/* Studio Kit — studiokit.app. Built on OAK Media Works canon tokens (oak-tokens.css).
   Colors/space/radius/motion all come from tokens; no raw brand hex here. */

@font-face { font-family: 'Satoshi'; font-weight: 400; font-display: swap; src: url('satoshi-400.woff2') format('woff2'); }
@font-face { font-family: 'Satoshi'; font-weight: 500; font-display: swap; src: url('satoshi-500.woff2') format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-weight: 400; font-display: swap; src: url('jetbrains-mono-400.woff2') format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-weight: 500; font-display: swap; src: url('jetbrains-mono-500.woff2') format('woff2'); }

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; }
img { max-width: 100%; }

/* nav */
.nav { display: flex; align-items: center; justify-content: space-between; gap: var(--space-lg); padding: var(--space-lg) var(--space-2xl); border-bottom: 1px solid var(--rule); }
.brand { display: flex; align-items: center; gap: var(--space-sm); text-decoration: none; color: var(--text-1); }
.oak-mark { width: 26px; height: 24px; object-fit: contain; display: block; }
.wordmark { font-weight: 500; letter-spacing: 1.5px; font-size: 15px; }
.nav-right { display: flex; align-items: center; gap: var(--space-lg); }
.link-quiet { color: var(--text-3); text-decoration: none; font-size: 13px; }
.link-quiet:hover { color: var(--accent); }

/* theme toggle */
.theme-toggle { display: flex; gap: 2px; background: var(--bg-well); border: 1px solid var(--rule); border-radius: var(--radius); padding: 3px; }
.tbtn { background: transparent; color: var(--text-3); width: 30px; height: 26px; font-size: 14px; border: none; border-radius: var(--radius-sm); cursor: pointer; }
.tbtn:hover { color: var(--text-1); }
.tbtn.active { background: var(--accent-deep); color: var(--accent-on); }

/* hero */
main { flex: 1; }
.hero { text-align: center; max-width: 760px; margin: 0 auto; padding: var(--space-4xl) var(--space-xl) var(--space-3xl); display: flex; flex-direction: column; align-items: center; gap: var(--space-lg); }
.hero-logo { width: 132px; height: 132px; object-fit: contain; margin-bottom: var(--space-xs); }
.hero h1 { margin: 0; font-size: 56px; font-weight: 500; letter-spacing: -0.5px; }
.tagline { margin: 0; font-size: 19px; line-height: 1.5; color: var(--text-2); max-width: 600px; }
.btn-download { display: inline-flex; align-items: center; gap: var(--space-sm); font-size: 16px; padding: var(--space-md) var(--space-xl); margin-top: var(--space-sm); cursor: pointer; box-shadow: var(--shadow-2); text-decoration: none; }
.hero-note { margin: 0; font-size: 13px; color: var(--text-3); }

/* features */
.features { max-width: 1040px; margin: 0 auto; padding: var(--space-2xl) var(--space-xl); display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.card { background: var(--bg-surface); border: 1px solid var(--rule); border-radius: var(--radius-lg); padding: var(--space-xl); display: flex; flex-direction: column; gap: var(--space-sm); }
.feat-icon { color: var(--accent); margin-bottom: var(--space-xs); }
.card h3 { margin: 0; font-size: 18px; font-weight: 500; }
.card p { margin: 0; font-size: 14px; line-height: 1.55; color: var(--text-2); }

/* how it works */
.how { max-width: 760px; margin: 0 auto; padding: var(--space-2xl) var(--space-xl) var(--space-4xl); }
.how h2 { font-size: 24px; font-weight: 500; margin: 0 0 var(--space-lg); text-align: center; }
.steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-md); }
.steps li { display: flex; align-items: baseline; gap: var(--space-md); font-size: 15px; line-height: 1.55; color: var(--text-2); }
.step-n { flex: 0 0 auto; width: 26px; height: 26px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); display: inline-flex; align-items: center; justify-content: center; font-size: 13px; }

/* footer */
.foot { display: flex; align-items: center; justify-content: center; gap: var(--space-md); flex-wrap: wrap; padding: var(--space-xl); border-top: 1px solid var(--rule); color: var(--text-3); font-size: 13px; }
.foot strong { color: var(--accent); font-weight: 500; letter-spacing: 0.5px; }

@media (max-width: 720px) {
  .nav { padding: var(--space-md) var(--space-lg); }
  .features { grid-template-columns: 1fr; }
  .hero { padding-top: var(--space-3xl); }
  .hero h1 { font-size: 44px; }
}