/* ============================================================
   gsiso.ai — design system
   Palette derived from logo: electric blue → cyan → violet on
   deep space navy. Dark-first; light mode is a companion.
   ============================================================ */

:root,
[data-theme="dark"] {
  /* Type scale — fluid */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 7.5rem);

  /* Spacing — 4px base */
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem; --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Surfaces — deep space */
  --color-bg: #05070f;
  --color-surface: #0a0d1a;
  --color-surface-2: #10142a;
  --color-surface-3: #161b35;
  --color-border: #1e2446;
  --color-border-strong: #2a3163;
  --color-divider: #141833;

  /* Text */
  --color-text: #e6e9f5;
  --color-text-muted: #9aa1c4;
  --color-text-faint: #5c638a;
  --color-text-inverse: #05070f;

  /* Accents — from logo */
  --color-primary: #3b7cff;    /* electric blue */
  --color-primary-hover: #5a93ff;
  --color-accent-cyan: #3ad1e0;
  --color-accent-violet: #8a5bff;
  --color-accent-magenta: #b45bff;

  /* Gradient tokens */
  --gradient-brand: linear-gradient(135deg, #3b7cff 0%, #3ad1e0 45%, #8a5bff 100%);
  --gradient-brand-soft: linear-gradient(135deg, rgba(59,124,255,.18), rgba(138,91,255,.18));
  --gradient-text: linear-gradient(90deg, #5a93ff 0%, #3ad1e0 50%, #b45bff 100%);
  --gradient-border: linear-gradient(135deg, rgba(59,124,255,.5), rgba(58,209,224,.35), rgba(138,91,255,.5));

  /* Effects */
  --glow-primary: 0 0 40px rgba(59, 124, 255, 0.35);
  --glow-violet: 0 0 40px rgba(138, 91, 255, 0.35);
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 8px 24px rgba(0,0,0,.45);
  --shadow-lg: 0 24px 60px rgba(0,0,0,.55);

  /* Transitions */
  --t: 220ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 720px;
  --content-default: 1080px;
  --content-wide: 1240px;

  /* Fonts */
  --font-display: "Clash Display", "Satoshi", system-ui, sans-serif;
  --font-body: "Satoshi", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

img, svg, canvas { display: block; max-width: 100%; height: auto; }
button { background: none; border: none; cursor: pointer; font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
input, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

::selection { background: rgba(138, 91, 255, 0.35); color: #fff; }

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   Background — animated mesh + noise overlay
   ============================================================ */
#mesh-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse 80% 60% at 20% 0%, rgba(59,124,255,.18), transparent 60%),
    radial-gradient(ellipse 60% 50% at 85% 30%, rgba(138,91,255,.16), transparent 60%),
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(58,209,224,.10), transparent 60%),
    var(--color-bg);
}
.noise {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================================================
   Utility
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-10));
}
.container--narrow { max-width: var(--content-narrow); }

.grad {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  background: var(--gradient-brand-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-weight: 500;
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
  transition: all var(--t);
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn--sm { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); }
.btn--lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }

.btn--primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 0 0 1px rgba(255,255,255,.08) inset, 0 8px 24px rgba(59,124,255,.25);
  position: relative;
}
.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 0 1px rgba(255,255,255,.15) inset, 0 16px 40px rgba(138,91,255,.35);
}

.btn--ghost {
  border-color: var(--color-border-strong);
  color: var(--color-text);
  background: rgba(255,255,255,.02);
}
.btn--ghost:hover {
  border-color: var(--color-primary);
  background: rgba(59,124,255,.08);
}

/* ============================================================
   Nav
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5, 7, 15, 0.65);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.nav__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-4) clamp(var(--space-5), 4vw, var(--space-10));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
  letter-spacing: -0.01em;
  color: var(--color-text);
}
.logo__mark {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  object-fit: cover;
  object-position: center;
  box-shadow: 0 6px 20px rgba(59, 124, 255, 0.28);
  background: #3b7cff;
}
.foot .logo__mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}
.logo__word { display: inline-block; }
.logo__dot {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.nav__links {
  display: flex;
  gap: var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.nav__links a { transition: color var(--t); }
.nav__links a:hover { color: var(--color-text); }
@media (max-width: 820px) {
  .nav__links { display: none; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: clamp(var(--space-16), 10vw, var(--space-32)) 0 var(--space-20);
  overflow: hidden;
}
.hero__inner {
  width: 100%;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-10));
  position: relative;
  z-index: 1;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: rgba(10, 13, 26, 0.5);
  margin-bottom: var(--space-8);
}
.eyebrow__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #3ad1e0;
  box-shadow: 0 0 10px #3ad1e0, 0 0 20px rgba(58,209,224,.5);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  50% { opacity: .4; transform: scale(.85); }
}

.hero__title {
  font-size: var(--text-hero);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-8);
  max-width: 20ch;
}
.hero__title em {
  font-style: normal;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 58ch;
  margin-bottom: var(--space-10);
  line-height: 1.5;
}
.hero__sub strong { color: var(--color-text); font-weight: 500; }

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-16);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  max-width: 720px;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}
.hero__stats div {
  display: flex; flex-direction: column; gap: var(--space-1);
}
.hero__stats strong {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -0.02em;
}
.hero__stats span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
@media (max-width: 640px) {
  .hero__stats { grid-template-columns: 1fr; gap: var(--space-5); }
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-10);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-text-faint);
}
.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-text-faint), transparent);
  animation: scroll-ind 2.2s ease-in-out infinite;
}
@keyframes scroll-ind {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================================
   Sections
   ============================================================ */
.section {
  padding: clamp(var(--space-20), 12vw, var(--space-32)) 0;
  position: relative;
}
.section__head { margin-bottom: var(--space-16); max-width: 820px; }
.section__title {
  font-size: var(--text-2xl);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-5);
}
.section__lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  line-height: 1.5;
}

/* ============================================================
   Thesis
   ============================================================ */
.thesis-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
  margin-bottom: var(--space-16);
}
.thesis-card {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: all var(--t);
}
.thesis-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-brand-soft);
  opacity: 0;
  transition: opacity var(--t);
  pointer-events: none;
}
.thesis-card:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
}
.thesis-card:hover::before { opacity: 1; }
.thesis-card__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent-cyan);
  margin-bottom: var(--space-4);
  letter-spacing: 0.08em;
}
.thesis-card h3 {
  font-size: var(--text-lg);
  font-family: var(--font-display);
  font-weight: 600;
  margin-bottom: var(--space-3);
  position: relative;
}
.thesis-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  position: relative;
}

.pullquote {
  margin-top: var(--space-12);
  padding: var(--space-10);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  line-height: 1.25;
  color: var(--color-text);
  text-wrap: balance;
  border-left: 2px solid transparent;
  border-image: var(--gradient-border) 1;
  background: linear-gradient(90deg, rgba(59,124,255,.05), transparent 80%);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  max-width: 900px;
}
.pullquote em { font-style: italic; background: var(--gradient-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.pullquote cite {
  display: block;
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ============================================================
   Platform pillars
   ============================================================ */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-5);
}
.pillar {
  --c: hsl(var(--pillar-hue), 80%, 65%);
  position: relative;
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--t);
}
.pillar::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 120% 80% at 0% 0%,
    hsl(var(--pillar-hue), 70%, 55%, .12), transparent 55%);
  opacity: 0.7;
  transition: opacity var(--t);
  pointer-events: none;
}
.pillar:hover { border-color: var(--color-border-strong); transform: translateY(-3px); }
.pillar:hover::before { opacity: 1; }
.pillar__icon {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  border-radius: var(--radius-md);
  background: hsl(var(--pillar-hue), 60%, 50%, .12);
  color: hsl(var(--pillar-hue), 90%, 70%);
  margin-bottom: var(--space-5);
  position: relative;
  border: 1px solid hsl(var(--pillar-hue), 60%, 50%, .25);
}
.pillar__num {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.08em;
}
.pillar h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
  position: relative;
}
.pillar p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-5);
  position: relative;
}
.pillar__tags {
  display: flex; flex-wrap: wrap; gap: var(--space-2);
  list-style: none;
  position: relative;
}
.pillar__tags li {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  background: rgba(255,255,255,.02);
}
.pillar--feature {
  grid-column: span 2;
  background: linear-gradient(135deg, rgba(59,124,255,.08), rgba(138,91,255,.08));
  border: 1px solid transparent;
  background-clip: padding-box;
  position: relative;
}
.pillar--feature::after {
  content: "";
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  background: var(--gradient-border);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}
.pillar--feature h3 { font-size: var(--text-xl); }
@media (max-width: 900px) {
  .pillar--feature { grid-column: span 1; }
}

/* ============================================================
   Industries
   ============================================================ */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-5);
}
.industry {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--t);
  position: relative;
  overflow: hidden;
}
.industry::after {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 3px; height: 100%;
  background: var(--gradient-brand);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--t);
}
.industry:hover { border-color: var(--color-border-strong); transform: translateY(-2px); }
.industry:hover::after { transform: scaleY(1); }
.industry__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent-cyan);
  margin-bottom: var(--space-4);
}
.industry h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
  line-height: 1.2;
}
.industry p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}
.industry__metric {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}
.industry__metric span {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-right: var(--space-2);
}

/* ============================================================
   Demo
   ============================================================ */
.demo-wrap {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 520px;
  position: relative;
}
@media (max-width: 900px) {
  .demo-wrap { grid-template-columns: 1fr; min-height: auto; }
}
.demo-stage {
  position: relative;
  background:
    radial-gradient(ellipse 80% 60% at 50% 50%, rgba(59,124,255,.08), transparent 70%),
    var(--color-surface-2);
  min-height: 520px;
  overflow: hidden;
}
#demo-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.demo-stage__overlay {
  position: absolute;
  top: var(--space-6);
  left: var(--space-6);
  z-index: 2;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.demo-stage__label {
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text);
  background: rgba(5, 7, 15, 0.7);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  backdrop-filter: blur(8px);
}
.demo-log {
  padding: var(--space-6);
  background: var(--color-surface);
  border-left: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.demo-log__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.demo-log__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #3ad1e0;
  box-shadow: 0 0 10px #3ad1e0;
  animation: pulse 1.5s ease-in-out infinite;
}
.demo-log ol {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
  overflow-y: auto;
  min-height: 0;
  max-height: 420px;
}
.demo-log li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  font-size: 12px;
  line-height: 1.5;
  color: var(--color-text-muted);
  animation: log-in .4s ease-out;
}
.demo-log li.fresh { color: var(--color-text); }
.demo-log li .t {
  color: var(--color-text-faint);
  font-variant-numeric: tabular-nums;
}
.demo-log li .agent { color: var(--color-accent-cyan); }
.demo-log li .msg { color: var(--color-text-muted); }
.demo-log li.fresh .msg { color: var(--color-text); }
@keyframes log-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

/* ============================================================
   Roadmap
   ============================================================ */
.timeline {
  list-style: none;
  position: relative;
  padding-left: var(--space-10);
  max-width: 920px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(to bottom,
    var(--color-primary) 0%,
    var(--color-accent-cyan) 50%,
    var(--color-accent-violet) 100%);
  opacity: 0.4;
}
.timeline__item {
  position: relative;
  padding-bottom: var(--space-10);
}
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 6px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-primary);
  box-shadow: 0 0 0 4px rgba(59,124,255,.1);
}
.timeline__item--final::before {
  background: var(--gradient-brand);
  border-color: transparent;
  box-shadow: 0 0 20px rgba(138,91,255,.6), 0 0 0 4px rgba(138,91,255,.15);
}
.timeline__year {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent-cyan);
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}
.timeline__body h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}
.timeline__body p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 62ch;
  line-height: 1.6;
}
.timeline__item--final .timeline__body h3 {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ============================================================
   Manifesto
   ============================================================ */
.section--manifesto { text-align: left; }
.section--manifesto .section__title { font-size: var(--text-2xl); margin-bottom: var(--space-10); }
.manifesto-body {
  font-size: var(--text-lg);
  line-height: 1.55;
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.manifesto-body p { color: var(--color-text-muted); max-width: 64ch; }
.manifesto-body strong { color: var(--color-text); font-weight: 500; }
.manifesto-body em { font-style: italic; color: var(--color-accent-cyan); }
.manifesto-sig {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  letter-spacing: 0.06em;
  margin-top: var(--space-6);
}

/* ============================================================
   Contact
   ============================================================ */
.contact-card {
  padding: clamp(var(--space-8), 5vw, var(--space-16));
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid transparent;
  position: relative;
}
.contact-card::after {
  content: "";
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  background: var(--gradient-border);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}
.contact-form {
  margin-top: var(--space-10);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.contact-form label span {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}
.contact-form input,
.contact-form textarea,
.contact-form select {
  padding: var(--space-4);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--text-sm);
  transition: all var(--t);
  font-family: inherit;
}
.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-surface-3);
  box-shadow: 0 0 0 3px rgba(59,124,255,.15);
}
.contact-form textarea { resize: vertical; min-height: 110px; }
.contact-form button { align-self: flex-start; margin-top: var(--space-2); }
.form-foot {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-3);
}
.form-foot.success { color: #3ad1e0; }

/* ============================================================
   Footer
   ============================================================ */
.foot {
  padding: var(--space-16) 0 var(--space-10);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}
.foot__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  align-items: center;
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.foot__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text);
}
.foot__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ============================================================
   Scroll reveal
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}