ink-dim); letter-spacing: 0.05em; }
.hud__metric strong{ color: var(--accent-bright); font-weight: 700; }
@media (max-width: 720px){ .hud{ display: none; } }

/* ============ scrub scene ============ */
.scrub{ position: relative; height: 420vh; }
.scrub__stage{
  position: sticky; top: 0; height: 100vh; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse 70% 60% at 50% 45%, #100a1c 0%, #060608 70%);
}
.scrub__stage::before{
  content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: radial-gradient(ellipse 30% 60% at 50% 50%, var(--accent-soft) 0%, transparent 70%);
  mix-blend-mode: screen;
}
.photo-stack{ position: absolute; inset: 0; z-index: 1; }
.photo-layer{
  position: absolute; inset: 0; background-size: cover; background-position: 50% 50%;
  opacity: 0; transform: scale(1.06); filter: grayscale(0.25) saturate(0.9) brightness(0.62) contrast(1.08);
  transition: opacity 1.1s ease, transform 6s ease-out, filter 1.1s ease;
}
.photo-layer.is-active{ opacity: 1; transform: scale(1.14); filter: grayscale(0.1) saturate(1) brightness(0.72) contrast(1.1); z-index: 1; }
.photo-stack__grade{
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background:
    linear-gradient(180deg, rgba(1,3,12,0.55) 0%, rgba(1,3,12,0.15) 35%, rgba(1,3,12,0.35) 70%, rgba(1,3,12,0.85) 100%),
    linear-gradient(90deg, rgba(1,3,12,0.75) 0%, transparent 30%, transparent 70%, rgba(1,3,12,0.75) 100%);
}
.photo-stack__grade::before{
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(36,97,205,0.28), rgba(1,3,12,0) 45%, rgba(83,154,227,0.16) 100%);
  mix-blend-mode: color;
}
.photo-stack__vignette{
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  box-shadow: inset 0 0 180px 40px rgba(1,3,12,0.85);
}

.scrub__viewfinder{ position: absolute; inset: 6%; pointer-events: none; z-index: 3; }
.vf-corner{ position: absolute; width: 26px; height: 26px; border: 1.5px solid rgba(83,154,227,0.45); }
.vf-corner--tl{ top:0; left:0; border-right:none; border-bottom:none; }
.vf-corner--tr{ top:0; right:0; border-left:none; border-bottom:none; }
.vf-corner--bl{ bottom:0; left:0; border-right:none; border-top:none; }
.vf-corner--br{ bottom:0; right:0; border-left:none; border-top:none; }

.scrub__panels{ position: absolute; inset: 0; z-index: 4; pointer-events: none; }
.panel{
  position: absolute; top: 50%; left: clamp(20px, 8vw, 90px); transform: translateY(-50%);
  max-width: 420px; opacity: 0; transition: opacity .4s ease, transform .4s ease;
  padding: 28px 30px; border-radius: 18px;
  background: rgba(12,10,20,0.55); backdrop-filter: blur(16px);
  border: 1px solid rgba(83,154,227,0.18);
}
.panel.is-active{ opacity: 1; transform: translateY(-50%) translateX(0); }
.panel:not(.is-active){ transform: translateY(-50%) translateX(-14px); }
.panel__icon{
  display: flex; align-items: center; justify-content: center; width: 40px; height: 40px;
  border-radius: 11px; color: var(--accent-bright); background: rgba(83,154,227,0.1);
  border: 1px solid rgba(83,154,227,0.25); margin-bottom: 16px;
}
.panel__icon svg{ width: 20px; height: 20px; }
.panel__index{
  font-family: var(--mono); color: var(--accent-bright); font-size: 0.85rem; letter-spacing: 0.14em;
}
.panel__index em{ font-style: normal; color: var(--ink-dim); }
.panel h2{ font-size: clamp(1.4rem, 2.6vw, 2rem); margin: 12px 0 14px; font-weight: 700; letter-spacing: -0.02em; }
.panel p{ color: var(--ink-dim); line-height: 1.6; font-size: 1rem; }
.panel__list{
  list-style: none; margin: 18px 0 0; padding: 16px 0 0; display: flex; flex-direction: column; gap: 9px;
  border-top: 1px solid rgba(83,154,227,0.15);
}
.panel__list li{
  position: relative; padding-left: 18px; color: var(--ink-dim); font-size: 0.92rem; line-height: 1.45;
}
.panel__list li::before{
  content: ""; position: absolute; left: 0; top: 0.55em; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-bright); box-shadow: 0 0 8px var(--accent-bright);
}
@media (max-width: 860px){
  .panel{ left: 20px; right: 20px; max-width: none; }
}

.scrub__gallery{
  position: absolute; right: clamp(20px, 6vw, 80px); top: 50%; transform: translateY(-50%);
  z-index: 4; display: flex; flex-direction: column; align-items: flex-end; gap: 14px;
}
.scrub__gallery-label{
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.2em; color: var(--ink-dim);
}
.gallery-frame{
  position: relative; width: clamp(200px, 18vw, 280px); height: clamp(260px, 24vw, 360px);
  border-radius: 20px; overflow: hidden; border: 1px solid var(--glass-border);
  box-shadow: 0 30px 60px -20px rgba(1,3,12,0.8), inset 0 1px 1px rgba(255,255,255,0.15), 0 0 50px -10px var(--accent-soft);
}
.gallery-frame__img{
  position: absolute; inset: 0; background-size: cover; background-position: 50% 50%;
  opacity: 0; transform: scale(1.08); filter: saturate(0.9) brightness(0.85) contrast(1.05);
  transition: opacity .8s ease, transform 5s ease-out;
}
.gallery-frame__img.is-active{ opacity: 1; transform: scale(1); }
.gallery-frame__glare{
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(160deg, rgba(255,255,255,0.16) 0%, transparent 30%, transparent 70%, rgba(1,3,12,0.55) 100%);
}
@media (max-width: 1180px){ .scrub__gallery{ display: none; } }

.scrub__cue{
  position: absolute; left: 50%; bottom: 34px; transform: translateX(-50%); z-index: 5;
  display: flex; flex-direction: column; align-items: center; gap: 10px; pointer-events: none;
  color: var(--ink-dim); transition: opacity .4s ease;
}
.scrub__cue.is-hidden{ opacity: 0; }
.scrub__cue-text{ font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; }
.scrub__cue svg{ color: var(--accent-bright); animation: bob 2.2s ease-in-out infinite; }
.scrub__dots{ display: flex; gap: 8px; margin-bottom: 4px; }
.dot{ width: 6px; height: 6px; border-radius: 50%; background: rgba(139,153,181,0.35); transition: background .3s ease, transform .3s ease; }
.dot.is-active{ background: var(--accent-bright); transform: scale(1.5); box-shadow: 0 0 8px var(--accent-bright); }

/* ============ process ============ */
.process{ padding: 150px 20px 130px; position: relative; }
.process__inner{ max-width: 1080px; margin: 0 auto; }
.process h2{ font-size: clamp(1.8rem, 4vw, 2.9rem); line-height: 1.2; max-width: 20ch; font-weight: 800; letter-spacing: -0.025em; }
.process__steps{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
.process__step{
  padding: 30px 28px; border-radius: 18px; background: rgba(83,154,227,0.05);
  border: 1px solid rgba(83,154,227,0.15); position: relative; overflow: hidden;
}
.process__step::before{
  content: ""; position: absolute; top: -40%; right: -30%; width: 60%; height: 80%;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 70%); pointer-events: none;
}
.process__num{
  font-family: var(--mono); font-size: 0.85rem; color: var(--accent-bright); letter-spacing: 0.1em;
  display: inline-block; padding: 5px 11px; border-radius: 999px; border: 1px solid rgba(83,154,227,0.3);
}
.process__step h3{ font-size: 1.25rem; margin: 20px 0 10px; font-weight: 700; letter-spacing: -0.01em; }
.process__step p{ color: var(--ink-dim); line-height: 1.6; font-size: 0.96rem; margin: 0; }
@media (max-width: 860px){
  .process__steps{ grid-template-columns: 1fr; }
}

/* ============ about ============ */
.about{ padding: 170px 20px; background: var(--bg-alt); border-top: 1px solid var(--line); position: relative; overflow: hidden; }
.about__inner{ max-width: 760px; margin: 0 auto; position: relative; }
.section-eyebrow{
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.2em; color: var(--accent-2);
  margin-bottom: 20px;
}
.about h2{ font-size: clamp(1.8rem, 4vw, 2.9rem); line-height: 1.2; max-width: 19ch; font-weight: 800; letter-spacing: -0.025em; }
.about__text{ margin-top: 26px; color: var(--ink-dim); font-size: 1.08rem; line-height: 1.78; max-width: 60ch; }
.about__stats{ display: flex; gap: 48px; margin-top: 52px; flex-wrap: wrap; }
.about__stats strong{ display: block; font-size: 2.1rem; font-family: var(--mono); color: var(--accent); font-weight: 700; }
.about__stats span{ color: var(--ink-dim); font-size: 0.85rem; }
.about__note{ margin-top: 18px; color: var(--ink-dim); opacity: 0.55; font-size: 0.78rem; }

/* ============ contact ============ */
.contact{ padding: 170px 20px; text-align: center; position: relative; overflow: hidden; }
.contact::before{
  content: ""; position: absolute; top: 50%; left: 50%; width: 700px; height: 500px;
  transform: translate(-50%,-50%);
  background: radial-gradient(ellipse 50% 50% at 50% 50%, var(--accent-soft) 0%, transparent 70%);
  pointer-events: none;
}
.contact__inner{ max-width: 640px; margin: 0 auto; position: relative; }
.contact h2{ font-size: clamp(1.8rem, 4vw, 2.9rem); margin-top: 20px; font-weight: 800; letter-spacing: -0.025em; }
.contact__text{ margin-top: 20px; color: var(--ink-dim); font-size: 1.08rem; line-height: 1.7; }
.contact__cta{
  display: inline-block; margin-top: 42px; padding: 17px 36px; border-radius: 999px;
  background: linear-gradient(100deg, var(--accent), var(--accent-2)); color: #01030c; font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease;
}
.contact__cta:hover{ transform: translateY(-2px); box-shadow: 0 16px 40px var(--accent-soft); }
.contact__meta{ margin-top: 30px; display: flex; justify-content: center; gap: 28px; flex-wrap: wrap; color: var(--ink-dim); font-size: 0.9rem; }
.contact__meta em{ color: var(--accent-3); font-style: normal; font-size: 0.75rem; opacity: 0.85; }

/* ============ footer ============ */
.footer{
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  padding: 28px clamp(20px, 5vw, 56px); border-top: 1px solid var(--line);
  color: var(--ink-dim); font-size: 0.82rem;
}