/* ============================================
   VECT.XYZ — Financial Logistics Infrastructure
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--canvas);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* === DESIGN TOKENS === */
:root {
  /* Colors */
  --canvas: #0A0A0F;
  --surface: #12121A;
  --border: #1E1E2E;
  --text-primary: #E8E8ED;
  --text-muted: #6B6B7B;
  --accent: #00E5A0;
  --accent-glow: rgba(0, 229, 160, 0.2);
  --accent-glow-strong: rgba(0, 229, 160, 0.35);
  --signal-red: #FF3B5C;

  /* Typography */
  --font-display: 'JetBrains Mono', monospace;
  --font-body: 'General Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing scale (8px base) */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 72px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 150ms var(--ease-out);
  --transition-base: 250ms var(--ease-out);
  --transition-slow: 400ms var(--ease-out);
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); }
h4 { font-size: 1rem; }

p {
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 65ch;
}

a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent);
}

code, pre {
  font-family: var(--font-display);
  font-size: 0.875rem;
}

pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-md);
  overflow-x: auto;
  line-height: 1.8;
}

code {
  color: var(--accent);
}

/* === UTILITIES === */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-4xl) 0;
}

.section-title {
  margin-bottom: var(--space-xl);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.75rem 1.75rem;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.btn--primary {
  background: var(--accent);
  color: var(--canvas);
}

.btn--primary:hover {
  color: var(--canvas);
  box-shadow: 0 0 24px var(--accent-glow), 0 0 48px var(--accent-glow);
  transform: translateY(-1px);
}

.btn--lg {
  padding: 1rem 2.25rem;
  font-size: 1rem;
}

/* === NAV === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  transition: all var(--transition-base);
}

.nav--scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-primary);
}

.nav__logo:hover {
  color: var(--accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__links a:not(.btn) {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  position: relative;
}

.nav__links a:not(.btn)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition-base);
}

.nav__links a:not(.btn):hover {
  color: var(--text-primary);
}

.nav__links a:not(.btn):hover::after {
  width: 100%;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-base);
}

/* === FOOTER === */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer__brand {
  max-width: 320px;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  display: inline-block;
  margin-bottom: var(--space-sm);
}

.footer__desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer__heading {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.footer__link-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer__link-list a {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer__link-list a:hover {
  color: var(--accent);
}

.footer__bottom {
  border-top: 1px solid var(--border);
  padding-top: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__legal {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer__social {
  display: flex;
  gap: var(--space-sm);
}

.footer__social a {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.footer__social a:hover {
  color: var(--accent);
}

/* === HERO === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  background: radial-gradient(ellipse at center, transparent 0%, var(--canvas) 75%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-lg);
  max-width: 800px;
}

.hero__title {
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.hero__title .dud {
  color: var(--accent);
  opacity: 0.5;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  margin: 0 auto var(--space-xl);
  max-width: 600px;
}

/* === SOCIAL PROOF BAR === */
.proof-bar {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.proof-bar__grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3xl);
}

.proof-bar__stat {
  text-align: center;
}

.proof-bar__number {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.proof-bar__suffix {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
  color: var(--text-muted);
}

.proof-bar__label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* === FEATURES GRID === */
.features {
  padding: var(--space-4xl) 0;
}

.features__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.feature-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 32px var(--accent-glow);
}

.feature-card__number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
  margin-bottom: var(--space-md);
  line-height: 1;
}

.feature-card__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.feature-card__desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* === GLOWING STARS GRID === */
.feature-card__stars {
  display: grid;
  grid-template-columns: repeat(18, 1fr);
  gap: 1px;
  height: 10rem;
  padding: 4px;
  margin-bottom: var(--space-md);
}

.feature-card__star {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.feature-card__dot {
  width: 1px;
  height: 1px;
  border-radius: 50%;
  background: #666;
  position: relative;
  z-index: 2;
  transition: transform 2s ease-in-out, background 2s ease-in-out;
}

.feature-card__dot--glow {
  transform: scale(2.5);
  background: #fff;
}

.feature-card__glow {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  filter: blur(1px);
  box-shadow: 0 0 8px var(--accent-glow);
  opacity: 0;
  z-index: 1;
  transition: opacity 2s ease-in-out;
}

.feature-card__glow--active {
  opacity: 1;
}

/* === PIPELINE (HOW IT WORKS) === */
.pipeline {
  padding: var(--space-4xl) 0;
}

.pipeline__track {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-top: var(--space-2xl);
  padding: 0 var(--space-lg);
}

.pipeline__line {
  position: absolute;
  top: 24px;
  left: calc(var(--space-lg) + 24px);
  right: calc(var(--space-lg) + 24px);
  height: 2px;
  background: var(--border);
  z-index: 0;
}

.pipeline__line-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width 0.1s linear;
}

.pipeline__step {
  position: relative;
  z-index: 1;
  text-align: center;
  flex: 1;
  max-width: 240px;
}

.pipeline__node {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--canvas);
  margin: 0 auto var(--space-md);
  transition: all var(--transition-base);
}

.pipeline__node--active {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
}

.pipeline__step h3 {
  font-size: 1rem;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.pipeline__step p {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 200px;
  margin: 0 auto;
}

/* === CTA BANNER === */
.cta-banner {
  padding: var(--space-4xl) 0;
  text-align: center;
  border-top: 1px solid var(--border);
}

.cta-banner h2 {
  margin-bottom: var(--space-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 16px var(--accent-glow); }
  50% { box-shadow: 0 0 32px var(--accent-glow-strong), 0 0 48px var(--accent-glow); }
}

.cta-banner .btn--primary {
  animation: glow-pulse 3s ease-in-out infinite;
}

/* === PRODUCT PAGE === */
.product-hero {
  padding: calc(var(--nav-height) + var(--space-4xl)) 0 var(--space-3xl);
  text-align: center;
}

.product-hero p {
  margin: var(--space-md) auto 0;
  max-width: 600px;
}

/* Architecture Diagram */
.architecture {
  padding: var(--space-3xl) 0;
}

.arch-diagram {
  position: relative;
  max-width: 1000px;
  margin: var(--space-xl) auto 0;
  padding-bottom: var(--space-3xl);
}

.arch-diagram__svg {
  display: block;
  width: 100%;
}

.arch-diagram__badge-text {
  fill: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 4.5px;
}

.arch-diagram__badge-text--sm {
  font-size: 3.8px;
}

/* Connector paths -- draw-in animation */
.arch-diagram__path {
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  transition: stroke-dashoffset 1s cubic-bezier(0.25, 0.1, 0.5, 1);
}

.arch-diagram.is-visible .arch-diagram__path {
  stroke-dashoffset: 0;
}

/* Light orbs */
.arch-diagram__orb {
  animation: arch-orb-travel 4s cubic-bezier(0, 0, 0.2, 1) 1s infinite;
  animation-play-state: paused;
}

.arch-diagram__orb--1 {
  offset-path: path("M 30 10 v 15 q 0 5 5 5 h 60 q 5 0 5 5 v 25");
}

.arch-diagram__orb--2 {
  offset-path: path("M 72 10 v 10 q 0 5 5 5 h 18 q 5 0 5 5 v 25");
}

.arch-diagram__orb--3 {
  offset-path: path("M 128 10 v 10 q 0 5 -5 5 h -18 q -5 0 -5 5 v 25");
}

.arch-diagram__orb--4 {
  offset-path: path("M 170 10 v 15 q 0 5 -5 5 h -60 q -5 0 -5 5 v 25");
}

.arch-diagram.is-visible .arch-diagram__orb {
  animation-play-state: running;
}

/* Bottom SVG overlap */
.arch-diagram__svg--bottom {
  margin-top: -28%;
}

/* Bottom trunk orb offset-paths */
.arch-diagram__orb-b--l {
  offset-path: path("M 100 5 v 18 q 0 5 -5 5 h -35 q -5 0 -5 5 v 72 h -25 v 26 h 25 v 22 h -18 v 11");
  animation-duration: 6s;
}
.arch-diagram__orb-b--r {
  offset-path: path("M 100 5 v 18 q 0 5 5 5 h 35 q 5 0 5 5 v 57 h 5 v 15 h 24 v 18");
}

/* Bottom tiers -- hidden by default */
.arch-bottom__tier-1,
.arch-bottom__tier-2,
.arch-bottom__tier-3 {
  opacity: 0;
  transition: opacity 0.6s ease;
}

/* Staggered reveal */
.arch-diagram.is-visible .arch-bottom__tier-1 { opacity: 1; transition-delay: 0.5s; }
.arch-diagram.is-visible .arch-bottom__tier-2 { opacity: 1; transition-delay: 1s; }
.arch-diagram.is-visible .arch-bottom__tier-3 { opacity: 1; transition-delay: 1.4s; }

@keyframes arch-orb-travel {
  0% { offset-distance: 0%; }
  100% { offset-distance: 100%; }
}

/* Main box */
.arch-diagram__box {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: -26%;
}

.arch-diagram__shadow {
  position: absolute;
  bottom: -32px;
  left: 50%;
  transform: translateX(-50%);
  width: 62%;
  height: 200px;
  border-radius: 12px;
  background: var(--accent-glow-strong);
  pointer-events: none;
}

.arch-diagram__title-badge {
  position: absolute;
  top: -16px;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  color: var(--text-primary);
  white-space: nowrap;
}

.arch-diagram__inner {
  position: relative;
  z-index: 10;
  width: 100%;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.arch-diagram__pill {
  position: absolute;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: var(--text-primary);
}

.arch-diagram__pill--left {
  bottom: 64px;
  left: 80px;
}

.arch-diagram__pill--right {
  right: 120px;
}

/* Pulsing circles */
.arch-diagram__pulse {
  position: absolute;
  bottom: 0;
  left: 50%;
  border-radius: 50%;
  border-top: 1px solid var(--border);
  background: rgba(0, 229, 160, 0.03);
  transform: translateX(-50%);
}

.arch-diagram__pulse--1 {
  width: 200px;
  height: 200px;
  bottom: -28px;
  animation: arch-pulse-1 2s ease-in-out infinite;
}

.arch-diagram__pulse--2 {
  width: 290px;
  height: 290px;
  bottom: -72px;
  animation: arch-pulse-2 2s ease-in-out infinite;
}

.arch-diagram__pulse--3 {
  width: 380px;
  height: 380px;
  bottom: -116px;
  animation: arch-pulse-3 2s ease-in-out infinite;
}

.arch-diagram__pulse--4 {
  width: 470px;
  height: 470px;
  bottom: -160px;
  animation: arch-pulse-4 2s ease-in-out infinite;
}

@keyframes arch-pulse-1 {
  0%, 100% { transform: translateX(-50%) scale(0.98); }
  20% { transform: translateX(-50%) scale(1.02); }
  40% { transform: translateX(-50%) scale(0.98); }
}

@keyframes arch-pulse-2 {
  0%, 30% { transform: translateX(-50%) scale(1); }
  50% { transform: translateX(-50%) scale(0.98); }
  70% { transform: translateX(-50%) scale(1.02); }
  90%, 100% { transform: translateX(-50%) scale(0.98); }
}

@keyframes arch-pulse-3 {
  0%, 40% { transform: translateX(-50%) scale(1); }
  60% { transform: translateX(-50%) scale(0.98); }
  80% { transform: translateX(-50%) scale(1.02); }
  100% { transform: translateX(-50%) scale(0.98); }
}

@keyframes arch-pulse-4 {
  0%, 50% { transform: translateX(-50%) scale(1); }
  70% { transform: translateX(-50%) scale(0.98); }
  90% { transform: translateX(-50%) scale(1.02); }
  100% { transform: translateX(-50%) scale(0.98); }
}

/* Bottom circle */
.arch-diagram__circle {
  position: absolute;
  bottom: -48px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 30;
  width: 96px;
  height: 96px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border-top: 1px solid var(--border);
  background: var(--surface);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Feature Deep Dives */
.deep-dive {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--border);
}

.deep-dive__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.deep-dive--reverse .deep-dive__inner {
  direction: rtl;
}

.deep-dive--reverse .deep-dive__inner > * {
  direction: ltr;
}

.deep-dive__content h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.deep-dive__content p {
  font-size: 0.9375rem;
  line-height: 1.7;
}

.deep-dive__code pre {
  font-size: 0.8125rem;
  line-height: 1.9;
}

/* Integrations Grid */
.integrations {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--border);
}

.integrations__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

.integrations__item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-lg) var(--space-sm);
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  color: var(--text-primary);
  transition: all var(--transition-base);
  letter-spacing: 0.02em;
}

.integrations__item:hover {
  border-color: var(--accent);
  box-shadow: 0 0 24px var(--accent-glow);
}

.integrations__item-type {
  display: block;
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* === CONTACT PAGE === */
.contact {
  padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-3xl);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-3xl);
}

.contact__title {
  margin-bottom: var(--space-xl);
}

/* Form Styles */
.form__group {
  margin-bottom: var(--space-lg);
}

.form__label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: var(--space-sm) 0;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  outline: none;
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  border-bottom-color: var(--accent);
  box-shadow: 0 1px 0 0 var(--accent);
}

.form__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236B6B7B' d='M1.41 0L6 4.58 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0 center;
  cursor: pointer;
}

.form__select option {
  background: var(--surface);
  color: var(--text-primary);
}

.form__textarea {
  resize: vertical;
  min-height: 100px;
}

.form__error {
  font-size: 0.75rem;
  color: var(--signal-red);
  margin-top: var(--space-xs);
  display: none;
}

.form__group--error .form__input,
.form__group--error .form__select,
.form__group--error .form__textarea {
  border-bottom-color: var(--signal-red);
}

.form__group--error .form__error {
  display: block;
}

.form__success {
  display: none;
  text-align: center;
  padding: var(--space-2xl) 0;
}

.form__success--visible {
  display: block;
}

.form__success h3 {
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

/* Contact Info Sidebar */
.contact-info {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-xl);
  height: fit-content;
}

.contact-info__heading {
  font-family: var(--font-display);
  font-size: 1.125rem;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.contact-info__item {
  margin-bottom: var(--space-lg);
}

.contact-info__label {
  font-family: var(--font-display);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.contact-info__value {
  font-size: 0.9375rem;
  color: var(--text-primary);
}

.contact-info__value a {
  color: var(--accent);
}

.contact-info__quote {
  font-style: italic;
  font-size: 0.9375rem;
  color: var(--text-muted);
  border-left: 2px solid var(--accent);
  padding-left: var(--space-md);
  margin-top: var(--space-xl);
}

.contact-info__social {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.contact-info__social a {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.contact-info__social a:hover {
  color: var(--accent);
}

/* === ABOUT PAGE === */
.about-hero {
  padding: calc(var(--nav-height) + var(--space-4xl)) 0 var(--space-3xl);
  max-width: 800px;
  margin: 0 auto;
}

.about-hero h1 {
  font-size: clamp(2.25rem, 5.5vw, 4rem);
  margin-bottom: var(--space-md);
}

.about-hero__subtitle {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: var(--text-muted);
  max-width: 55ch;
  line-height: 1.7;
}

.about-section {
  padding: var(--space-4xl) 0;
}

.about-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-lg);
}

.about-narrative {
  max-width: 700px;
  margin: 0 auto;
}

.about-narrative p {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 65ch;
  margin-bottom: var(--space-lg);
}

.about-narrative p:last-child {
  margin-bottom: 0;
}

.about-pullquote {
  max-width: 700px;
  margin: 0 auto;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  line-height: 1.6;
  color: var(--text-primary);
  border-left: 3px solid var(--accent);
  padding-left: var(--space-lg);
}

.about-stats {
  max-width: 700px;
  margin: var(--space-xl) auto 0;
  display: flex;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-stats--2up {
  max-width: 460px;
}

.about-stats__item {
  text-align: center;
  flex: 1;
}

.about-stats__number {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.about-stats__label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

.about-belief {
  font-family: var(--font-body);
  font-size: clamp(1.25rem, 3vw, 2rem) !important;
  font-weight: 600;
  color: var(--text-primary) !important;
  line-height: 1.4 !important;
  max-width: 55ch !important;
}

/* === ANIMATION HELPERS === */
.reveal {
  opacity: 0;
  transform: translateY(24px);
}

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

/* === FOCUS STATES === */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn:focus-visible {
  outline-offset: 4px;
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .arch-diagram__path {
    stroke-dashoffset: 0 !important;
  }

  .arch-diagram__orb {
    display: none;
  }

  .arch-bottom__tier-1,
  .arch-bottom__tier-2,
  .arch-bottom__tier-3 {
    opacity: 1 !important;
  }
}

/* === RESPONSIVE: TABLET (768px) === */
@media (max-width: 768px) {
  /* Nav */
  .nav__toggle {
    display: flex;
  }

  .nav__links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
  }

  .nav__links--open {
    display: flex;
  }

  .nav__toggle--active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav__toggle--active span:nth-child(2) {
    opacity: 0;
  }

  .nav__toggle--active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  /* Hero */
  .hero__title {
    font-size: clamp(1.75rem, 6vw, 2.5rem);
  }

  .hero__subtitle {
    font-size: 1rem;
  }

  /* Features */
  .features__grid {
    grid-template-columns: 1fr;
  }

  /* Pipeline */
  .pipeline__track {
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
    padding: 0;
  }

  .pipeline__line {
    top: 24px;
    bottom: 24px;
    left: 50%;
    right: auto;
    width: 2px;
    height: calc(100% - 48px);
    transform: translateX(-50%);
  }

  .pipeline__line-fill {
    width: 100% !important;
    height: 0%;
  }

  .pipeline__step {
    max-width: 100%;
  }

  /* Proof bar */
  .proof-bar__grid {
    flex-direction: column;
    gap: var(--space-xl);
  }

  /* Product page */
  .arch-diagram {
    max-width: 700px;
  }

  .arch-diagram__inner {
    height: 220px;
  }

  .arch-diagram__pill--right {
    display: none;
  }

  .arch-diagram__pill--left {
    bottom: 48px;
    left: 48px;
  }

  .arch-diagram__pulse--3,
  .arch-diagram__pulse--4 {
    display: none;
  }

  .arch-diagram__circle {
    width: 80px;
    height: 80px;
    font-size: 0.875rem;
    bottom: -40px;
  }

  .deep-dive__inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .deep-dive--reverse .deep-dive__inner {
    direction: ltr;
  }

  .integrations__grid {
    grid-template-columns: 1fr 1fr;
  }

  /* About page */
  .about-stats {
    flex-direction: column;
    gap: var(--space-lg);
  }

  /* Contact page */
  .contact__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  /* Footer */
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}

/* === RESPONSIVE: MOBILE (480px) === */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-sm);
  }

  .section {
    padding: var(--space-2xl) 0;
  }

  .hero {
    min-height: 85vh;
  }

  .hero__content {
    padding: var(--space-sm);
  }

  .btn--lg {
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
    width: 100%;
  }

  .feature-card {
    padding: var(--space-lg);
  }

  .integrations__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xs);
  }

  .integrations__item {
    padding: var(--space-sm) var(--space-xs);
    font-size: 0.75rem;
  }

  .arch-diagram {
    max-width: 100%;
  }

  .arch-diagram__title-badge {
    font-size: 0.6875rem;
    padding: 4px 12px;
  }

  .arch-diagram__inner {
    height: 180px;
  }

  .arch-diagram__pill {
    font-size: 0.75rem;
    height: 32px;
    padding: 0 12px;
  }

  .arch-diagram__pill--left {
    left: 24px;
    bottom: 32px;
  }

  .arch-diagram__circle {
    width: 64px;
    height: 64px;
    font-size: 0.75rem;
    bottom: -32px;
  }

  .arch-diagram__pulse--1 {
    width: 140px;
    height: 140px;
  }

  .arch-diagram__pulse--2 {
    width: 200px;
    height: 200px;
  }

  pre {
    font-size: 0.75rem;
    padding: var(--space-sm);
  }

  .about-hero {
    padding-left: var(--space-sm);
    padding-right: var(--space-sm);
  }

  .about-section {
    padding: var(--space-2xl) 0;
  }
}