/* ==========================================================================
   Callsign:Scout — production stylesheet
   Ported 1:1 from the approved Claude Design prototype (see /design-source).
   ========================================================================== */

/* Self-hosted fonts (Latin subset) — no external font CDN at runtime. */
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('/assets/fonts/archivo-latin-400-700.woff2') format('woff2');
}
@font-face {
  font-family: 'Big Shoulders';
  font-style: normal;
  font-weight: 500 800;
  font-display: swap;
  src: url('/assets/fonts/big-shoulders-latin-500-800.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/assets/fonts/ibm-plex-mono-latin-400.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/assets/fonts/ibm-plex-mono-latin-500.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/assets/fonts/ibm-plex-mono-latin-600.woff2') format('woff2');
}

:root {
  --ink: #0A0B0C;
  --ink-alt: #08090A;
  --panel: #0D0E10;
  --panel-alt: #101114;
  --panel-hover: #14161A;
  --cream: #E8E6E1;
  --cream-strong: #F2EFE8;
  --orange: #FF5A1F;
  --orange-hover: #FF7A44;
  --amber: rgba(255, 177, 80, 0.85);
  --mono: 'IBM Plex Mono', monospace;
  --display: 'Big Shoulders', 'Big Shoulders Display', sans-serif;
  --body-font: 'Archivo', sans-serif;
}

/* ---------- Reset / base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--body-font);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img { max-width: 100%; display: block; }
a { color: var(--orange); text-decoration: none; }
a:hover { color: var(--orange-hover); }
::selection { background: var(--orange); color: var(--ink); }
input::placeholder { color: rgba(232, 230, 225, 0.35); }
h1, h2, h3, p { margin: 0; }
/* The `hidden` attribute must always win over any `display` an element's own
   class sets (e.g. `display: flex` on a hide/reveal target) — otherwise an
   author rule silently overrides the browser's default [hidden]{display:none}. */
[hidden] { display: none !important; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--orange);
  color: var(--ink);
  padding: 12px 20px;
  z-index: 1000;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.1em;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- Keyframes ---------- */
@keyframes csSweep { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes csBlink { 0%, 60% { opacity: 1; } 61%, 100% { opacity: 0.15; } }
@keyframes csPulse { 0% { transform: scale(0.6); opacity: 0.9; } 100% { transform: scale(2.6); opacity: 0; } }
@keyframes csScan { 0% { transform: translateY(-10%); } 100% { transform: translateY(110vh); } }
@keyframes csDash { to { stroke-dashoffset: -240; } }
@keyframes csDrift { 0% { background-position: 0 0; } 100% { background-position: 480px 480px; } }
@keyframes csPush { from { transform: scale(1); } to { transform: scale(1.06); } }
@keyframes csTopo { from { background-position: 0 0; } to { background-position: -736px -368px; } }
@keyframes csCaret { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
@keyframes csBar { 0%, 100% { transform: scaleY(0.3); } 50% { transform: scaleY(1); } }
@keyframes csScanImg { 0% { top: -4%; } 100% { top: 104%; } }
@keyframes csGlow { 0%, 100% { box-shadow: 0 0 0 rgba(255, 90, 31, 0); } 50% { box-shadow: 0 0 36px rgba(255, 90, 31, 0.35); } }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ---------- Shared utility classes ---------- */
.cs-blink { animation: csBlink 1.6s steps(1) infinite; }
.cs-dash { animation: csDash 6s linear infinite; }
.cs-orange { color: var(--orange); }
.cs-caret {
  display: inline-block;
  width: 7px;
  height: 12px;
  background: var(--amber);
  animation: csCaret 1.1s steps(1) infinite;
}
.cs-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
  display: inline-block;
}
.cs-kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--orange);
  display: inline-block;
}
.cs-kicker--center { text-align: center; }
.cs-body { font-size: 17px; line-height: 1.7; color: rgba(232, 230, 225, 0.75); }

.cs-section-inner { max-width: 1280px; margin: 0 auto; }
.cs-section-inner--narrow { max-width: 1080px; }

.cs-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  padding: 18px 34px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s, color 0.2s;
}
.cs-btn--primary {
  color: var(--ink);
  background: var(--orange);
  border-color: var(--orange);
  box-shadow: 0 0 32px rgba(255, 90, 31, 0.35);
}
.cs-btn--primary:hover {
  background: var(--orange-hover);
  border-color: var(--orange-hover);
  color: var(--ink);
  box-shadow: 0 0 48px rgba(255, 90, 31, 0.5);
}
.cs-btn--secondary {
  color: var(--cream);
  border-color: rgba(232, 230, 225, 0.25);
}
.cs-btn--secondary:hover { border-color: var(--orange); color: var(--orange); }

/* Persistent signal path (recurring vertical thread through sections) */
.cs-signal-path {
  position: absolute;
  left: 22px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, rgba(255, 90, 31, 0), rgba(255, 90, 31, 0.3) 15%, rgba(255, 90, 31, 0.3) 85%, rgba(255, 90, 31, 0));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 1.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.cs-signal-path.is-active { transform: scaleY(1); }
.cs-signal-node {
  position: absolute;
  left: 18px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid rgba(255, 90, 31, 0.7);
  background: transparent;
  transition: background 0.5s, box-shadow 0.5s;
}
.cs-signal-node.is-active { background: var(--orange); box-shadow: 0 0 12px rgba(255, 90, 31, 0.8); }

.cs-pulse-ring { animation: csPulse 5s ease-out infinite; }

/* ==========================================================================
   Header
   ========================================================================== */
.cs-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 40px;
  background: linear-gradient(to bottom, rgba(10, 11, 12, 0.85), rgba(10, 11, 12, 0));
  backdrop-filter: blur(2px);
}
.cs-logo { display: flex; align-items: center; gap: 12px; color: var(--cream); }
.cs-logo__type { display: flex; align-items: baseline; gap: 8px; }
.cs-logo__prefix { font-family: var(--mono); font-size: 12px; letter-spacing: 0.22em; color: rgba(232, 230, 225, 0.6); }
.cs-logo__wordmark { height: 16px; width: auto; filter: brightness(1.1); }

.cs-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  background: transparent;
  border: 1px solid rgba(232, 230, 225, 0.25);
  cursor: pointer;
  padding: 0;
}
.cs-nav-toggle span { display: block; height: 1px; background: var(--cream); margin: 0 7px; }

.cs-nav { display: flex; align-items: center; gap: 36px; }
.cs-nav__link { font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; color: rgba(232, 230, 225, 0.65); }
.cs-nav__link:hover { color: var(--orange); }
.cs-nav__cta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink);
  background: var(--orange);
  padding: 11px 22px;
  border: 1px solid var(--orange);
  transition: background 0.2s, border-color 0.2s;
}
.cs-nav__cta:hover { background: var(--orange-hover); border-color: var(--orange-hover); color: var(--ink); }

/* ==========================================================================
   1. Hero
   ========================================================================== */
.cs-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.cs-hero__bg-wrap {
  position: absolute;
  inset: -12% 0;
  overflow: hidden;
  animation: csPush 32s ease-in-out infinite alternate;
}
.cs-hero__bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 40%; }
.cs-hero__gradient-diag {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(10, 11, 12, 0.92) 0%, rgba(10, 11, 12, 0.55) 45%, rgba(10, 11, 12, 0.15) 75%);
}
.cs-hero__gradient-bottom {
  position: absolute; inset: 0;
  background: linear-gradient(to top, #0A0B0C 0%, rgba(10, 11, 12, 0) 30%);
}
.cs-hero__grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: radial-gradient(ellipse at 70% 40%, black 20%, transparent 75%);
}
.cs-hero__topo {
  position: absolute; inset: 0;
  background-image: url('/assets/topo-lines.png');
  background-size: 736px;
  mix-blend-mode: screen;
  opacity: 0.09;
  animation: csTopo 220s linear infinite;
  pointer-events: none;
}

/* HUD overlay */
.cs-hud { position: absolute; inset: 0; pointer-events: none; }
.cs-hud__scanline-wrap { position: absolute; inset: 0; overflow: hidden; }
.cs-hud__scanline {
  position: absolute; left: 0; right: 0; height: 120px;
  background: linear-gradient(to bottom, rgba(255, 90, 31, 0) 0%, rgba(255, 90, 31, 0.06) 60%, rgba(255, 90, 31, 0.14) 100%);
  border-bottom: 1px solid rgba(255, 90, 31, 0.35);
  animation: csScan 9s linear infinite;
}
.cs-hud__panel {
  position: absolute; left: 40px; top: 118px;
  display: flex; flex-direction: column; gap: 22px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  color: rgba(232, 230, 225, 0.55);
}
.cs-hud__row { display: flex; flex-direction: column; gap: 4px; }
.cs-hud__tag { color: rgba(255, 90, 31, 0.8); }
.cs-hud__live { display: flex; align-items: center; gap: 8px; }
.cs-hud__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--orange); }
.cs-hud__bars { display: flex; align-items: flex-end; gap: 3px; height: 14px; margin-top: 6px; }
.cs-bar {
  width: 4px; height: 14px;
  background: rgba(255, 177, 80, 0.65);
  transform-origin: bottom;
  animation-name: csBar;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
}
.cs-hud__init {
  display: flex; flex-direction: column; gap: 4px;
  margin-top: 6px; padding-top: 14px;
  border-top: 1px solid rgba(255, 90, 31, 0.2);
  font-size: 10px; color: rgba(255, 177, 80, 0.7);
}
.cs-hud__init [data-init-line] { opacity: 0; transition: opacity 0.4s ease; }

.cs-radar { position: absolute; right: 56px; bottom: 120px; width: 150px; height: 150px; }
.cs-radar__ring { position: absolute; border-radius: 50%; border: 1px solid rgba(255, 90, 31, 0.35); }
.cs-radar__ring--1 { inset: 0; }
.cs-radar__ring--2 { inset: 24px; border-color: rgba(255, 90, 31, 0.22); }
.cs-radar__ring--3 { inset: 48px; border-color: rgba(255, 90, 31, 0.16); }
.cs-radar__sweep {
  position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(255, 90, 31, 0.35), rgba(255, 90, 31, 0) 70deg);
  animation: csSweep 4s linear infinite;
}
.cs-radar__blip { position: absolute; width: 5px; height: 5px; border-radius: 50%; background: var(--orange); }
.cs-radar__blip--center { left: 50%; top: 50%; margin: -2px; }
.cs-radar__blip--a { left: 34%; top: 28%; }
.cs-radar__blip--b { left: 66%; top: 60%; background: rgba(255, 90, 31, 0.7); }
.cs-radar__label {
  position: absolute; left: 0; top: -22px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; color: rgba(255, 90, 31, 0.7);
}

.cs-route { position: absolute; right: 10%; top: 16%; width: 460px; height: 340px; }
.cs-route__path { transition: stroke-dashoffset 3.5s cubic-bezier(0.4, 0, 0.2, 1); }

.cs-hero__content-wrap {
  position: relative; z-index: 2;
  padding: 160px 40px 140px 40px;
  max-width: 1280px; margin: 0 auto; width: 100%;
}
.cs-hero__content {
  max-width: 760px;
  display: flex; flex-direction: column; align-items: flex-start; gap: 28px;
  margin-left: 200px;
}
.cs-eyebrow {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.24em; color: var(--orange);
}
.cs-eyebrow__rule { width: 28px; height: 1px; background: var(--orange); }
.cs-hero__headline {
  font-family: var(--display); font-weight: 750;
  font-size: clamp(2.75rem, 6vw + 1.6rem, 6.75rem);
  line-height: 0.92; letter-spacing: 0.005em; color: var(--cream-strong);
  text-wrap: balance;
}
.cs-hero__sub { max-width: 480px; font-size: 18px; line-height: 1.6; color: rgba(232, 230, 225, 0.75); text-wrap: pretty; }
.cs-hero__actions { display: flex; align-items: center; gap: 16px; margin-top: 8px; flex-wrap: wrap; }

.cs-scroll-cue {
  position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.3em; color: rgba(232, 230, 225, 0.4);
}
.cs-scroll-cue span { width: 1px; height: 34px; background: linear-gradient(to bottom, rgba(255, 90, 31, 0.8), transparent); }

/* ==========================================================================
   2. Why / emotional transition
   ========================================================================== */
.cs-why { position: relative; min-height: 92vh; display: flex; align-items: center; overflow: hidden; }
.cs-why__bg { position: absolute; inset: -10% 0; width: 100%; height: 120%; object-fit: cover; object-position: center 45%; }
.cs-why__gradient-v {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, #0A0B0C 0%, rgba(10, 11, 12, 0.45) 35%, rgba(10, 11, 12, 0.45) 65%, #0A0B0C 100%);
}
.cs-why__gradient-h {
  position: absolute; inset: 0;
  background: linear-gradient(to right, rgba(10, 11, 12, 0.75) 0%, rgba(10, 11, 12, 0) 55%);
}
.cs-why__content { position: relative; z-index: 2; max-width: 1280px; margin: 0 auto; width: 100%; padding: 120px 40px; }
.cs-why__col { max-width: 560px; display: flex; flex-direction: column; gap: 26px; }
.cs-why__headline {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(1.9rem, 4vw + 1rem, 4rem);
  line-height: 1; color: var(--cream-strong); text-wrap: balance;
}
.cs-quote {
  display: flex; align-items: center; gap: 14px; margin-top: 6px;
  padding: 16px 20px; border-left: 2px solid var(--orange); background: rgba(255, 90, 31, 0.06);
}
.cs-quote p { font-family: var(--mono); font-size: 13px; line-height: 1.7; letter-spacing: 0.04em; color: var(--cream); }

/* Map fragment divider */
.cs-divider {
  position: relative; height: 110px; background: var(--ink-alt); overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.06); border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.cs-divider__topo {
  position: absolute; inset: 0;
  background-image: url('/assets/topo-lines.png'); background-size: 736px;
  mix-blend-mode: screen; opacity: 0.16;
  animation: csTopo 260s linear infinite;
}
.cs-divider__topo--b { background-position: -300px -200px; animation-direction: reverse; }
.cs-divider__row {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px; flex-wrap: wrap; row-gap: 4px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em; color: rgba(255, 177, 80, 0.55);
}

/* ==========================================================================
   3. Platform
   ========================================================================== */
.cs-platform { position: relative; padding: 140px 40px; background: var(--panel); overflow: hidden; }
.cs-platform__grid-bg {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 120px 120px;
  animation: csDrift 60s linear infinite;
}
.cs-platform__head {
  position: relative;
  display: flex; align-items: flex-end; justify-content: space-between; gap: 40px;
  margin-bottom: 72px; flex-wrap: wrap;
}
.cs-platform__head-text { display: flex; flex-direction: column; gap: 18px; max-width: 640px; }
.cs-h2 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(2.1rem, 4.5vw + 1rem, 4.5rem);
  line-height: 0.95; color: var(--cream-strong);
}
.cs-platform__head-sub { max-width: 380px; font-size: 16px; line-height: 1.65; color: rgba(232, 230, 225, 0.65); text-wrap: pretty; }

.cs-platform__cards {
  position: relative;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.08);
}
.cs-card {
  background: var(--panel-alt);
  padding: 36px 28px 44px 28px;
  display: flex; flex-direction: column; gap: 18px;
  transition: background 0.2s;
}
.cs-card:hover { background: var(--panel-hover); }
.cs-card__num { font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em; color: rgba(255, 90, 31, 0.8); }
.cs-card__title { font-family: var(--display); font-weight: 650; font-size: 27px; letter-spacing: 0.02em; color: var(--cream-strong); }
.cs-card__body { font-size: 15px; line-height: 1.65; color: rgba(232, 230, 225, 0.62); text-wrap: pretty; }

/* ==========================================================================
   4. How it works
   ========================================================================== */
.cs-how { position: relative; padding: 140px 40px 160px 40px; background: var(--ink); overflow: hidden; }
.cs-how__head { display: flex; flex-direction: column; align-items: center; gap: 18px; text-align: center; margin-bottom: 90px; }

.cs-steps { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.cs-steps__line { position: absolute; left: 12%; right: 12%; top: 27px; width: 76%; height: 2px; overflow: visible; }
.cs-step { display: flex; flex-direction: column; align-items: center; gap: 20px; text-align: center; position: relative; }
.cs-step__num {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255, 90, 31, 0.6); background: var(--ink);
  font-family: var(--mono); font-size: 16px; color: var(--orange);
  position: relative; z-index: 1;
  transition: box-shadow 0.5s, border-color 0.5s, background 0.5s;
}
.cs-step__num.is-active { border-color: var(--orange); background: rgba(255, 90, 31, 0.12); box-shadow: 0 0 24px rgba(255, 90, 31, 0.4); }
.cs-step__title { font-family: var(--display); font-weight: 650; font-size: 30px; letter-spacing: 0.02em; color: var(--cream-strong); }
.cs-step__body { max-width: 270px; font-size: 15px; line-height: 1.65; color: rgba(232, 230, 225, 0.62); text-wrap: pretty; }
.cs-step__pulse {
  position: absolute; top: 0; left: 50%; width: 56px; height: 56px; margin-left: -28px;
  border-radius: 50%; border: 1px solid rgba(255, 90, 31, 0.6);
  opacity: 0; pointer-events: none;
}

/* ==========================================================================
   5. Features
   ========================================================================== */
.cs-features { position: relative; padding: 0 40px 160px 40px; background: var(--ink); overflow: hidden; }
.cs-features__grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 72px; align-items: center; }
.cs-features__media { position: relative; }
.cs-features__frame { position: relative; overflow: hidden; border: 1px solid rgba(255, 255, 255, 0.1); }
.cs-features__frame img { width: 100%; height: 640px; object-fit: cover; object-position: center; }
.cs-features__frame-gradient {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10, 11, 12, 0.75), rgba(10, 11, 12, 0) 45%);
}
.cs-features__frame-label {
  position: absolute; left: 20px; bottom: 20px;
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; color: rgba(232, 230, 225, 0.75);
}
.cs-features__scanline {
  position: absolute; left: 0; right: 0; height: 2px;
  background: rgba(255, 90, 31, 0.45); box-shadow: 0 0 14px rgba(255, 90, 31, 0.6);
  animation: csScanImg 8s linear infinite;
  pointer-events: none;
}
.cs-features__sig {
  position: absolute; right: 20px; top: 20px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; color: rgba(255, 90, 31, 0.8);
  border: 1px solid rgba(255, 90, 31, 0.4); padding: 6px 10px;
}
.cs-features__corner { position: absolute; width: 40px; height: 40px; }
.cs-features__corner--tl { left: -14px; top: -14px; border-left: 1px solid var(--orange); border-top: 1px solid var(--orange); }
.cs-features__corner--br { right: -14px; bottom: -14px; border-right: 1px solid var(--orange); border-bottom: 1px solid var(--orange); }

.cs-features__text { display: flex; flex-direction: column; gap: 14px; }
.cs-features__headline {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(1.9rem, 4vw + 1rem, 4rem);
  line-height: 0.95; color: var(--cream-strong); text-wrap: balance;
  margin: 0 0 22px 0;
}
.cs-features__list { display: flex; flex-direction: column; }
.cs-feature-row {
  display: flex; align-items: baseline; gap: 20px; padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  transition: border-top-color 0.2s;
}
.cs-feature-row:hover { border-top-color: rgba(255, 90, 31, 0.5); }
.cs-feature-row--last { border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.cs-feature-row__letter { font-family: var(--mono); font-size: 12px; color: rgba(255, 90, 31, 0.8); min-width: 32px; }
.cs-feature-row__title { font-size: 18px; font-weight: 600; color: var(--cream-strong); margin: 0 0 4px 0; }
.cs-feature-row__body { font-size: 15px; line-height: 1.6; color: rgba(232, 230, 225, 0.6); }
.cs-tag {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; color: var(--orange);
  border: 1px solid rgba(255, 90, 31, 0.4); padding: 3px 7px; margin-left: 8px; vertical-align: 2px;
  display: inline-block;
}

/* ==========================================================================
   6. Story sections
   ========================================================================== */
.cs-story { position: relative; min-height: 88vh; display: flex; align-items: flex-end; overflow: hidden; }
.cs-story__bg { position: absolute; inset: -10% 0; width: 100%; height: 120%; object-fit: cover; }
.cs-story__gradient {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, #0A0B0C 0%, rgba(10, 11, 12, 0.1) 40%, rgba(10, 11, 12, 0.85) 100%);
}
.cs-story__gradient--strong {
  background: linear-gradient(to bottom, #0A0B0C 0%, rgba(10, 11, 12, 0.15) 40%, rgba(10, 11, 12, 0.88) 100%);
}
.cs-story__coords {
  position: absolute; top: 26px; z-index: 3;
  display: flex; gap: 24px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; color: rgba(255, 177, 80, 0.6);
}
.cs-story__coords--right { right: 40px; }
.cs-story__coords--left { left: 40px; }

.cs-story__svg { position: absolute; left: 8%; top: 14%; width: 480px; height: 300px; z-index: 2; pointer-events: none; }

.cs-story__content-wrap {
  position: relative; z-index: 2; max-width: 1280px; margin: 0 auto; width: 100%;
  padding: 0 40px 90px 40px; display: flex;
}
.cs-story__content-wrap--left { justify-content: flex-start; }
.cs-story__content-wrap--right { justify-content: flex-end; }
.cs-story__content { max-width: 520px; display: flex; flex-direction: column; gap: 16px; }
.cs-story__content--right { text-align: right; align-items: flex-end; }
.cs-story__headline {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(1.8rem, 4vw + 0.9rem, 3.625rem);
  line-height: 0.98; color: var(--cream-strong); text-wrap: balance;
}
.cs-story__body { font-size: 16px; line-height: 1.65; color: rgba(232, 230, 225, 0.72); text-wrap: pretty; }

/* story 2 — waveform */
.cs-waveform { position: absolute; left: 40px; bottom: 96px; z-index: 3; display: flex; flex-direction: column; gap: 10px; pointer-events: none; }
.cs-waveform__label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; color: rgba(255, 177, 80, 0.65); }

/* story 1 — arrival pulse ring inside svg */
.cs-story__svg .cs-pulse-ring { animation-duration: 3.4s; transform-box: fill-box; transform-origin: center; }

/* story 3 — coverage rings */
.cs-coverage { position: absolute; left: 50%; top: 28%; width: 180px; height: 180px; margin-left: -90px; z-index: 2; pointer-events: none; }
.cs-coverage__ring { position: absolute; inset: 0; border-radius: 50%; border: 1px solid rgba(255, 90, 31, 0.45); }
.cs-coverage .cs-pulse-ring { animation-duration: 5s; }
.cs-coverage__dot { position: absolute; left: 50%; top: 50%; width: 5px; height: 5px; margin: -2px; border-radius: 50%; background: var(--orange); }
.cs-coverage__label {
  position: absolute; left: 50%; top: -26px; transform: translateX(-50%);
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; color: rgba(255, 177, 80, 0.65); white-space: nowrap;
}

/* ==========================================================================
   7. Waitlist / final CTA
   ========================================================================== */
.cs-waitlist { position: relative; padding: 170px 40px 150px 40px; background: var(--ink); overflow: hidden; }
.cs-waitlist__grid-bg {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255, 90, 31, 0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 90, 31, 0.05) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at 50% 45%, black 10%, transparent 70%);
}
.cs-waitlist__topo {
  position: absolute; inset: 0;
  background-image: url('/assets/topo-lines.png'); background-size: 736px;
  mix-blend-mode: screen; opacity: 0.07;
  animation: csTopo 240s linear infinite;
  pointer-events: none;
}
.cs-waitlist__rings {
  position: absolute; left: 50%; top: 46%; width: 720px; height: 720px;
  transform: translate(-50%, -50%); pointer-events: none;
}
.cs-waitlist__ring { position: absolute; border-radius: 50%; border: 1px solid rgba(255, 90, 31, 0.14); }
.cs-waitlist__ring--1 { inset: 0; }
.cs-waitlist__ring--2 { inset: 110px; border-color: rgba(255, 90, 31, 0.1); }
.cs-waitlist__ring--3 { inset: 220px; border-color: rgba(255, 90, 31, 0.08); }
.cs-waitlist__pulse {
  position: absolute; left: 50%; top: 50%; width: 240px; height: 240px; margin: -120px;
  border-radius: 50%; border: 1px solid rgba(255, 90, 31, 0.5);
}
.cs-waitlist__pulse.cs-pulse-ring { animation-duration: 3.5s; }

.cs-waitlist__content {
  position: relative; z-index: 2; max-width: 760px; margin: 0 auto;
  display: flex; flex-direction: column; align-items: center; gap: 28px; text-align: center;
}
.cs-waitlist__headline {
  font-family: var(--display); font-weight: 750;
  font-size: clamp(2.6rem, 7vw + 1.4rem, 6.5rem);
  line-height: 0.92; color: var(--cream-strong);
}
.cs-waitlist__sub { max-width: 460px; font-size: 17px; line-height: 1.65; color: rgba(232, 230, 225, 0.7); text-wrap: pretty; }

.cs-waitlist__form { width: 100%; display: flex; flex-direction: column; align-items: center; gap: 16px; }
.cs-waitlist__input-row { display: flex; gap: 0; width: 100%; max-width: 560px; margin-top: 8px; }
.cs-input {
  flex: 1; min-width: 0;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(232, 230, 225, 0.25); border-right: none;
  color: var(--cream); font-family: var(--mono); font-size: 14px; padding: 20px 22px; outline: none;
  transition: border-color 0.2s, background 0.2s;
}
.cs-input:focus { border-color: var(--orange); background: rgba(255, 90, 31, 0.05); }
.cs-waitlist__submit { flex-shrink: 0; }
.cs-waitlist__disclaimer { margin: 0; font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; color: rgba(232, 230, 225, 0.4); }
.cs-waitlist__error { margin: 0; font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; color: var(--orange-hover); }

.cs-confirm {
  display: flex; flex-direction: column; align-items: flex-start; gap: 12px;
  margin-top: 8px; padding: 30px 44px;
  border: 1px solid rgba(255, 90, 31, 0.5); background: rgba(255, 90, 31, 0.06);
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.16em;
  min-width: 420px; max-width: 100%; text-align: left;
  animation: csGlow 2.8s ease-in-out infinite;
}
.cs-confirm__line--live { display: flex; align-items: center; gap: 10px; color: var(--orange); }
.cs-confirm__line--step2 { color: rgba(255, 177, 80, 0.9); }
.cs-confirm__line--step3 { color: var(--cream); }
.cs-confirm__line--step4 { display: flex; align-items: center; gap: 8px; color: rgba(255, 177, 80, 0.85); }

/* ==========================================================================
   Footer
   ========================================================================== */
.cs-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 36px 40px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  background: var(--ink-alt);
}
.cs-footer__brand { display: flex; align-items: center; gap: 12px; }
.cs-footer__copy { font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em; color: rgba(232, 230, 225, 0.55); }
.cs-footer__tagline { font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; color: rgba(232, 230, 225, 0.35); }
.cs-footer__links { display: flex; gap: 28px; }
.cs-footer__link { font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; color: rgba(232, 230, 225, 0.55); }
.cs-footer__link:hover { color: var(--orange); }

/* ==========================================================================
   Scroll-reveal (JS toggles .is-visible)
   ========================================================================== */
[data-reveal] {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   Responsive — Tablet (<=1024px)
   ========================================================================== */
@media (max-width: 1024px) {
  .cs-hero__content { margin-left: 64px; }
  .cs-radar, .cs-route, .cs-hud__panel { display: none; }

  .cs-platform__cards { grid-template-columns: repeat(2, 1fr); }
  .cs-features__grid { grid-template-columns: 1fr; gap: 48px; }
  .cs-features__frame img { height: 480px; }

  .cs-story__svg { display: none; }
  .cs-waveform { display: none; }
}

/* ==========================================================================
   Responsive — Mobile (<=640px)
   ========================================================================== */
@media (max-width: 640px) {
  .cs-header { padding: 14px 20px; }
  .cs-nav-toggle { display: flex; }
  .cs-nav {
    position: fixed; top: 62px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(8, 9, 10, 0.98);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .cs-nav.is-open { max-height: 320px; }
  .cs-nav__link { padding: 18px 20px; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
  .cs-nav__cta { margin: 16px 20px; text-align: center; justify-content: center; }

  .cs-hero__content-wrap { padding: 120px 20px 90px 20px; }
  .cs-hero__content { margin-left: 0; gap: 20px; }
  .cs-hero__actions { width: 100%; }
  .cs-hero__actions .cs-btn { flex: 1 1 auto; justify-content: center; }

  .cs-hud__scanline-wrap { display: none; }

  .cs-why__content { padding: 90px 20px; }
  .cs-platform, .cs-how { padding-left: 20px; padding-right: 20px; }
  .cs-platform { padding-top: 90px; padding-bottom: 90px; }
  .cs-how { padding-top: 90px; padding-bottom: 100px; }
  .cs-features { padding: 0 20px 100px 20px; }
  .cs-waitlist { padding: 110px 20px 100px 20px; }

  .cs-platform__cards { grid-template-columns: 1fr; }
  .cs-platform__head { margin-bottom: 48px; }

  .cs-steps { grid-template-columns: 1fr; gap: 56px; }
  .cs-steps__line { display: none; }

  .cs-story__content-wrap { padding: 0 20px 56px 20px; }
  .cs-story__content, .cs-story__content--right {
    max-width: 100%; text-align: left; align-items: flex-start;
  }
  .cs-story__coords { display: none; }
  .cs-coverage { transform: scale(0.75); left: 50%; }

  .cs-waitlist__rings { width: 90vw; height: 90vw; }
  .cs-waitlist__pulse { width: 140px; height: 140px; margin: -70px; }
  .cs-waitlist__input-row { flex-direction: column; }
  .cs-input { border-right: 1px solid rgba(232, 230, 225, 0.25); border-bottom: none; }
  .cs-waitlist__submit { width: 100%; justify-content: center; }
  .cs-confirm { min-width: 0; width: 100%; padding: 24px; }

  .cs-divider__row { font-size: 9px; gap: 6px 14px; padding: 12px 20px; justify-content: center; text-align: center; }
  .cs-divider { height: auto; min-height: 90px; }

  .cs-footer { flex-direction: column; text-align: center; }
}