/* ================================================================
   ArcWith — Creative OS Landing Page
   Design System: monopo saigon
   Liquid iridescence behind editorial silence — monochrome UI,
   0px corners, 75px pill buttons, no shadow elevation.
   ================================================================ */

/* ---------- Design Tokens ---------- */
:root {
  /* Colors — monopo saigon palette */
  --color-obsidian: #000000;
  --color-paper: #ffffff;
  --color-inkstone: #181818;
  --color-felt-gray: #6d6d6d;
  --color-slate-pill: #636363;
  --color-ash-mist: #9a9a9a;
  --color-pewter: #808080;
  --color-cream: #d7d6ce;
  --color-cream-dark: #c9c8c0;
  --color-iridescent-fade: #a02d25;
  --color-sage: #789e71;
  --color-amber: #e09442;

  /* Surfaces */
  --surface-paper: #ffffff;
  --surface-slate-pill: #636363;
  --surface-obsidian: #000000;
  --surface-ash-mist: #9a9a9a;
  --surface-cream: #d7d6ce;

  /* Gradient — hero iridescence only */
  --gradient-iridescent-fade: linear-gradient(90deg, rgb(160, 224, 171), rgb(255, 172, 46) 50%, rgb(165, 45, 37));

  /* Typography */
  --font-roobert: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-raleway: 'Raleway', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-system-ui: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Type Scale */
  --text-caption: 12px;
  --leading-caption: 1.19;
  --text-body-sm: 16px;
  --leading-body-sm: 1.15;
  --text-body: 18px;
  --leading-body: 1.21;
  --text-subheading: 39px;
  --leading-subheading: 1.19;
  --text-subheading-lg: 45px;
  --leading-subheading-lg: 1.15;
  --text-heading-sm: 54px;
  --leading-heading-sm: 1.39;
  --text-heading: 78px;
  --leading-heading: 1.1;
  --text-heading-lg: 94px;
  --leading-heading-lg: 0.76;
  --text-display: 225px;
  --leading-display: 1.25;

  /* Weights */
  --fw-light: 300;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;

  /* Spacing — 4px base */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-14: 56px;
  --sp-16: 64px;
  --sp-20: 80px;
  --sp-24: 96px;
  --sp-32: 128px;
  --sp-38: 152px;

  /* Layout */
  --page-max-width: 1078px;
  --section-gap: 46px;
  --card-padding: 34px;
  --element-gap: 14px;
  --container-pad: 24px;

  /* Border Radius — monopo scale: 0px or 75px */
  --radius-full: 75.024px;
  --radius-cards: 0px;
  --radius-images: 0px;
  --radius-inputs: 0px;
  --radius-buttons: 75px;
  --radius-tags: 75px;

  /* Motion */
  --ease: ease;
  --ease-out: cubic-bezier(0.19, 1, 0.22, 1);
  --dur-fast: 400ms;
  --dur-med: 800ms;
  --dur-slow: 1250ms;

  /* Nav */
  --nav-h: 66px;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-roobert);
  font-size: var(--text-body);
  font-weight: var(--fw-regular);
  line-height: var(--leading-body);
  color: var(--color-obsidian);
  background: var(--color-paper);
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; }

::selection {
  background: var(--color-obsidian);
  color: var(--color-paper);
}

/* ---------- Skip Link (Accessibility) ---------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-obsidian);
  color: var(--color-paper);
  padding: var(--sp-2) var(--sp-4);
  font-family: var(--font-roobert);
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  letter-spacing: 1.5px;
  z-index: 10002;
  transition: top var(--dur-fast) var(--ease);
}

.skip-link:focus { top: 0; }

/* ---------- Visually Hidden ---------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Focus Ring (Keyboard) ---------- */
*:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

/* ---------- Grain Overlay ---------- */
.grain-overlay {
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  pointer-events: none;
  z-index: 9998;
  opacity: 0.20;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 800 800' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
  background-size: cover;
  background-repeat: no-repeat;
  animation: grainShift 10s steps(12) infinite;
}

@keyframes grainShift {
  0%, 100% { transform: translate(0, 0); }
  10% { transform: translate(-2%, -2%); }
  20% { transform: translate(-3%, 2%); }
  30% { transform: translate(2%, -3%); }
  40% { transform: translate(-2%, 3%); }
  50% { transform: translate(-3%, 2%); }
  60% { transform: translate(3%, 0%); }
  70% { transform: translate(0%, 3%); }
  80% { transform: translate(-3%, 0%); }
  90% { transform: translate(2%, 2%); }
}

/* ---------- Scroll Progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--color-obsidian);
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ---------- Custom Cursor ---------- */
.cursor-dot {
  position: fixed;
  width: 6px;
  height: 6px;
  background: #fff;
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: width var(--dur-fast) var(--ease-out), height var(--dur-fast) var(--ease-out);
  mix-blend-mode: difference;
}

.cursor-ring {
  position: fixed;
  width: 36px;
  height: 36px;
  border: 1px solid #fff;
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: width var(--dur-med) var(--ease-out), height var(--dur-med) var(--ease-out);
  mix-blend-mode: difference;
}

.cursor-dot.is-hover { width: 12px; height: 12px; }
.cursor-ring.is-hover { width: 56px; height: 56px; }

@media (max-width: 768px) {
  .cursor-dot, .cursor-ring { display: none; }
}

/* ---------- Preloader ---------- */
.preloader {
  position: fixed;
  inset: 0;
  background: var(--color-obsidian);
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 1.2s var(--ease-out);
}

.preloader.is-done { transform: translateY(-100%); }

.preloader-inner { text-align: center; }

.preloader-text {
  font-family: var(--font-roobert);
  font-size: clamp(32px, 6vw, 64px);
  font-weight: var(--fw-regular);
  color: var(--color-paper);
  letter-spacing: -0.03em;
  margin-bottom: var(--sp-3);
  overflow: hidden;
}

.preloader-text span {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%);
}

.preloader-bar {
  width: 200px;
  height: 1px;
  background: rgba(255, 255, 255, 0.22);
  margin: 0 auto var(--sp-2);
  overflow: hidden;
}

.preloader-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--color-paper);
  transition: width 1.5s var(--ease-out);
}

.preloader-label {
  font-family: var(--font-roobert);
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  letter-spacing: 1.5px;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
}

/* ---------- Buttons (monopo system) ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-roobert);
  font-size: var(--text-body-sm);
  font-weight: var(--fw-regular);
  border-radius: var(--radius-buttons);
  padding: 11px 33px;
  white-space: nowrap;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), letter-spacing var(--dur-fast) var(--ease-out);
  min-height: 44px;
  border: 1px solid transparent;
  background: transparent;
}

/* Primary — Ghost pill on dark surfaces */
.btn--primary {
  color: var(--color-paper);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn--primary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.5px;
}

.btn--primary:active {
  background: rgba(255, 255, 255, 0.22);
}

/* Secondary — Ghost pill on light surfaces */
.btn--secondary {
  color: var(--color-obsidian);
  border-color: var(--color-obsidian);
}

.btn--secondary:hover {
  background: rgba(0, 0, 0, 0.06);
  letter-spacing: 0.5px;
}

.btn--secondary:active {
  background: rgba(0, 0, 0, 0.12);
}

/* Tertiary — Filled neutral pill (consent / utility) */
.btn--neutral {
  background: rgba(55, 55, 55, 0.78);
  color: var(--color-paper);
  border-color: var(--color-paper);
}

.btn--neutral:hover {
  background: var(--color-obsidian);
}

/* ---------- Section surface helpers ---------- */
.section--dark {
  background: var(--color-obsidian);
  color: var(--color-paper);
}

.section--light {
  background: var(--color-cream);
  color: var(--color-obsidian);
}

.section--paper {
  background: var(--color-paper);
  color: var(--color-obsidian);
}

/* Invert buttons in light contexts */
.section--light .btn--primary,
.section--paper .btn--primary {
  color: var(--color-obsidian);
  border-color: var(--color-obsidian);
}

.section--light .btn--primary:hover,
.section--paper .btn--primary:hover {
  background: rgba(0, 0, 0, 0.06);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--sp-6);
  z-index: 1000;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
  border-bottom: 1px solid transparent;
  color: var(--color-paper);
}

.nav.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: rgba(0, 0, 0, 0.08);
  color: var(--color-obsidian);
}

.nav.is-scrolled .btn--primary {
  color: var(--color-obsidian);
  border-color: var(--color-obsidian);
}

.nav.is-scrolled .btn--primary:hover {
  background: rgba(0, 0, 0, 0.06);
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-roobert);
  font-size: var(--text-body);
  font-weight: var(--fw-medium);
  color: inherit;
  letter-spacing: 0.08em;
  z-index: 1001;
  transition: opacity var(--dur-fast) var(--ease);
}

.nav-logo:hover { opacity: 0.55; }

.nav-logo-icon {
  display: inline-flex;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.nav-logo-icon svg {
  width: 100%;
  height: 100%;
}

.nav-logo-text {
  color: inherit;
}

.nav-links {
  display: flex;
  gap: var(--sp-4);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav-links a {
  font-family: var(--font-roobert);
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: inherit;
  opacity: 0.55;
  transition: opacity var(--dur-fast) var(--ease);
  padding: var(--sp-1) 0;
}

.nav-links a:hover { opacity: 1; }

.nav-links a.is-active {
  opacity: 1;
  box-shadow: 0 -1px 0 0 currentColor inset;
}

.nav-cta {
  position: relative;
  z-index: 1001;
  font-size: var(--text-caption);
  padding: 8px 20px;
}

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  z-index: 1001;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
}

.nav-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  border-radius: 0;
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}

.nav-burger.is-open span:first-child { transform: translateY(3.5px) rotate(45deg); }
.nav-burger.is-open span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* ---------- Mobile Menu ---------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--color-obsidian);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-6);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-fast) var(--ease);
  color: var(--color-paper);
}

.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu-link {
  font-family: var(--font-roobert);
  font-size: var(--text-body-lg, 24px);
  font-weight: var(--fw-light);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: inherit;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}

.mobile-menu-link:hover { opacity: 0.55; }

.mobile-menu.is-open .mobile-menu-link {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu.is-open .mobile-menu-link:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu.is-open .mobile-menu-link:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu.is-open .mobile-menu-link:nth-child(3) { transition-delay: 0.2s; }

@media (max-width: 900px) {
  .nav { padding: 0 var(--sp-3); }
  .nav-links, .nav-cta { display: none; }
  .nav-burger { display: flex; }
}

/* ---------- Section Inner ---------- */
.section-inner {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section-eyebrow {
  font-family: var(--font-roobert);
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  color: inherit;
  opacity: 0.55;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  margin-bottom: var(--sp-4);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #0a0b08;
  color: var(--color-paper);
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 0%, transparent 55%, rgba(12, 13, 10, 0.55) 90%, rgba(12, 13, 10, 0.85) 100%);
  z-index: 2;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 0 var(--sp-4);
  max-width: 1200px;
}

.hero-eyebrow {
  font-family: var(--font-roobert);
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  color: inherit;
  opacity: 0.55;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  margin-bottom: var(--sp-4);
}

.hero-title {
  font-family: var(--font-roobert);
  font-size: clamp(48px, 10vw, 120px);
  font-weight: var(--fw-light);
  line-height: 0.95;
  color: inherit;
  letter-spacing: -0.04em;
  margin-bottom: var(--sp-4);
}

.hero-title-static { display: inline; }

.hero-title-dynamic {
  display: inline;
  font-family: var(--font-roobert);
  font-weight: var(--fw-light);
}

.typewriter-word {
  display: inline-block;
  color: inherit;
}

.typewriter-cursor {
  display: inline-block;
  width: 3px;
  height: 0.75em;
  background: currentColor;
  margin-left: 4px;
  vertical-align: baseline;
  animation: blink 0.8s steps(2) infinite;
}

.typewriter-cursor.is-hidden { opacity: 0; }

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-subtitle {
  font-family: var(--font-roobert);
  font-size: clamp(14px, 1.8vw, 18px);
  font-weight: var(--fw-light);
  color: inherit;
  opacity: 0.55;
  letter-spacing: 0.02em;
  max-width: 500px;
  margin: 0 auto;
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--sp-6);
  left: var(--sp-6);
  z-index: 3;
  width: 74px;
  height: 74px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  display: grid;
  place-items: center;
  animation: scrollRotate 20s linear infinite;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.scroll-indicator:hover {
  background: var(--color-paper);
  color: var(--color-obsidian);
}

@keyframes scrollRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.scroll-indicator-svg {
  width: 100%;
  height: 100%;
}

.scroll-indicator-text {
  font-family: var(--font-roobert);
  font-size: 7px;
  font-weight: var(--fw-regular);
  fill: currentColor;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.scroll-indicator-arrow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 6px solid currentColor;
  animation: scrollArrow 2s var(--ease-out) infinite;
}

.scroll-indicator:hover .scroll-indicator-arrow { border-top-color: var(--color-obsidian); }

@keyframes scrollArrow {
  0%, 100% { transform: translate(-50%, -40%); opacity: 0.3; }
  50% { transform: translate(-50%, -60%); opacity: 0.8; }
}

/* Hero Corners */
.hero-corner {
  position: absolute;
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-corner--bl { bottom: var(--sp-6); left: 130px; }
.hero-corner--br { bottom: var(--sp-6); right: var(--sp-6); text-align: right; }

.hero-corner-label {
  font-family: var(--font-roobert);
  font-size: 10px;
  font-weight: var(--fw-regular);
  color: inherit;
  opacity: 0.55;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

@media (max-width: 768px) {
  .hero-corner { display: none; }
  .scroll-indicator { width: 62px; height: 62px; bottom: var(--sp-3); left: var(--sp-3); }
  .scroll-indicator-text { font-size: 6px; }
  .hero-content { padding: 0 var(--sp-3); }
}

/* ---------- Marquee ---------- */
.marquee {
  background: var(--color-obsidian);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  overflow: hidden;
  padding: var(--sp-3) 0;
  white-space: nowrap;
  color: var(--color-paper);
}

.marquee-track {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-4);
  animation: marqueeScroll 30s linear infinite;
  will-change: transform;
}

@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.marquee-item {
  font-family: var(--font-roobert);
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  color: inherit;
  opacity: 0.55;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.marquee-dot {
  color: inherit;
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  opacity: 0.55;
}

/* ---------- Manifesto ---------- */
.manifesto {
  background: var(--color-cream);
  color: var(--color-obsidian);
  padding: 0;
  overflow: hidden;
}

.manifesto-inner {
  padding-top: var(--sp-24);
  padding-bottom: var(--sp-24);
}

.manifesto-heading {
  font-family: var(--font-roobert);
  font-size: clamp(32px, 6vw, 78px);
  font-weight: var(--fw-light);
  line-height: 1.05;
  color: inherit;
  letter-spacing: -0.04em;
  margin-bottom: var(--sp-8);
  max-width: 900px;
}

.manifesto-heading-accent {
  font-family: var(--font-raleway);
  font-weight: var(--fw-light);
  color: var(--color-felt-gray);
  text-transform: uppercase;
  letter-spacing: 1.9px;
  font-size: clamp(16px, 2vw, 20px);
  display: inline-block;
  margin-top: var(--sp-2);
}

.manifesto-body {
  max-width: 540px;
}

.manifesto-body p {
  font-size: var(--text-body);
  font-weight: var(--fw-regular);
  line-height: 1.6;
  color: var(--color-inkstone);
  margin-bottom: var(--sp-4);
}

.manifesto-accent {
  font-family: var(--font-roobert) !important;
  font-size: var(--text-subheading) !important;
  font-weight: var(--fw-regular) !important;
  color: var(--color-obsidian) !important;
  margin-top: var(--sp-6) !important;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  line-height: 1.2 !important;
}

/* ---------- Features ---------- */
.features {
  background: var(--color-paper);
  color: var(--color-obsidian);
  padding: var(--sp-24) 0;
}

.features-heading {
  font-family: var(--font-roobert);
  font-size: clamp(32px, 6vw, 78px);
  font-weight: var(--fw-light);
  line-height: 1.05;
  color: inherit;
  letter-spacing: -0.04em;
  margin-bottom: var(--sp-12);
  max-width: 900px;
}

.features-heading-mute {
  color: var(--color-felt-gray);
}

.feature-list {
  display: flex;
  flex-direction: column;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: var(--sp-5) 0;
  border-top: 1px solid rgba(0, 0, 0, 0.12);
  transition: padding-left var(--dur-fast) var(--ease-out);
  border-radius: 0;
}

.feature-item:last-child {
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
}

.feature-item:hover { padding-left: var(--sp-4); }

.feature-row {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: var(--sp-5);
  flex: 1;
  max-width: 800px;
}

.feature-number {
  font-family: var(--font-roobert);
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  color: var(--color-felt-gray);
  padding-top: 6px;
  letter-spacing: 1.5px;
}

.feature-title {
  font-family: var(--font-roobert);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: var(--fw-regular);
  line-height: 1.15;
  color: inherit;
  margin-bottom: var(--sp-2);
  letter-spacing: -0.02em;
  transition: color var(--dur-fast) var(--ease);
}

.feature-item:hover .feature-title {
  color: var(--color-felt-gray);
}

.feature-desc {
  font-size: var(--text-body-sm);
  font-weight: var(--fw-regular);
  line-height: 1.55;
  color: var(--color-felt-gray);
  max-width: 420px;
}

.feature-arrow {
  font-size: 20px;
  color: var(--color-felt-gray);
  transition: transform var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease);
  padding-top: 6px;
}

.feature-item:hover .feature-arrow {
  transform: translateX(8px);
  color: var(--color-obsidian);
}

@media (max-width: 768px) {
  .feature-row { grid-template-columns: 40px 1fr; gap: var(--sp-3); }
  .feature-item:hover { padding-left: 0; }
  .feature-arrow { display: none; }
}

/* ---------- Quote Break ---------- */
.quote-break {
  position: relative;
  background: var(--color-obsidian);
  color: var(--color-paper);
  padding: var(--sp-24) 0;
  text-align: center;
  overflow: hidden;
}

.quote-break-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.quote-break-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.1) brightness(0.25) saturate(0.5);
}

.quote-break-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
}

.quote-break-inner {
  position: relative;
  z-index: 1;
}

.quote-text {
  font-family: var(--font-roobert);
  font-size: clamp(32px, 6vw, 78px);
  font-weight: var(--fw-light);
  line-height: 1.05;
  color: inherit;
  letter-spacing: -0.04em;
}

.quote-accent {
  font-family: var(--font-raleway);
  font-weight: var(--fw-light);
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  letter-spacing: 1.9px;
  font-size: clamp(16px, 2vw, 20px);
}

/* ---------- Waitlist ---------- */
.waitlist {
  position: relative;
  overflow: hidden;
  background: var(--color-cream);
  color: var(--color-obsidian);
}

.waitlist {
  position: relative;
  background-color: var(--color-cream);
  background-image:
    radial-gradient(circle at 25% 25%, rgba(71, 112, 91, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 75% 75%, rgba(187, 128, 54, 0.04) 0%, transparent 40%);
}

.waitlist-overlay {
  position: absolute;
  inset: 0;
  background: rgba(245, 244, 238, 0.55);
  z-index: 1;
}

.waitlist-content {
  position: relative;
  z-index: 2;
  padding: var(--sp-24) var(--sp-4);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.waitlist-heading {
  font-family: var(--font-roobert);
  font-size: clamp(48px, 9vw, 94px);
  font-weight: var(--fw-light);
  line-height: 0.9;
  color: inherit;
  letter-spacing: -0.04em;
  margin-bottom: var(--sp-4);
}

.waitlist-subtext {
  font-size: clamp(14px, 1.8vw, 18px);
  font-weight: var(--fw-light);
  color: var(--color-felt-gray);
  max-width: 420px;
  margin-bottom: var(--sp-8);
  line-height: 1.6;
}

.waitlist-form {
  width: 100%;
  max-width: 480px;
  margin-bottom: var(--sp-4);
}

.waitlist-input-wrap {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  background: var(--color-paper);
  border: 1px solid var(--color-obsidian);
  border-radius: var(--radius-inputs);
  padding: var(--sp-2) var(--sp-2) var(--sp-2) var(--sp-4);
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.waitlist-input-wrap:focus-within {
  border-color: var(--color-felt-gray);
  background: var(--color-paper);
}

.waitlist-input-wrap.is-error {
  border-color: var(--color-iridescent-fade);
}

.waitlist-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-roobert);
  font-size: var(--text-body);
  font-weight: var(--fw-regular);
  color: var(--color-obsidian);
  padding: var(--sp-3) 0;
}

.waitlist-input::placeholder {
  color: var(--color-ash-mist);
}

.waitlist-error {
  min-height: 20px;
  margin-top: var(--sp-2);
  font-family: var(--font-roobert);
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  letter-spacing: 0.5px;
  color: var(--color-iridescent-fade);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.waitlist-error.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.waitlist-submit {
  flex-shrink: 0;
  font-size: var(--text-caption);
  padding: 8px 20px;
}

.waitlist-success {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-5) 0;
}

.waitlist-success.is-visible {
  display: flex;
  animation: successReveal 0.8s var(--ease-out);
}

@keyframes successReveal {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.waitlist-success-text {
  font-family: var(--font-roobert);
  font-size: var(--text-heading-lg);
  font-weight: var(--fw-light);
  color: var(--color-obsidian);
  letter-spacing: -0.04em;
}

.waitlist-success-sub {
  font-family: var(--font-roobert);
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-felt-gray);
}

.waitlist-note {
  font-family: var(--font-roobert);
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-felt-gray);
}

@media (max-width: 768px) {
  .waitlist-input-wrap { flex-direction: column; align-items: stretch; padding: var(--sp-3); }
  .waitlist-submit { width: 100%; }
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-obsidian);
  color: var(--color-paper);
  padding: var(--sp-8) 0 var(--sp-5);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-inner {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--sp-8);
}

.footer-brand {
  font-family: var(--font-roobert);
  font-size: var(--text-subheading);
  font-weight: var(--fw-regular);
  color: inherit;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-2);
}

.footer-tagline {
  font-family: var(--font-roobert);
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: inherit;
  opacity: 0.55;
}

.footer-links {
  display: flex;
  gap: var(--sp-4);
}

.footer-links a {
  font-family: var(--font-roobert);
  font-size: var(--text-caption);
  font-weight: var(--fw-regular);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: inherit;
  opacity: 0.55;
  transition: opacity var(--dur-fast) var(--ease);
}

.footer-links a:hover { opacity: 1; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--sp-4);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-copyright,
.footer-meta {
  font-family: var(--font-roobert);
  font-size: 11px;
  font-weight: var(--fw-regular);
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: inherit;
  opacity: 0.55;
}

@media (max-width: 768px) {
  .footer-top { flex-direction: column; gap: var(--sp-5); }
  .footer-bottom { flex-direction: column; gap: var(--sp-2); text-align: center; }
  .footer-links { flex-wrap: wrap; gap: var(--sp-2) var(--sp-4); }
}

/* ---------- Scroll Reveal ---------- */
.scroll-reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.scroll-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-up {
  opacity: 0;
  transform: translateY(30px);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  :root {
    --text-body: 16px;
    --leading-body: 1.45;
    --text-body-sm: 14px;
    --container-pad: 16px;
    --section-gap: 32px;
    --card-padding: 24px;
  }

  body { font-size: var(--text-body); line-height: var(--leading-body); }

  .section-inner { padding: 0 var(--container-pad); }

  /* Hero */
  .hero { min-height: 520px; }
  .hero-content { padding: 0 var(--container-pad); max-width: 100%; }
  .hero-eyebrow { font-size: 10px; letter-spacing: 1.4px; margin-bottom: var(--sp-3); }
  .hero-title { font-size: clamp(42px, 12vw, 64px); line-height: 0.98; margin-bottom: var(--sp-3); }
  .hero-subtitle { font-size: 15px; max-width: 340px; line-height: 1.55; }
  .scroll-indicator { width: 58px; height: 58px; bottom: var(--sp-3); left: var(--sp-3); }
  .scroll-indicator-text { font-size: 5.5px; }

  /* Marquee */
  .marquee { padding: var(--sp-2) 0; }
  .marquee-track { gap: var(--sp-3); }
  .marquee-item { font-size: 10px; letter-spacing: 1.2px; }

  /* Manifesto */
  .manifesto-inner { padding-top: var(--sp-16); padding-bottom: var(--sp-16); }
  .manifesto-heading { font-size: clamp(28px, 7vw, 48px); line-height: 1.05; margin-bottom: var(--sp-6); max-width: 100%; }
  .manifesto-heading-accent { font-size: 13px; letter-spacing: 1.4px; margin-top: var(--sp-2); }
  .manifesto-body { max-width: 100%; }
  .manifesto-body p { font-size: var(--text-body); line-height: 1.6; margin-bottom: var(--sp-3); }
  .manifesto-accent { font-size: 18px !important; letter-spacing: 1.2px; margin-top: var(--sp-4) !important; }

  /* Features */
  .features { padding: var(--sp-16) 0; }
  .features-heading { font-size: clamp(28px, 7vw, 48px); line-height: 1.05; margin-bottom: var(--sp-8); max-width: 100%; }
  .feature-item { padding: var(--sp-4) 0; }
  .feature-row { grid-template-columns: 36px 1fr; gap: var(--sp-3); max-width: 100%; }
  .feature-number { font-size: 10px; padding-top: 4px; }
  .feature-title { font-size: clamp(18px, 4vw, 22px); margin-bottom: var(--sp-1); }
  .feature-desc { font-size: var(--text-body-sm); line-height: 1.55; max-width: 100%; }
  .feature-item:hover { padding-left: 0; }
  .feature-arrow { display: none; }

  /* Quote */
  .quote-break { padding: var(--sp-16) 0; }
  .quote-text { font-size: clamp(26px, 7vw, 44px); line-height: 1.08; }
  .quote-accent { font-size: 13px; letter-spacing: 1.4px; }

  /* Waitlist */
  .waitlist-content { padding: var(--sp-16) var(--container-pad); }
  .waitlist-heading { font-size: clamp(36px, 10vw, 56px); line-height: 0.95; margin-bottom: var(--sp-3); }
  .waitlist-subtext { font-size: 15px; max-width: 100%; margin-bottom: var(--sp-6); line-height: 1.55; }
  .waitlist-form { max-width: 100%; }
  .waitlist-input-wrap { flex-direction: column; align-items: stretch; gap: var(--sp-3); padding: var(--sp-3); }
  .waitlist-input { font-size: 16px; padding: var(--sp-2) 0; }
  .waitlist-submit { width: 100%; padding: 12px 20px; font-size: 12px; }
  .waitlist-success-text { font-size: clamp(36px, 10vw, 56px); }
  .waitlist-note { font-size: 10px; letter-spacing: 1.2px; }

  /* Footer */
  .footer { padding: var(--sp-6) 0 var(--sp-4); }
  .footer-top { flex-direction: column; gap: var(--sp-4); margin-bottom: var(--sp-6); }
  .footer-brand { font-size: 24px; }
  .footer-tagline { font-size: 10px; }
  .footer-links { flex-wrap: wrap; gap: var(--sp-2) var(--sp-4); }
  .footer-links a { font-size: 10px; letter-spacing: 1.2px; }
  .footer-bottom { flex-direction: column; gap: var(--sp-2); text-align: center; }
  .footer-copyright, .footer-meta { font-size: 10px; }
}

@media (max-width: 480px) {
  :root { --container-pad: 14px; }

  .hero { min-height: 480px; }
  .hero-title { font-size: 40px; }
  .hero-subtitle { font-size: 14px; max-width: 280px; }
  .scroll-indicator { width: 50px; height: 50px; }

  .manifesto-heading,
  .features-heading,
  .quote-text { font-size: 26px; }

  .waitlist-heading { font-size: 34px; }
  .waitlist-success-text { font-size: 34px; }
  .manifesto-accent { font-size: 16px !important; }
  .feature-title { font-size: 17px; }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .scroll-indicator, .marquee-track { animation: none; }
  .grain-overlay { animation: none; }
}