/* specifica.org: shared styles for every page. */

@font-face { font-family: "Sora"; font-weight: 400; font-display: swap; src: url("/fonts/sora-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "Sora"; font-weight: 500; font-display: swap; src: url("/fonts/sora-latin-500-normal.woff2") format("woff2"); }
@font-face { font-family: "Sora"; font-weight: 600; font-display: swap; src: url("/fonts/sora-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "Sora"; font-weight: 700; font-display: swap; src: url("/fonts/sora-latin-700-normal.woff2") format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 400; font-display: swap; src: url("/fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 500; font-display: swap; src: url("/fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2"); }

:root {
  --bg: #fafaf9; --bg-subtle: #f3f3f1; --bg-elevated: #ffffff;
  --text-primary: #18181b; --text-secondary: #52525b; --text-tertiary: #71717a; --text-inverse: #ffffff;
  --green: #1a7a56; --green-hover: #15694a; --green-subtle: #e8f5ee; --green-bright: #4ade80;
  --border: #e4e4e7; --border-hover: #d4d4d8;
  --shadow: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.02);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06); --shadow-lg: 0 24px 60px rgba(17,17,19,0.12);
  --radius: 8px; --radius-lg: 14px;
  --font: "Sora", system-ui, sans-serif; --mono: "JetBrains Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dark: #111113; --dark-elevated: #1a1a1e; --dark-border: #27272a;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text-primary); -webkit-font-smoothing: antialiased; font-size: 16px; line-height: 1.6; overflow-x: hidden; }
::selection { background: var(--green-subtle); color: var(--green); }
a { color: var(--green); }
code { font-family: var(--mono); font-size: 0.88em; font-weight: 500; background: var(--bg-subtle); padding: 2px 6px; border-radius: 4px; }
img, svg { display: block; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 12px; z-index: 200; background: var(--bg-elevated); padding: 8px 12px; border-radius: var(--radius); }

/* Layout */
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section.alt { background: var(--bg-subtle); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.kicker { font-size: 12px; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; color: var(--green); margin-bottom: 12px; }
.h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 700; letter-spacing: -1.2px; line-height: 1.12; margin-bottom: 14px; }
.lead { font-size: 17px; color: var(--text-secondary); max-width: 640px; }
.center { text-align: center; }
.center .lead { margin: 0 auto; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 100; background: rgba(250,250,249,0.86); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid transparent; transition: border-color .3s ease; }
.nav.scrolled { border-bottom-color: var(--border); }
.nav-inner { height: 64px; display: flex; align-items: center; gap: 24px; }
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--text-primary); }
.logo span { font-size: 15px; font-weight: 700; letter-spacing: -0.3px; }
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--text-secondary); text-decoration: none; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text-primary); }
.nav-links a.btn-primary, .nav-links a.btn-primary:hover { color: var(--text-inverse); }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--border); border-radius: var(--radius); width: 40px; height: 36px; cursor: pointer; color: var(--text-primary); }

/* Buttons */
.btn { font-family: var(--font); font-size: 15px; font-weight: 600; padding: 12px 22px; border-radius: var(--radius); border: 1px solid transparent; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; transition: all .2s var(--ease); white-space: nowrap; }
.btn-primary { background: var(--green); color: var(--text-inverse); box-shadow: 0 6px 20px rgba(26,122,86,0.22); }
.btn-primary:hover { background: var(--green-hover); transform: translateY(-1px); }
.btn-secondary { background: var(--bg-elevated); color: var(--text-primary); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--border-hover); }
.btn-sm { font-size: 14px; padding: 8px 14px; box-shadow: none; }

/* Cards */
.card { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; transition: border-color .3s var(--ease), box-shadow .3s var(--ease); }
.card:hover { border-color: var(--border-hover); box-shadow: var(--shadow-md); }
.card h3 { font-size: 17px; font-weight: 700; letter-spacing: -0.3px; margin-bottom: 6px; }
.card p { font-size: 15px; color: var(--text-secondary); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.file-name { display: inline-block; font-family: var(--mono); font-size: 13px; font-weight: 500; color: var(--green); background: var(--green-subtle); padding: 3px 10px; border-radius: 100px; margin-bottom: 14px; }
.snippet { margin-top: 16px; background: var(--bg-subtle); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; font-family: var(--mono); font-size: 12px; line-height: 1.8; color: var(--text-secondary); white-space: pre-wrap; overflow-x: auto; }
.snippet b { color: var(--text-primary); font-weight: 500; }
.dark-panel { background: var(--dark); color: #d4d4d8; border-radius: var(--radius-lg); padding: 24px 28px; font-family: var(--mono); font-size: 13px; line-height: 1.95; overflow-x: auto; box-shadow: var(--shadow-lg); }
.dark-panel pre { margin: 0; font: inherit; white-space: pre; }
.dark-panel .g { color: var(--green-bright); }
.dark-panel .d { color: #a1a1aa; }
.dark-panel .w { color: #f4f4f5; }

/* FAQ */
.faq { max-width: 760px; margin: 40px auto 0; }
.faq details { border-bottom: 1px solid var(--border); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::after { content: "+"; color: var(--green); font-weight: 500; }
.faq details[open] summary::after { content: "–"; }
.faq summary::-webkit-details-marker { display: none; }
.faq p { margin-top: 10px; color: var(--text-secondary); }

/* Final call to action */
.cta-band { background: var(--dark); color: var(--text-inverse); padding: 96px 0; position: relative; overflow: hidden; text-align: center; }
.cta-band::before { content: ""; position: absolute; inset: -40% 20% auto; height: 120%; background: radial-gradient(closest-side, rgba(74,222,128,0.18), transparent); pointer-events: none; }
.cta-band .h2 { color: #f4f4f5; position: relative; }
.cta-band .lead { color: #d4d4d8; margin: 0 auto 32px; position: relative; }
.cta-band .btn { position: relative; }

/* Footer */
.footer { padding: 40px 0; border-top: 1px solid var(--border); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-tag { font-size: 14px; color: var(--text-secondary); }
.footer-tag a { color: var(--text-primary); font-weight: 600; text-decoration: none; }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { font-size: 14px; color: var(--text-secondary); text-decoration: none; }
.footer-links a:hover { color: var(--text-primary); }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 64px 0; }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg); border-bottom: 1px solid var(--border); padding: 8px 24px 16px; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; font-size: 16px; }
  .nav-links .btn { justify-content: center; margin-top: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}