/* DevContext website — shared styles (GitHub Dark + VS Code identity) */

:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #0f141a;
  --border: #30363d;
  --border-soft: #21262d;
  --text: #e6edf3;
  --muted: #8b949e;
  --faint: #6e7681;

  --blue: #58a6ff;
  --purple: #a371f7;
  --green: #3fb950;
  --amber: #d29922;
  --red: #f85149;
  --teal: #39c5cf;

  --mono: ui-monospace, "Cascadia Code", "JetBrains Mono", "SF Mono", Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  --maxw: 1080px;
  --radius: 12px;
  --titlebar: #010409;
  --code-bg: #0b0f15;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --panel: #f6f8fa;
    --panel-2: #ffffff;
    --border: #d0d7de;
    --border-soft: #e4e8ec;
    --text: #1f2328;
    --muted: #59636e;
    --faint: #818b96;
    --blue: #0969da;
    --purple: #8250df;
    --green: #1a7f37;
    --amber: #9a6700;
    --red: #cf222e;
    --teal: #0e7490;
    --titlebar: #eaeef2;
    --code-bg: #f6f8fa;
  }
}
/* Explicit toggle wins over the OS media query, both directions. */
:root[data-theme="light"] {
  --bg: #ffffff; --panel: #f6f8fa; --panel-2: #ffffff; --border: #d0d7de;
  --border-soft: #e4e8ec; --text: #1f2328; --muted: #59636e; --faint: #818b96;
  --blue: #0969da; --purple: #8250df; --green: #1a7f37; --amber: #9a6700;
  --red: #cf222e; --teal: #0e7490; --titlebar: #eaeef2; --code-bg: #f6f8fa;
}
:root[data-theme="dark"] {
  --bg: #0d1117; --panel: #161b22; --panel-2: #0f141a; --border: #30363d;
  --border-soft: #21262d; --text: #e6edf3; --muted: #8b949e; --faint: #6e7681;
  --blue: #58a6ff; --purple: #a371f7; --green: #3fb950; --amber: #d29922;
  --red: #f85149; --teal: #39c5cf; --titlebar: #010409; --code-bg: #0b0f15;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; border-radius: 6px; }

/* mono label / eyebrow */
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

/* ------------------------------------------------------------------ Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner { display: flex; align-items: center; gap: 20px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.01em; }
.brand .mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 8px; color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  font-family: var(--mono); font-weight: 700; font-size: 13px;
}
.nav-links { display: flex; align-items: center; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--muted); font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 8px; cursor: pointer;
  background: var(--panel); border: 1px solid var(--border); color: var(--text); font-size: 15px;
}
.theme-toggle:hover { border-color: var(--blue); }

/* ---------------------------------------------------------------- Button */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 10px; font-size: 14px; font-weight: 600;
  border: 1px solid var(--border); background: var(--panel); color: var(--text);
  cursor: pointer; transition: transform .08s ease, border-color .12s ease, background .12s ease;
}
.btn:hover { text-decoration: none; border-color: var(--blue); transform: translateY(-1px); }
.btn.primary {
  border-color: transparent; color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--purple));
}
.btn.primary:hover { filter: brightness(1.06); }
.btn .kbd { font-family: var(--mono); font-size: 12px; opacity: .8; }

/* ----------------------------------------------------------------- Hero */
.hero { padding: 88px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.hero h1 {
  font-size: clamp(2.1rem, 4.4vw, 3.4rem); line-height: 1.06; letter-spacing: -0.025em;
  text-wrap: balance; margin: 16px 0 18px; font-weight: 800;
}
.hero h1 .grad {
  background: linear-gradient(120deg, var(--blue), var(--purple));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { font-size: 1.12rem; color: var(--muted); max-width: 46ch; }
.hero-cta { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }
.trust {
  display: flex; gap: 16px; margin-top: 22px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 12.5px; color: var(--faint);
}
.trust span { display: inline-flex; align-items: center; gap: 6px; }
.trust .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); }

/* Editor window mock */
.window {
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  background: var(--panel); box-shadow: 0 24px 60px -30px rgba(1,4,9,.75);
}
.window-bar {
  display: flex; align-items: center; gap: 8px; padding: 10px 14px;
  background: var(--titlebar); border-bottom: 1px solid var(--border-soft);
}
.tl { width: 12px; height: 12px; border-radius: 50%; }
.tl.r { background: #ff5f57; } .tl.y { background: #febc2e; } .tl.g { background: #28c840; }
.window-tab {
  margin-left: 10px; font-family: var(--mono); font-size: 12px; color: var(--muted);
  display: inline-flex; align-items: center; gap: 7px;
}
.window-body { padding: 16px; display: flex; flex-direction: column; gap: 12px; }

.conv-card { border: 1px solid var(--border); border-left: 3px solid var(--green); border-radius: 10px; background: var(--panel-2); padding: 12px 13px; }
.conv-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.conv-title { font-weight: 600; font-size: 14px; }
.conv-meta { display: flex; gap: 8px; align-items: center; margin-top: 6px; font-size: 11.5px; color: var(--muted); font-family: var(--mono); flex-wrap: wrap; }
.pill { font-family: var(--mono); font-size: 10px; font-weight: 700; padding: 2px 7px; border-radius: 20px; }
.pill.chatgpt { color: #10a37f; background: color-mix(in srgb, #10a37f 16%, transparent); }
.pill.claude { color: #d97757; background: color-mix(in srgb, #d97757 16%, transparent); }
.tagrow { display: flex; gap: 5px; margin-top: 9px; flex-wrap: wrap; }
.tag { font-family: var(--mono); font-size: 10px; font-weight: 600; padding: 1px 8px; border-radius: 20px; color: var(--blue); background: color-mix(in srgb, var(--blue) 14%, transparent); }
.tag.lang { color: var(--teal); background: color-mix(in srgb, var(--teal) 14%, transparent); }

.code-mini { margin-top: 10px; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--code-bg); }
.code-mini .ch { display: flex; align-items: center; gap: 7px; padding: 4px 9px; border-bottom: 1px solid var(--border-soft); font-family: var(--mono); font-size: 10px; color: var(--muted); }
.code-mini .ch .cd { width: 8px; height: 8px; border-radius: 2px; background: #f1e05a; }
.code-mini pre { margin: 0; padding: 10px 12px; overflow-x: auto; font-family: var(--mono); font-size: 12px; line-height: 1.55; color: var(--text); }
.k { color: var(--purple); } .s { color: var(--teal); } .c { color: var(--faint); font-style: italic; } .f { color: var(--blue); }

/* --------------------------------------------------------------- Section */
.section { padding: 72px 0; border-top: 1px solid var(--border-soft); }
.section-head { max-width: 640px; margin-bottom: 40px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -0.02em; text-wrap: balance; margin: 10px 0 10px; }
.section-head p { color: var(--muted); }

/* Platform strip */
.platforms { display: flex; flex-wrap: wrap; gap: 10px; }
.platform-chip {
  font-family: var(--mono); font-size: 13px; color: var(--muted);
  border: 1px solid var(--border); border-radius: 999px; padding: 7px 14px; background: var(--panel);
}
.platform-chip b { color: var(--text); font-weight: 600; }

/* Feature grid */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature {
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel);
  padding: 22px; transition: border-color .12s ease, transform .12s ease;
}
.feature:hover { border-color: var(--blue); transform: translateY(-2px); }
.feature .ico { font-size: 20px; margin-bottom: 12px; }
.feature h3 { font-size: 1.02rem; margin-bottom: 7px; letter-spacing: -0.01em; }
.feature p { font-size: 14px; color: var(--muted); }

/* Privacy highlight */
.privacy-card {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(160deg, color-mix(in srgb, var(--green) 8%, var(--panel)), var(--panel));
  padding: 32px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 28px; align-items: center;
}
.privacy-card ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.privacy-card li { display: flex; gap: 10px; font-size: 14.5px; }
.privacy-card li .ck { color: var(--green); font-weight: 700; }
.warn {
  border-left: 3px solid var(--amber); background: color-mix(in srgb, var(--amber) 10%, transparent);
  padding: 12px 14px; border-radius: 8px; font-size: 13.5px; color: var(--text);
}
.warn code { font-family: var(--mono); color: var(--amber); }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: step; }
.step { border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel); padding: 20px; }
.step .n { font-family: var(--mono); font-size: 12px; color: var(--faint); }
.step h4 { margin: 8px 0 6px; font-size: 0.98rem; }
.step p { font-size: 13.5px; color: var(--muted); }
.step code { font-family: var(--mono); font-size: 12.5px; color: var(--blue); }

/* ---------------------------------------------------------------- Footer */
.footer { border-top: 1px solid var(--border-soft); padding: 40px 0; margin-top: 24px; }
.footer-inner { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.footer .links { display: flex; gap: 18px; margin-left: auto; flex-wrap: wrap; }
.footer .links a { color: var(--muted); font-size: 14px; }
.footer .links a:hover { color: var(--text); text-decoration: none; }
.footer .copy { color: var(--faint); font-size: 13px; font-family: var(--mono); }

/* -------------------------------------------------------------- Legal doc */
.legal { padding: 56px 0 24px; }
.legal .doc { max-width: 760px; margin: 0 auto; }
.legal h1 { font-size: clamp(1.8rem, 3.4vw, 2.4rem); letter-spacing: -0.02em; margin-bottom: 6px; }
.legal .updated { font-family: var(--mono); font-size: 12.5px; color: var(--faint); margin-bottom: 8px; }
.legal .doc h2 { font-size: 1.15rem; margin: 32px 0 10px; padding-top: 8px; border-top: 1px solid var(--border-soft); }
.legal .doc h2:first-of-type { border-top: 0; }
.legal .doc p, .legal .doc li { color: var(--muted); font-size: 15px; }
.legal .doc p { margin: 10px 0; }
.legal .doc ul { margin: 8px 0 8px 20px; display: flex; flex-direction: column; gap: 6px; }
.legal .doc strong { color: var(--text); }
.legal .doc code { font-family: var(--mono); font-size: 13px; color: var(--blue); background: var(--panel); padding: 1px 6px; border-radius: 5px; }
.legal .backlink { font-family: var(--mono); font-size: 13px; }

/* table */
.perm-table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14px; overflow-x: auto; display: block; }
.perm-table thead, .perm-table tbody, .perm-table tr { width: 100%; }
.perm-table th, .perm-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
.perm-table th { color: var(--text); font-size: 12px; font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.06em; }
.perm-table td { color: var(--muted); }
.perm-table td code { font-family: var(--mono); color: var(--blue); }

/* ------------------------------------------------------------ Responsive */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .privacy-card { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .nav-links a:not(.btn) { display: none; }
  .features { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 40px; }
}