@font-face {
  font-family: "Space Mono";
  src: url("fonts/space-mono-400.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Space Mono";
  src: url("fonts/space-mono-700.ttf") format("truetype");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "Syne";
  src: url("fonts/syne-400.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Syne";
  src: url("fonts/syne-600.ttf") format("truetype");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "Syne";
  src: url("fonts/syne-700.ttf") format("truetype");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "Syne";
  src: url("fonts/syne-800.ttf") format("truetype");
  font-style: normal;
  font-weight: 800;
  font-display: swap;
}

:root {
  --bg: #0a0a0f;
  --surface: #13131a;
  --card: #16161f;
  --border: #242438;
  --text: #e8e8f0;
  --muted: #87879f;
  --accent: #00ffa3;
  --accent-dim: #00ffa315;
  --accent2: #ff6b6b;
  --accent2-dim: #ff6b6b10;
  --accent3: #00d4ff;
  --font-display: "Syne", system-ui, sans-serif;
  --font-mono: "Space Mono", ui-monospace, monospace;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --transition: 180ms ease;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(ellipse 70% 40% at 20% -10%, var(--accent-dim), transparent 70%),
    radial-gradient(ellipse 55% 35% at 90% 20%, #00d4ff0d, transparent 70%),
    var(--bg);
  font-family: var(--font-display);
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link {
  position: fixed; top: 0.75rem; left: 0.75rem; z-index: 50;
  background: var(--accent); color: var(--bg); padding: 0.7rem 1rem;
  border-radius: var(--radius-sm); transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.nav {
  width: min(1180px, calc(100% - 2rem));
  height: 82px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--border);
}
.brand {
  display: inline-flex; align-items: center; gap: 0.65rem;
  font-family: var(--font-mono); font-weight: 700; font-size: 0.92rem;
  text-decoration: none; letter-spacing: -0.03em;
}
.brand-mark {
  display: grid; place-items: center; width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent3));
  color: var(--bg); border-radius: 9px; box-shadow: 0 0 24px var(--accent-dim);
}
.brand-dot { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a {
  position: relative; color: var(--muted); text-decoration: none;
  font: 0.7rem var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase;
  transition: color var(--transition);
}
.nav-links a:hover, .nav-links a:focus-visible, .nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -10px;
  height: 2px; background: var(--accent);
}

main, footer { width: min(1180px, calc(100% - 2rem)); margin-inline: auto; }
.hero {
  position: relative; isolation: isolate; min-height: 600px;
  display: flex; flex-direction: column; align-items: flex-start; justify-content: center;
  padding: 6rem 0; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; z-index: -2; right: 4%; top: 50%;
  width: 310px; height: 310px; border-radius: 50%;
  background: radial-gradient(circle at 38% 38%, #00ffa32d, #00d4ff12 35%, transparent 70%);
  filter: blur(2px);
}
.hero-orbit {
  position: absolute; z-index: -1; right: 0; top: 50%; translate: 0 -50%;
  border: 1px solid #00ffa326; border-radius: 50%; pointer-events: none;
}
.orbit-one { width: 370px; height: 370px; animation: orbit 20s linear infinite; }
.orbit-two { width: 500px; height: 500px; border-color: #00d4ff17; animation: orbit 30s linear reverse infinite; }
.hero-orbit::after {
  content: ""; position: absolute; width: 7px; height: 7px; border-radius: 50%;
  top: 12%; left: 17%; background: var(--accent); box-shadow: 0 0 18px var(--accent);
}
@keyframes orbit { to { rotate: 360deg; } }
.eyebrow, .section-kicker {
  color: var(--accent); font: 0.72rem var(--font-mono);
  letter-spacing: 0.11em; text-transform: uppercase;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.55rem;
  border: 1px solid #00ffa337; border-radius: 999px; background: #00ffa30a;
  padding: 0.5rem 0.8rem; margin-bottom: 1.5rem;
}
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.hero h1 {
  max-width: 880px; margin: 0; font-size: clamp(2.7rem, 7vw, 5.7rem);
  line-height: 0.98; letter-spacing: -0.055em; font-weight: 800;
}
.hero h1 span {
  background: linear-gradient(110deg, var(--accent), var(--accent3));
  background-clip: text; -webkit-background-clip: text; color: transparent;
}
.hero > p {
  max-width: 620px; margin: 1.7rem 0 2rem; color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.15rem); line-height: 1.7;
}
.hero-action {
  display: inline-flex; align-items: center; gap: 0.8rem;
  color: var(--text); font: 0.75rem var(--font-mono); text-decoration: none;
  letter-spacing: 0.05em; border-bottom: 1px solid var(--accent); padding-bottom: 0.45rem;
}
.hero-action span { color: var(--accent); }

.catalog, .principles { padding: 6rem 0; scroll-margin-top: 2rem; }
.section-heading {
  display: flex; align-items: end; justify-content: space-between;
  gap: 1rem; margin-bottom: 2rem;
}
.section-kicker { margin: 0 0 0.6rem; }
.section-heading h2 {
  margin: 0; font-size: clamp(1.8rem, 4vw, 3rem);
  letter-spacing: -0.04em; line-height: 1.05;
}
.tool-count, .version {
  color: var(--muted); font: 0.68rem var(--font-mono); letter-spacing: 0.05em;
}
.tool-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.catalog-message {
  grid-column: 1 / -1; margin: 0; padding: 2rem;
  color: var(--muted); border: 1px solid var(--border);
  border-radius: var(--radius-lg); background: var(--surface);
  font: 0.75rem/1.6 var(--font-mono);
}
.catalog-error { color: var(--accent2); border-color: #ff6b6b3d; }
.tool-card {
  position: relative; display: flex; flex-direction: column; min-height: 520px;
  background: linear-gradient(150deg, #181821, var(--card));
  border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.5rem;
  overflow: hidden; transition: transform var(--transition), border-color var(--transition);
}
.tool-card::before {
  content: ""; position: absolute; inset: 0 0 auto; height: 1px;
  background: linear-gradient(90deg, transparent, #ffffff24, transparent);
}
.tool-card:hover { transform: translateY(-4px); border-color: #34344c; }
.tool-card.featured { background: linear-gradient(150deg, #151b20, var(--card) 55%); }
.card-top, .card-actions { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.tool-icon {
  display: grid; place-items: center; width: 54px; height: 54px;
  border-radius: 15px; border: 1px solid; background: #0a0a0f66;
}
.tool-icon svg { width: 26px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.tool-icon-cyan { color: var(--accent3); border-color: #00d4ff3d; box-shadow: 0 0 35px #00d4ff12; }
.tool-icon-green { color: var(--accent); border-color: #00ffa33d; box-shadow: 0 0 35px var(--accent-dim); }
.badges { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 0.35rem; }
.badge {
  display: inline-flex; align-items: center; gap: 0.35rem;
  color: #a6a6b8; border: 1px solid var(--border); border-radius: 999px;
  padding: 0.3rem 0.55rem; font: 0.6rem var(--font-mono); text-transform: uppercase;
}
.badge-green { color: var(--accent); border-color: #00ffa339; background: #00ffa30a; }
.badge-muted { color: #a2a2b2; }
.badge i { width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.card-body { margin: auto 0; padding: 2rem 0; }
.tool-number { margin: 0 0 0.75rem; color: var(--muted); font: 0.65rem var(--font-mono); letter-spacing: 0.08em; }
.card-body h3 { margin: 0; font-size: clamp(2rem, 5vw, 3.2rem); letter-spacing: -0.045em; }
.tool-description { max-width: 470px; color: var(--muted); line-height: 1.65; margin: 1rem 0 1.5rem; }
.feature-list {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.3rem;
  list-style: none; padding: 0; margin: 0; color: #a5a5b8;
  font: 0.68rem var(--font-mono);
}
.feature-list li::before { content: "✓"; color: var(--accent); margin-right: 0.4rem; }
.card-actions { border-top: 1px solid var(--border); padding-top: 1.25rem; }
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.6rem;
  min-height: 46px; padding: 0.7rem 1.15rem; border-radius: var(--radius-sm);
  font: 700 0.76rem var(--font-display); text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.button-primary { background: var(--accent); color: var(--bg); }
.button-primary:hover, .button-primary:focus-visible { background: #20ffae; transform: translateY(-1px); box-shadow: 0 8px 30px #00ffa322; }
.card-note { margin: 0.9rem 0 0; color: #77778d; font: 0.58rem/1.5 var(--font-mono); }

.principles { border-top: 1px solid var(--border); }
.compact { margin-bottom: 2.5rem; }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.principle-grid article { background: var(--surface); padding: 2rem; }
.principle-grid span { color: var(--accent); font: 0.65rem var(--font-mono); }
.principle-grid h3 { margin: 2rem 0 0.8rem; font-size: 1.1rem; }
.principle-grid p { margin: 0; color: var(--muted); font-size: 0.9rem; line-height: 1.65; }

footer { border-top: 1px solid var(--border); padding: 3rem 0 1.5rem; }
.footer-main { display: flex; align-items: start; justify-content: space-between; gap: 2rem; }
.footer-brand { margin-bottom: 1rem; }
.footer-main > div > p, .credits p { color: var(--muted); font-size: 0.78rem; margin: 0.45rem 0; }
.credits { text-align: right; }
.credits strong { color: var(--text); font-weight: 600; }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  color: #68687f; border-top: 1px solid var(--border); margin-top: 2.5rem; padding-top: 1.25rem;
  font: 0.65rem var(--font-mono);
}
.tesla-trigger {
  color: #68687f; border: 0; background: transparent; cursor: pointer;
  font: inherit; letter-spacing: 0.25em; transition: color var(--transition), text-shadow var(--transition);
}
.tesla-trigger:hover, .tesla-trigger:focus-visible { color: var(--accent3); text-shadow: 0 0 12px var(--accent3); }
.tesla-toast {
  position: fixed; z-index: 20; right: 1rem; bottom: 1rem; width: min(410px, calc(100% - 2rem));
  display: flex; gap: 0.9rem; align-items: center; padding: 1rem;
  background: #11121af2; border: 1px solid #00d4ff4d; border-radius: 14px;
  box-shadow: 0 18px 60px #0009, 0 0 35px #00d4ff12;
  opacity: 0; transform: translateY(130%); transition: 300ms ease;
  backdrop-filter: blur(16px);
}
.tesla-toast.show { opacity: 1; transform: translateY(0); }
.tesla-toast > span { color: var(--accent3); font-size: 1.5rem; }
.tesla-toast strong, .tesla-toast small { display: block; }
.tesla-toast strong { font-size: 0.78rem; }
.tesla-toast small { color: var(--muted); margin-top: 0.3rem; font: 0.62rem var(--font-mono); }

:focus-visible { outline: 2px solid var(--accent3); outline-offset: 4px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
@media (max-width: 780px) {
  .nav { height: 70px; }
  .nav-links a:not(.active) { display: none; }
  .hero { min-height: 570px; padding: 4rem 0; }
  .hero::before { right: -170px; opacity: 0.65; }
  .hero-orbit { right: -200px; opacity: 0.6; }
  .tool-grid, .principle-grid { grid-template-columns: 1fr; }
  .tool-card { min-height: 490px; }
  .footer-main { flex-direction: column; }
  .credits { text-align: left; }
}
@media (max-width: 480px) {
  main, footer, .nav { width: min(100% - 1.25rem, 1180px); }
  .hero h1 { font-size: clamp(2rem, 9vw, 2.6rem); }
  .section-heading { align-items: start; flex-direction: column; }
  .tool-card { padding: 1.15rem; border-radius: 16px; }
  .card-actions { align-items: flex-end; }
  .button { flex: 1; }
}