/* =========================================================
   DisplayGenic — Blueprint / Engineered Digital Signage
   ========================================================= */

:root {
  /* Brand */
  --blue:        #1072b4;
  --blue-dark:   #0a5a96;
  --blue-light:  #2a93d6;
  --cyan:        #00d4ff;

  /* Surfaces (cool, near-black navy) */
  --bg:          #04101a;
  --bg-1:        #061726;
  --bg-2:        #081f33;
  --ink:         #eaf2f8;
  --mute:        rgba(234, 242, 248, 0.55);
  --faint:       rgba(234, 242, 248, 0.30);

  /* Blueprint lines */
  --line:        rgba(0, 212, 255, 0.22);
  --line-soft:   rgba(0, 212, 255, 0.10);
  --grid:        rgba(0, 212, 255, 0.045);
  --hair:        rgba(234, 242, 248, 0.10);

  /* Type */
  --sans:  'Barlow', system-ui, sans-serif;
  --cond:  'Barlow Condensed', 'Barlow', sans-serif;
  --mono:  'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;

  --accent: var(--cyan);          /* tweakable */
  --grid-size: 28px;              /* tweakable */
}

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

html { scroll-behavior: auto; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

/* ---- Mono label utility ---- */
.mono {
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}
.mono.dim { color: var(--faint); }
.tick::before { content: '+'; margin-right: 0.6em; color: var(--accent); opacity: 0.7; }

/* =========================================================
   NAV
   ========================================================= */
nav {
  position: fixed; inset: 0 0 auto 0; z-index: 120;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 2.4rem;
  background: linear-gradient(180deg, rgba(4,16,26,0.92), rgba(4,16,26,0));
  backdrop-filter: blur(6px);
  transition: background 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
nav.solid {
  background: rgba(4,16,26,0.9);
  border-bottom: 1px solid var(--hair);
}
.nav-logo { height: 30px; display: block; }
.nav-links { display: flex; gap: 2.2rem; list-style: none; flex-wrap: nowrap; }
.nav-links a {
  font-family: var(--cond);
  font-size: 0.98rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--mute); text-decoration: none; transition: color 0.2s; white-space: nowrap;
}
.nav-links a:hover { color: var(--accent); }
.nav-cta {
  font-family: var(--mono);
  font-size: 0.7rem; font-weight: 500; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink); text-decoration: none;
  padding: 0.65rem 1.4rem;
  border: 1px solid var(--line);
  position: relative; transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.nav-cta:hover { border-color: var(--accent); color: var(--bg); background: var(--accent); }
.hamburger { display: none; }

/* =========================================================
   CINEMATIC SCROLL TRACK
   ========================================================= */
#cinematic {
  position: relative;
  height: 400vh;        /* scroll length of the sequence */
}
.stage {
  position: sticky; top: 0;
  height: 100vh; width: 100%;
  overflow: hidden;
  perspective: 1400px;
  background:
    radial-gradient(120% 90% at 50% 38%, var(--bg-1) 0%, var(--bg) 62%);
}
/* ambient blueprint grid that drifts */
.stage-grid {
  position: absolute; inset: -20%;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  will-change: transform; pointer-events: none;
}
.stage-vignette {
  position: absolute; inset: 0; pointer-events: none; z-index: 60;
  background: radial-gradient(110% 110% at 50% 50%, transparent 55%, rgba(2,8,14,0.85) 100%);
}

/* shared centering for animated layers */
.layer {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  will-change: transform, opacity;
  transform-style: preserve-3d;
}

/* ---------- LAYER 1 : DEVICE (signage screen) ---------- */
.device {
  width: min(58vw, 880px);
  aspect-ratio: 16 / 9;
  position: relative;
  border-radius: 6px;
  padding: 14px;
  background: linear-gradient(160deg, #11181f, #05080b);
  box-shadow:
    0 40px 120px rgba(0,0,0,0.6),
    inset 0 0 0 1px rgba(255,255,255,0.04);
}
.device::after { /* bezel sheen */
  content: ''; position: absolute; inset: 0; border-radius: 6px;
  background: linear-gradient(120deg, rgba(255,255,255,0.06), transparent 40%);
  pointer-events: none;
}
.screen {
  position: absolute; inset: 14px; border-radius: 2px; overflow: hidden;
  background: linear-gradient(140deg, #06283f, #0a3a60 60%, #1072b4);
}
.screen-frame {
  position: absolute; inset: 0; opacity: 0; transition: opacity 0.8s ease;
  display: flex; flex-direction: column; justify-content: center;
  padding: 8% 9%;
}
.screen-frame.active { opacity: 1; }
.screen-kicker {
  font-family: var(--mono); font-size: 0.8vw; letter-spacing: 0.3em;
  text-transform: uppercase; color: rgba(255,255,255,0.7); margin-bottom: 1.2vw;
}
.screen-headline {
  font-family: var(--cond); font-weight: 900; text-transform: uppercase;
  font-size: 4.4vw; line-height: 0.92; color: #fff;
}
.screen-headline em { font-style: normal; color: var(--cyan); }
.screen-sub { font-size: 1.1vw; color: rgba(255,255,255,0.8); margin-top: 1.2vw; font-weight: 300; }
/* promo frame */
.screen-frame.promo { background: linear-gradient(135deg, #0a5a96, #04101a); }
.screen-frame.promo .screen-headline { font-size: 5vw; }
.promo-row { display: flex; gap: 0.8vw; margin-top: 1.4vw; }
.promo-tag {
  font-family: var(--mono); font-size: 0.75vw; letter-spacing: 0.2em;
  border: 1px solid rgba(255,255,255,0.35); padding: 0.4vw 0.8vw; color: #fff;
}
/* menu frame */
.screen-frame.menu { background: linear-gradient(135deg, #061726, #0a3a60); }
.menu-line { display: flex; justify-content: space-between; align-items: baseline;
  border-bottom: 1px dashed rgba(255,255,255,0.18); padding: 0.7vw 0; }
.menu-line span:first-child { font-family: var(--cond); font-weight: 700; font-size: 1.7vw; text-transform: uppercase; color:#fff; }
.menu-line span:last-child { font-family: var(--mono); font-size: 1.2vw; color: var(--cyan); }
/* live dot */
.screen-live {
  position: absolute; top: 6%; right: 7%; display: flex; align-items: center; gap: 0.5vw;
  font-family: var(--mono); font-size: 0.7vw; letter-spacing: 0.2em; color: rgba(255,255,255,0.8);
}
.screen-live i { width: 0.6vw; height: 0.6vw; border-radius: 50%; background: #ff4d4d; animation: blink 1.6s infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.25} }

/* device callout labels */
.device-tag {
  position: absolute; font-family: var(--mono); font-size: 0.62rem;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--mute);
  white-space: nowrap; pointer-events: none;
}
.device-tag::before { content:''; position:absolute; background: var(--line); }
.device-tag.tl { top: -8%; left: 0; }
.device-tag.br { bottom: -8%; right: 0; text-align: right; }

/* ---------- LAYER 2 : X-RAY exploded view ---------- */
.xray {
  width: min(70vw, 1100px);
  aspect-ratio: 16 / 9;
  position: relative;
  opacity: 0;
}
.xray-layer {
  position: absolute; inset: 0;
  border: 1px solid rgba(0, 212, 255, 0.5);
  background: rgba(0, 212, 255, 0.03);
  border-radius: 4px;
  box-shadow: inset 0 0 40px rgba(0,212,255,0.06);
}
.xray-layer::after {
  content: attr(data-label);
  position: absolute; left: 10px; top: 8px;
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--accent); opacity: 0.95;
}
/* connector ticks at each layer corner */
.xray-layer::before {
  content: ''; position: absolute; right: 10px; bottom: 10px;
  width: 18px; height: 18px;
  border-right: 1px solid var(--accent); border-bottom: 1px solid var(--accent); opacity: 0.6;
}
/* scanline sweep */
.xray-scan {
  position: absolute; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  box-shadow: 0 0 18px 2px rgba(0,212,255,0.5);
  animation: scan 3.2s linear infinite;
}
@keyframes scan { 0%{top:4%} 100%{top:96%} }
/* dimension crosshair */
.xray-cross { position: absolute; width: 14px; height: 14px; pointer-events:none; }
.xray-cross::before, .xray-cross::after { content:''; position:absolute; background: var(--accent); opacity:0.8; }
.xray-cross::before { left:50%; top:0; width:1px; height:100%; transform:translateX(-0.5px); }
.xray-cross::after { top:50%; left:0; height:1px; width:100%; transform:translateY(-0.5px); }
.xray-spec {
  position: absolute; font-family: var(--mono); font-size: 0.6rem;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--mute); white-space: nowrap;
}

/* ---------- LAYER 3 : RECEIVER CARD (PCB + chip) ---------- */
.card-layer { opacity: 0; }
.pcb {
  width: min(46vw, 620px);
  aspect-ratio: 5 / 3.4;
  position: relative; border-radius: 10px;
  background:
    linear-gradient(150deg, #07212a, #04141c);
  border: 1px solid rgba(0,212,255,0.28);
  box-shadow: 0 40px 130px rgba(0,0,0,0.6), inset 0 0 60px rgba(0,212,255,0.05);
  overflow: hidden;
}
/* trace grid drawn with repeating gradients */
.pcb-traces {
  position: absolute; inset: 0; opacity: 0.5;
  background-image:
    linear-gradient(0deg, transparent 0 11px, var(--line-soft) 11px 12px),
    linear-gradient(90deg, transparent 0 11px, var(--line-soft) 11px 12px);
  background-size: 24px 24px;
  mask-image: radial-gradient(120% 120% at 30% 30%, #000 30%, transparent 75%);
}
.pcb-pads { position: absolute; inset: 0; }
.pad {
  position: absolute; width: 8px; height: 8px; border-radius: 50%;
  border: 1px solid var(--line); background: rgba(0,212,255,0.06);
}
.pad.lit { background: var(--accent); box-shadow: 0 0 10px var(--accent); border-color: var(--accent); }
/* corner mounting holes */
.mount { position: absolute; width: 16px; height: 16px; border-radius: 50%;
  border: 1px solid var(--line); background: var(--bg); }
.mount.tl{ top:14px; left:14px } .mount.tr{ top:14px; right:14px }
.mount.bl{ bottom:14px; left:14px } .mount.br{ bottom:14px; right:14px }

/* central chip */
.chip {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 42%; aspect-ratio: 1.7/1; border-radius: 6px;
  background: linear-gradient(150deg, #0c1116, #05080b);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 10px 40px rgba(0,0,0,0.5), inset 0 0 0 1px rgba(0,212,255,0.12);
  display: flex; align-items: center; justify-content: center;
}
.chip img { width: 64%; opacity: 0.95; }
.chip-pins { position: absolute; display: flex; gap: 4px; }
.chip-pins i { width: 5px; height: 9px; background: linear-gradient(#cfe9f5,#6f93a6); border-radius: 1px; }
.chip-pins.top { top: -9px; left: 50%; transform: translateX(-50%); }
.chip-pins.bottom { bottom: -9px; left: 50%; transform: translateX(-50%); }
.chip-pins.left { left: -9px; top: 50%; transform: translateY(-50%) rotate(90deg); }
.chip-pins.right { right: -9px; top: 50%; transform: translateY(-50%) rotate(90deg); }

/* card meta labels */
.pcb-label {
  position: absolute; font-family: var(--mono); font-size: 0.62rem;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--mute);
}
.pcb-label.id { top: 16px; right: 18px; color: var(--accent); }
.pcb-label.rev { bottom: 16px; left: 18px; }
.pcb-label.net { bottom: 16px; right: 18px; }

/* ---------- LAYER 4 : CLIMAX HEADLINE ---------- */
.climax { opacity: 0; z-index: 70; flex-direction: column; text-align: center; padding: 0 6vw; }
.climax .mono { margin-bottom: 1.4rem; }
.climax h2 {
  font-family: var(--cond); font-weight: 900; text-transform: uppercase;
  font-size: clamp(2.4rem, 5.8vw, 6rem); line-height: 0.9; letter-spacing: -0.01em; width: 100%;
}
.climax h2 .l1, .climax h2 em { display: block; white-space: nowrap; }
.climax h2 em { font-style: normal; color: var(--accent); }
.climax p { margin-top: 1.8rem; color: var(--ink); opacity: 0.7; max-width: 44ch; font-weight: 300; font-size: 1.05rem; }

/* ---------- HUD : phase scrubber + scroll hint ---------- */
.hud-phase {
  position: absolute; right: 2.4rem; top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; gap: 1.1rem; z-index: 80; pointer-events: none;
}
.hud-phase .ph { display: flex; align-items: center; gap: 0.7rem;
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--faint); transition: color 0.3s; pointer-events: auto; cursor: pointer; }
.hud-phase .ph:hover { color: var(--accent); }
.hud-phase .ph:hover i { background: var(--accent); width: 34px; }
.hud-phase .ph i { width: 22px; height: 1px; background: var(--faint); transition: background 0.3s, width 0.3s; }
.hud-phase .ph.on { color: var(--accent); }
.hud-phase .ph.on i { background: var(--accent); width: 40px; }

.hud-readout {
  position: absolute; left: 2.4rem; bottom: 2.2rem; z-index: 80; pointer-events: none;
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.16em; color: var(--mute);
  display: flex; flex-direction: column; gap: 0.35rem;
}
.hud-readout b { color: var(--accent); font-weight: 500; }

.scroll-hint {
  position: absolute; left: 50%; bottom: 2.2rem; transform: translateX(-50%);
  z-index: 80; display: flex; flex-direction: column; align-items: center; gap: 0.6rem;
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--mute); transition: opacity 0.4s;
}
.scroll-hint .bar { width: 1px; height: 38px; background: linear-gradient(var(--accent), transparent); animation: drop 1.8s ease-in-out infinite; }
@keyframes drop { 0%{transform: scaleY(0); transform-origin: top} 50%{transform: scaleY(1); transform-origin: top} 51%{transform-origin: bottom} 100%{transform: scaleY(0); transform-origin: bottom} }

/* =========================================================
   CONTENT SECTIONS
   ========================================================= */
.section { padding: 7rem 2.4rem; position: relative; }
.wrap { max-width: 1200px; margin: 0 auto; }

.sec-head { display: flex; align-items: flex-end; justify-content: space-between;
  gap: 2rem; margin-bottom: 3.5rem; flex-wrap: wrap; border-bottom: 1px solid var(--hair); padding-bottom: 1.6rem; }
.sec-index { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.22em; color: var(--accent); }
.sec-title { font-family: var(--cond); font-weight: 900; text-transform: uppercase;
  font-size: clamp(2.4rem, 5vw, 4rem); line-height: 0.95; }
.sec-sub { color: var(--mute); font-weight: 300; max-width: 46ch; font-size: 1.02rem; line-height: 1.7; }

/* Statement */
#statement { background: var(--bg); padding-top: 9rem; }
.statement-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.statement-grid h2 { font-family: var(--cond); font-weight: 900; text-transform: uppercase;
  font-size: clamp(2.6rem, 6vw, 5rem); line-height: 0.92; }
.statement-grid h2 em { font-style: normal; color: var(--accent); }
.statement-grid p { color: var(--mute); font-weight: 300; font-size: 1.1rem; line-height: 1.8; margin-bottom: 1.4rem; }
.statement-grid .tag { display:inline-block; font-family: var(--mono); font-size:0.62rem; letter-spacing:0.2em;
  text-transform:uppercase; color: var(--accent); border:1px solid var(--line); padding:0.4rem 0.8rem; }

/* Stats */
#stats { background: var(--blue); padding: 3.2rem 2.4rem; }
.stats-row { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.stat { border-left: 1px solid rgba(255,255,255,0.25); padding-left: 1.4rem; }
.stat .n { font-family: var(--cond); font-weight: 900; font-size: 3.2rem; line-height: 1; }
.stat .l { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: rgba(255,255,255,0.8); margin-top: 0.5rem; }

/* Solutions */
#solutions { background: var(--bg-1); }
.sol-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--hair); border-left: 1px solid var(--hair); }
.sol { padding: 2.4rem; border-right: 1px solid var(--hair); border-bottom: 1px solid var(--hair);
  position: relative; transition: background 0.3s; }
.sol:hover { background: rgba(0,212,255,0.04); }
.sol-num { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.2em; color: var(--accent); }
.sol h3 { font-family: var(--cond); font-weight: 800; text-transform: uppercase; font-size: 1.6rem;
  margin: 1rem 0 0.7rem; letter-spacing: 0.02em; }
.sol p { color: var(--mute); font-weight: 300; line-height: 1.7; font-size: 0.96rem; }
.sol::after { content:''; position:absolute; left:0; top:0; width:2px; height:100%;
  background: var(--accent); transform: scaleY(0); transform-origin: top; transition: transform 0.35s; }
.sol:hover::after { transform: scaleY(1); }

/* How */
#how { background: var(--bg); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--hair); }
.step { padding: 2.2rem 1.6rem 2.4rem 0; border-top: 2px solid var(--line); margin-top: -1px; position: relative; }
.step:not(:last-child) { padding-right: 2rem; }
.step .n { font-family: var(--cond); font-weight: 900; font-size: 3.4rem; line-height: 1; color: rgba(0,212,255,0.25); }
.step h3 { font-family: var(--cond); font-weight: 800; text-transform: uppercase; font-size: 1.3rem; line-height: 1.05; text-wrap: balance; margin: 0.8rem 0 0.6rem; }
.step p { color: var(--mute); font-weight: 300; line-height: 1.7; font-size: 0.92rem; }

/* Industries */
#industries { background: var(--bg-1); }
.ind-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--hair); border-left: 1px solid var(--hair); }
.ind { padding: 2.6rem 1.8rem; border-right: 1px solid var(--hair); border-bottom: 1px solid var(--hair);
  display: flex; flex-direction: column; gap: 0.8rem; transition: background 0.3s; min-height: 150px; }
.ind:hover { background: rgba(0,212,255,0.05); }
.ind .ix { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.2em; color: var(--accent); }
.ind .name { font-family: var(--cond); font-weight: 700; text-transform: uppercase; font-size: 1.5rem; line-height: 1; margin-top: auto; }

/* Contact band */
#contact { background: linear-gradient(120deg, var(--blue-dark), var(--blue)); text-align: center; overflow: hidden; position: relative; padding: 6rem 2.4rem; }
#contact::before { content:'DISPLAYGENIC'; position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  font-family: var(--cond); font-weight:900; font-size: 18vw; color: rgba(255,255,255,0.05); white-space:nowrap; pointer-events:none; letter-spacing: 0.05em; }
#contact .inner { position: relative; z-index: 2; }
#contact h2 { font-family: var(--cond); font-weight: 900; text-transform: uppercase; font-size: clamp(2.6rem,6vw,5rem); line-height: 0.92; }
#contact p { color: rgba(255,255,255,0.85); font-weight: 300; max-width: 46ch; margin: 1.2rem auto 2.4rem; font-size: 1.08rem; }
.btn {
  font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.18em; text-transform: uppercase;
  text-decoration: none; padding: 1rem 2.2rem; display: inline-flex; align-items: center; gap: 0.7rem;
  border: 1px solid rgba(255,255,255,0.6); color: #fff; transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn:hover { background: #fff; color: var(--blue); border-color: #fff; }
.btn.solid { background: var(--bg); border-color: var(--bg); }
.btn.solid:hover { background: var(--cyan); border-color: var(--cyan); color: var(--bg); }

/* Contact form */
.contact-form { position: relative; z-index: 2; max-width: 680px; margin: 2.6rem auto 0; text-align: left; }
.cf-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem 1.6rem; }
.cf-field { display: flex; flex-direction: column; gap: 0.5rem; }
.cf-field.full { grid-column: 1 / -1; }
.cf-field label { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.2em; text-transform: uppercase; color: rgba(255,255,255,0.7); }
.cf-field input, .cf-field textarea {
  font-family: var(--sans); font-size: 1rem; color: #fff;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.22);
  border-radius: 0; padding: 0.85rem 1rem; width: 100%; transition: border-color 0.2s, background 0.2s;
}
.cf-field textarea { resize: vertical; min-height: 130px; }
.cf-field input::placeholder, .cf-field textarea::placeholder { color: rgba(255,255,255,0.4); }
.cf-field input:focus, .cf-field textarea:focus { outline: none; border-color: #fff; background: rgba(255,255,255,0.12); }
.cf-actions { display: flex; align-items: center; gap: 1.4rem; margin-top: 1.8rem; flex-wrap: wrap; }
.cf-note { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.12em; color: rgba(255,255,255,0.55); max-width: 34ch; line-height: 1.6; }
.btn.cf-submit { cursor: pointer; font-size: 0.78rem; }

/* =========================================================
   FOOTER
   ========================================================= */
footer { background: #02080d; padding: 4.5rem 2.4rem 2.2rem; }
.foot-top { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem; padding-bottom: 3rem; border-bottom: 1px solid var(--hair); }
.foot-brand img { height: 28px; margin-bottom: 1.2rem; }
.foot-brand p { color: rgba(234,242,248,0.62); font-weight: 300; line-height: 1.7; max-width: 30ch; font-size: 0.95rem; }
.foot-col h4 { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent); margin-bottom: 1.1rem; }
.foot-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.7rem; }
.foot-col a { color: rgba(234,242,248,0.62); text-decoration: none; font-weight: 300; font-size: 0.95rem; transition: color 0.2s; cursor: pointer; }
.foot-col a:hover { color: var(--ink); }
.foot-bottom { max-width: 1200px; margin: 0 auto; padding-top: 1.8rem; display: flex; justify-content: space-between;
  flex-wrap: wrap; gap: 0.8rem; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.1em; color: rgba(234,242,248,0.6); }
.foot-bottom a { color: var(--accent); text-decoration: none; }

/* =========================================================
   MODALS
   ========================================================= */
.modal-overlay { position: fixed; inset: 0; z-index: 300; background: rgba(2,8,13,0.92);
  backdrop-filter: blur(10px); display: flex; align-items: flex-start; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.3s; padding: 4vh 2rem;
  overflow-y: auto; scrollbar-width: none; }
.modal-overlay::-webkit-scrollbar { display: none; }
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal { background: var(--bg-2); border: 1px solid var(--line); border-radius: 6px; padding: 3rem;
  max-width: 720px; width: 100%; position: relative; margin: auto;
  transform: translateY(16px); transition: transform 0.3s; }
.modal-overlay.open .modal { transform: none; }
.modal h2 { font-family: var(--cond); font-weight: 900; text-transform: uppercase; font-size: 2rem; color: var(--accent); margin-bottom: 1.4rem; }
.modal h3 { font-family: var(--cond); font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; font-size: 1.1rem; margin: 1.4rem 0 0.5rem; }
.modal p, .modal li { color: var(--mute); font-weight: 300; line-height: 1.8; font-size: 0.92rem; margin-bottom: 0.6rem; }
.modal a { color: var(--accent); }
.modal-close { position: absolute; top: 1.4rem; right: 1.4rem; width: 36px; height: 36px;
  background: none; border: 1px solid var(--line); color: var(--ink); cursor: pointer;
  font-family: var(--mono); display: flex; align-items: center; justify-content: center; transition: border-color 0.2s, color 0.2s; }
.modal-close:hover { border-color: var(--accent); color: var(--accent); }
.modal .src { font-size: 0.7rem; color: var(--faint); margin-top: 1rem; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 900px) {
  nav { padding: 1rem 1.4rem; }
  .nav-links { display: none; }
  .hud-phase { display: none; }
  .statement-grid { grid-template-columns: 1fr; gap: 2rem; }
  .stats-row { grid-template-columns: 1fr 1fr; gap: 1.6rem 1rem; }
  .sol-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .ind-grid { grid-template-columns: 1fr 1fr; }
  .foot-top { grid-template-columns: 1fr 1fr; }
  .device { width: 80vw; }
  .section { padding: 5rem 1.4rem; }
}
@media (max-width: 560px) {
  .steps, .ind-grid, .stats-row, .foot-top, .cf-grid { grid-template-columns: 1fr; }
  .foot-bottom { flex-direction: column; }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  .stage-grid, .scroll-hint .bar, .xray-scan, .screen-live i { animation: none !important; }
}

/* tweak: hide technical HUD */
body.hud-off .hud-phase,
body.hud-off .hud-readout { display: none !important; }