@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --color-bg: oklch(0.13 0.01 25);
  --color-surface: #232532;
  --color-text: #e9e9ed;
  --color-divider: color-mix(in srgb, #e9e9ed 16%, transparent);

  --color-neutral-100: #f3f5fe;
  --color-neutral-200: #e4e7f5;
  --color-neutral-300: #cfd3e5;
  --color-neutral-400: #b2b6ca;
  --color-neutral-500: #9397ab;
  --color-neutral-600: #75798c;
  --color-neutral-700: #595d6c;
  --color-neutral-800: #3f424d;
  --color-neutral-900: #292b31;

  --color-accent: oklch(0.62 0.21 25);
  --color-accent-100: oklch(0.94 0.02 25);
  --color-accent-200: oklch(0.88 0.05 25);
  --color-accent-300: oklch(0.78 0.11 25);
  --color-accent-400: oklch(0.70 0.16 25);
  --color-accent-500: oklch(0.62 0.21 25);
  --color-accent-600: oklch(0.54 0.20 25);
  --color-accent-700: oklch(0.42 0.17 25);
  --color-accent-800: oklch(0.30 0.12 25);
  --color-accent-900: oklch(0.20 0.08 25);

  --color-accent-2-100: oklch(0.94 0.02 25);
  --color-accent-2-200: oklch(0.88 0.05 25);
  --color-accent-2-300: oklch(0.78 0.11 25);
  --color-accent-2-400: oklch(0.70 0.16 25);
  --color-accent-2-500: oklch(0.62 0.21 25);
  --color-accent-2-600: oklch(0.54 0.20 25);
  --color-accent-2-700: oklch(0.42 0.17 25);
  --color-accent-2-800: oklch(0.30 0.12 25);
  --color-accent-2-900: oklch(0.20 0.08 25);

  --color-term-green: oklch(0.78 0.19 150);
  --color-term-green-dim: oklch(0.50 0.13 150);

  --font-heading: "Inter", system-ui, sans-serif;
  --font-heading-weight: 500;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", "Courier New", monospace;

  --space-1: 2.8px;
  --space-2: 5.6px;
  --space-3: 8.4px;
  --space-4: 11.2px;
  --space-5: 14px;
  --space-6: 16.8px;
  --space-7: 19.6px;
  --space-8: 22.4px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;

  --shadow-sm: 0 0 0 1px #3f424d;
  --shadow-md: 0 0 0 1px #595d6c, 0 6px 18px rgba(0,0,0,0.55);
  --shadow-lg: 0 0 0 1px #9397ab, 0 16px 40px rgba(0,0,0,0.65);
}

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0;
}

p { margin: 0; }
img { display: block; max-width: 100%; }

a { color: var(--color-accent-300); text-decoration: none; text-underline-offset: 3px; }
a:hover { color: var(--color-accent); }

:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  cursor: pointer; text-decoration: none; white-space: nowrap;
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 14px; line-height: 1.2; color: var(--color-text);
  background: transparent; border: 1px solid transparent;
  padding: var(--space-2) calc(var(--space-3) * 1.2);
  border-radius: var(--radius-md);
}
.btn-primary { color: var(--color-accent); border-color: var(--color-accent); }
.btn-primary:hover { background: color-mix(in srgb, var(--color-accent) 12%, transparent); }
.btn-primary:active { background: color-mix(in srgb, var(--color-accent) 22%, transparent); }
.btn-secondary { border-color: var(--color-divider); }
.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.btn-secondary:active { background: color-mix(in srgb, var(--color-text) 14%, transparent); }

/* cards */
.card {
  display: flex; flex-direction: column; gap: var(--space-2);
  padding: var(--space-3); border-radius: var(--radius-md); background: var(--color-surface);
}
.card-title { font-family: var(--font-heading); font-weight: var(--font-heading-weight); font-size: 17px; line-height: 1.2; }
.card-body { margin: 0; font-size: 13px; opacity: 0.8; flex: 1; }
.elev-sm { box-shadow: var(--shadow-sm); }

/* tags */
.tag {
  display: inline-flex; align-items: center; font-size: 11px; white-space: nowrap;
  letter-spacing: 0.02em; padding: 3px 10px;
  border-radius: calc(var(--radius-md) * 0.75);
}
.tag-neutral { background: var(--color-neutral-800); color: var(--color-neutral-100); }

/* intro */
#hd-intro {
  position: fixed; inset: 0; z-index: 300;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle at 50% 50%, color-mix(in oklch, var(--color-accent-900) 55%, var(--color-bg)) 0%, var(--color-bg) 70%);
  overflow: hidden;
  transition: opacity 0.5s ease;
}
#hd-intro.hd-intro-out { opacity: 0; pointer-events: none; }

#hd-intro-streaks { position: absolute; inset: 0; }
.hd-streak {
  position: absolute; top: 50%; left: 50%; height: 2px; margin-top: -1px;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.95) 60%, rgba(255,255,255,0) 100%);
  transform-origin: 0% 50%;
  transform: rotate(var(--angle)) scaleX(0);
  opacity: 0;
  animation: hd-streak-fly 760ms cubic-bezier(.2,.7,.15,1) forwards;
  animation-delay: var(--delay);
}
@keyframes hd-streak-fly {
  0% { transform: rotate(var(--angle)) scaleX(0); opacity: 0; }
  12% { opacity: 1; }
  65% { opacity: 0.85; }
  100% { transform: rotate(var(--angle)) scaleX(1); opacity: 0; }
}

#hd-intro-word {
  position: relative; z-index: 2;
  font-family: var(--font-heading); font-weight: 700;
  font-size: clamp(52px, 12vw, 160px);
  letter-spacing: 0.01em;
  color: var(--color-text);
  text-align: center;
  white-space: nowrap;
  opacity: 0;
  filter: blur(16px);
  transform: scale(0.1);
  animation: hd-word-fly 820ms cubic-bezier(.16,1,.3,1) forwards;
  animation-delay: 120ms;
}
#hd-intro-word span { display: block; color: var(--color-accent); }
@keyframes hd-word-fly {
  0% { opacity: 0; transform: scale(0.1); filter: blur(22px); }
  55% { opacity: 1; filter: blur(0); }
  78% { transform: scale(1.08); }
  100% { opacity: 1; transform: scale(1); filter: blur(0); }
}

@media (prefers-reduced-motion: reduce) {
  #hd-intro-word { animation: none; opacity: 1; transform: scale(1); filter: blur(0); }
  .hd-streak { display: none; }
}

/* hyperdrive-specific */
.hd-link { color: var(--color-text); opacity: 0.75; font-size: 14px; }
.hd-link:hover { opacity: 1; color: var(--color-text); }

.hd-fade-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-neutral-500) 48px, var(--color-neutral-500) calc(100% - 48px), transparent);
}

.hd-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  will-change: transform;
}

.hd-term {
  font-family: var(--font-mono);
  color: var(--color-term-green);
  letter-spacing: 0.04em;
}
.hd-cursor {
  display: inline-block; width: 0.5em; height: 1em;
  background: var(--color-term-green); margin-left: 4px; vertical-align: -2px;
  animation: hd-blink 1s steps(1) infinite;
}
@keyframes hd-blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }

.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.9s cubic-bezier(.16,1,.3,1), transform 0.9s cubic-bezier(.16,1,.3,1);
}
.reveal.is-in { opacity: 1; transform: translateY(0); }
.reveal-d1.is-in { transition-delay: 0.08s; }
.reveal-d2.is-in { transition-delay: 0.16s; }
.reveal-d3.is-in { transition-delay: 0.24s; }
.reveal-d4.is-in { transition-delay: 0.32s; }
.reveal-d5.is-in { transition-delay: 0.4s; }

/* layout */
.site-nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background: color-mix(in oklch, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-neutral-800);
}
.site-nav-brand { display: flex; align-items: center; gap: var(--space-3); }
.site-nav-mark {
  width: 26px; height: 26px; flex-shrink: 0;
  color: var(--color-accent);
  filter: drop-shadow(0 0 5px var(--color-accent));
}
.site-nav-wordmark {
  font-family: var(--font-heading); font-weight: 500; font-size: 18px; letter-spacing: 0.02em;
}
.site-nav-wordmark span { color: var(--color-accent-300); }
.site-nav-links { display: flex; align-items: center; gap: var(--space-6); }

.hero-wrap { height: 180vh; position: relative; }
.hero {
  position: sticky; top: 0; height: 100vh;
  display: flex; align-items: center; padding: 0 var(--space-6);
  max-width: 1240px; margin: 0 auto; overflow: hidden;
}
.hero-glow { width: 480px; height: 480px; background: var(--color-accent-700); opacity: 0.35; top: -160px; right: -80px; }
.hero-content { position: relative; max-width: 720px; will-change: transform, opacity; }
.hero-term { margin-bottom: var(--space-5); font-size: 14px; }
.hero-title { font-size: 64px; margin: 0 0 var(--space-5); }
.hero-lede { font-size: 20px; line-height: 1.55; color: var(--color-neutral-200); max-width: 560px; margin: 0 0 var(--space-7); }
.hero-actions { display: flex; gap: var(--space-4); align-items: center; }
.hero-actions .hd-link { font-size: 15px; }

.section { padding: 100px var(--space-6); max-width: 1240px; margin: 0 auto; }
.section-kicker { margin-bottom: var(--space-4); font-size: 13px; }

.about-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: var(--space-8); align-items: start; }
.about-heading { font-size: 36px; }
.about-copy { font-size: 18px; line-height: 1.7; color: var(--color-neutral-200); margin: 0 0 var(--space-6); }
.about-tags { display: flex; gap: var(--space-3); flex-wrap: wrap; }

.services-heading { font-size: 36px; margin: 0 0 var(--space-7); max-width: 640px; }
.service-card {
  margin-bottom: var(--space-5); padding: var(--space-6);
  display: grid; grid-template-columns: 1fr 1.4fr; gap: var(--space-6); align-items: start;
  position: sticky; background: var(--color-bg);
}
.service-kicker { font-size: 12px; }
.service-name { font-size: 24px; margin-top: var(--space-2); }
.service-desc { margin: 0 0 var(--space-4); }
.service-bullets { display: grid; gap: var(--space-2); }
.service-bullet { display: flex; gap: var(--space-2); align-items: baseline; font-size: 15px; color: var(--color-neutral-200); }
.service-bullet-arrow { color: var(--color-accent-300); }

.contact-section { position: relative; padding: 120px var(--space-6) 100px; max-width: 1240px; margin: 0 auto; overflow: hidden; }
.contact-glow { width: 420px; height: 420px; background: var(--color-accent-700); opacity: 0.3; bottom: -160px; left: -100px; }
.contact-inner { position: relative; text-align: center; max-width: 640px; margin: 0 auto; }
.contact-heading { font-size: 40px; margin: 0 0 var(--space-4); }
.contact-copy { font-size: 18px; color: var(--color-neutral-200); margin: 0 0 var(--space-6); }
.contact-actions { display: flex; gap: var(--space-4); justify-content: center; margin-bottom: var(--space-6); }
.contact-meta { display: flex; gap: var(--space-6); justify-content: center; font-size: 14px; }

.site-footer {
  padding: var(--space-6); border-top: 1px solid var(--color-neutral-800);
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1240px; margin: 0 auto; font-size: 13px; color: var(--color-neutral-400);
}
.site-footer-links { display: flex; gap: var(--space-5); }
.site-footer-links .hd-link { font-size: 13px; }

@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; }
  .service-card { grid-template-columns: 1fr; position: static; }
  .hero-title { font-size: 44px; }
  .site-nav-links { gap: var(--space-4); }
}