/* ========== pyINLA Site Styles ========== */

/* --- Theme tokens --- */
:root {
  --bg: #0b1021;
  --bg-soft: #0f152b;
  --panel: rgba(255,255,255,0.06);
  --panel-strong: rgba(255,255,255,0.12);
  --text: #e5e7eb;
  --muted: #a1a8b5;
  --border: rgba(255,255,255,0.14);
  --accent: #0ea5a8;   /* teal */
  --accent-mid: #9fc26b; /* soft green */
  --accent-2: #f59e0b; /* amber */
  --success: #22c55e;
  --shadow: 0 10px 30px rgba(0,0,0,0.35);

  /* Code surfaces */
  --code-bg: #0A2A36;           /* unified code block bg (deep blue‑green, cooler) */
  --code-fg: var(--text);
  --code-border: rgba(255,255,255,0.08);
  --code-inline-bg: rgba(255,255,255,0.08);

  /* Text gradient (3‑stop: teal→green→amber) */
  --accent-gradient: linear-gradient(135deg, var(--accent) 0%, var(--accent-mid) 50%, var(--accent-2) 100%);
}

a { color: var(--accent); }
a:visited { color: var(--accent); }

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(14,165,168,0.20), transparent 60%),
    radial-gradient(800px 400px at 85% 10%, rgba(245,158,11,0.18), transparent 50%),
    var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, 'Helvetica Neue', Arial, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
  line-height: 1.6;
}
.container { width: 92%; max-width: 1140px; margin: 0 auto; }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }

/* --- Header/Nav --- */
.site-header { position:relative; padding-top:.75rem; background:linear-gradient(180deg, rgba(11,16,33,0.9), rgba(11,16,33,0.75) 40%, transparent); }
/* Extend header fade into content on dark pages to avoid a visible band */
body:not(.light-page) .site-header::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-64px; height:64px;
  background:linear-gradient(180deg, rgba(11,16,33,0.55) 0%, rgba(11,16,33,0.0) 100%);
  pointer-events:none;
}
.nav { display:flex; align-items:center; justify-content:space-between; gap:1rem; padding:.5rem 0; }
.brand { display:inline-flex; align-items:center; gap:.6rem; text-decoration:none; color:var(--text); font-weight:700; font-size:1.2rem; letter-spacing:.2px; }
.brand-logo { height:28px; display:inline-block; vertical-align:middle; }
.brand .brand-text { opacity:.95; }
.links { display:flex; align-items:center; gap:1rem; list-style:none; padding:0; margin:0; }
.links a { text-decoration:none; color:var(--text); opacity:.9; padding:.4rem .5rem; border-radius:.4rem; }
.links a:hover { opacity:1; background:var(--panel); }
.nav-actions { display:flex; align-items:center; gap:.75rem; }
.icon-btn { display:inline-grid; place-items:center; width:36px; height:36px; border-radius:8px; border:1px solid var(--border); background:var(--panel); color:var(--text); cursor:pointer; }
.icon-btn:hover { background:var(--panel-strong); }
.btn { --btn-bg:var(--panel); --btn-border:var(--border); display:inline-flex; align-items:center; justify-content:center; gap:.5rem; border-radius:.7rem; border:1px solid var(--btn-border); background:var(--btn-bg); color:var(--text); text-decoration:none; padding:.72rem 1.05rem; cursor:pointer; transition:transform .05s ease; }
.btn:active { transform: translateY(1px); }
.btn.small { padding:.45rem .7rem; font-size:.9rem; border-radius:.6rem; }
.btn.primary { --btn-bg: linear-gradient(135deg, var(--accent), var(--accent-2)); --btn-border: transparent; color:#fff; font-weight:600; box-shadow: var(--shadow); }
.btn.secondary { --btn-bg: var(--panel-strong); }
.btn.ghost { --btn-bg: transparent; }
.btn.ghost:hover { background: var(--panel); }
.btn.large { padding:.9rem 1.3rem; border-radius:2rem; font-size:1.05rem; }
.btn.ghost.light { background:#fff; border-color:rgba(2,6,23,0.12); color:#0f172a; }
.btn.ghost.light:hover { background:#f5f7fb; }
.nav-toggle { display:none; background:transparent; border:0; cursor:pointer; }
.nav-toggle .bar { display:block; width:24px; height:2px; background:var(--text); margin:5px 0; border-radius:4px; }

/* --- Hero --- */
.hero { display:grid; grid-template-columns:1.1fr 1fr; gap:40px; gap:min(4vw,40px); padding:2rem 0 2.5rem; align-items:center; }
.hero .eyebrow { color:var(--muted); letter-spacing:.4px; font-size:.95rem; }
.hero h1 { font-size:2.2rem; font-size:clamp(1.9rem, 1.8vw + 1.4rem, 2.9rem); line-height:1.14; margin:.2rem 0 .65rem; }
.gradient { color: var(--accent); background: var(--accent-gradient); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; }
.lead { font-size:1.05rem; color:#cdd3df; }

.install-card { display:flex; align-items:center; gap:.6rem; flex-wrap:wrap; margin:1rem 0 1.2rem; }
.install-card code { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }

.hero-card { position:relative; background:linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02)); border:1px solid var(--border); border-radius:1rem; padding:1rem 1rem 1.3rem; box-shadow:var(--shadow); }
.hero-card.tint { background: linear-gradient(180deg, rgba(14,165,168,0.10), rgba(245,158,11,0.08)); border-left:4px solid var(--accent); }
.hero-card pre { margin:0; font-size:.95rem; background:var(--code-bg); color:var(--code-fg); border:1px solid var(--code-border); }
.copy-btn { position:absolute; top:.8rem; right:.8rem; border:1px solid var(--border); background:var(--panel); color:var(--text); padding:.35rem .55rem; border-radius:.5rem; cursor:pointer; }
.copy-btn:hover { background: var(--panel-strong); }

/* --- Sections --- */
.section { padding:3rem 0 2.2rem; }
.section-header { text-align:center; margin-bottom:1.6rem; }
.section-header p { margin:.4rem auto 0; color:var(--muted); max-width:60ch; }

.feature-grid { display:grid; grid-template-columns:repeat(3, minmax(0,1fr)); gap:1rem; }
.feature { padding:1.2rem; border:1px solid var(--border); border-radius:.9rem; background:var(--panel); }
@supports (backdrop-filter: blur(6px)) {
  .feature { backdrop-filter: blur(6px); }
}
.feature .icon { margin-bottom:.3rem; opacity:.95; }
.feature h3 { margin:.3rem 0 .3rem; }
.feature p { color:var(--muted); }

.feature-link { display:block; color:var(--text); text-decoration:none; cursor:pointer; }
.feature-link:hover { background: var(--panel-strong); }
.link-gradient { color: var(--accent); background: var(--accent-gradient); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; font-weight:600; }
.link-gradient:visited { color:transparent; }

.split { display:grid; grid-template-columns:1.2fr .8fr; gap:1.2rem; }
.card { border:1px solid var(--border); background:var(--panel); padding:1.2rem; border-radius:.9rem; }
.card.note { background: linear-gradient(180deg, rgba(14,165,168,0.08), rgba(245,158,11,0.06)); }

.tick-list { list-style:none; padding:0; }
.tick-list li { margin:.4rem 0; padding-left:1.4rem; position:relative; }
.tick-list li::before { content:"✓"; position:absolute; left:0; top:0; color:var(--success); font-weight:700; }

.box { border:1px solid var(--border); background: rgba(255,255,255,0.035); padding:1rem; border-radius:.8rem; }
.box.tint{ background: linear-gradient(180deg, rgba(14,165,168,0.10), rgba(245,158,11,0.08)), #0b1021; }
.box.tint-strong{ background: linear-gradient(180deg, rgba(14,165,168,0.18), rgba(245,158,11,0.16)), #0b1021; }
.callout { border:1px solid var(--border); background:linear-gradient(180deg, rgba(14,165,168,0.10), rgba(245,158,11,0.08)); padding:1rem 1.1rem; border-left:4px solid var(--accent); border-radius:.8rem; box-shadow:var(--shadow); }
.callout.info { border-left-color: var(--accent); }
.callout.tip { border-left-color: var(--success); }
.callout.warn { border-left-color: #fbbf24; }
/* Stronger tint helper for important callouts */
.callout.tint-strong {
  background: linear-gradient(180deg, rgba(14,165,168,0.18), rgba(245,158,11,0.16));
}

.code-card { background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02)); border:1px solid var(--border); border-radius:.9rem; padding:.8rem; }
/* Tinted variant for code containers (matches callout tint) */
.code-card.tint{ background: linear-gradient(180deg, rgba(14,165,168,0.10), rgba(245,158,11,0.08)); border-left:4px solid var(--accent); }
/* Code blocks */
pre { position:relative; background:var(--code-bg); color:var(--code-fg); border:1px solid var(--code-border); border-radius:.9rem; padding:1rem 1.1rem; overflow:auto; box-shadow: inset 0 0 0 1px rgba(255,255,255,0.02), 0 8px 24px rgba(0,0,0,0.35); background-image: radial-gradient(120% 120% at -10% -20%, rgba(255,255,255,0.05), transparent 40%), radial-gradient(120% 120% at 110% -10%, rgba(14,165,168,0.18), transparent 45%); }
pre code { background:transparent; color:inherit; border:0; padding:0; }
/* Comment styling inside code blocks (added by JS wrapper) */
.code-cmt{ color:#9aa6bd; font-style: italic; opacity:.95; }
/* Inline code */
code { background:var(--code-inline-bg); color:var(--code-fg); border:1px solid var(--code-border); padding:.15rem .35rem; border-radius:.35rem; }
pre .copy-btn { position:absolute; top:.6rem; right:.6rem; border:1px solid var(--border); background:var(--panel); color:var(--text); padding:.3rem .55rem; border-radius:.5rem; cursor:pointer; }
pre .copy-btn:hover { background:var(--panel-strong); }

/* Ensure MathJax inherits page text color */
mjx-container { color: inherit; }

/* --- Footer --- */
.site-footer { border-top:1px solid var(--border); background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02)); padding:2.2rem 0; }
.footer-grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap:1.2rem; align-items:start; }
/* Centered variant for simple footers with a single block */
.footer-grid.centered { display:flex; justify-content:center; }
.footer-grid.centered > * { text-align:center; }
.f-links, .f-brand, .f-extra { display:flex; flex-direction:column; gap:.5rem; }
.f-links a { color:var(--text); opacity:.85; text-decoration:none; }
.f-links a:hover { opacity:1; }
.in-footer { margin-bottom:.4rem; }
.muted { color:var(--muted); }

/* Footer citation notice */
.footer-cite {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}
.footer-cite a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}
.footer-cite a:hover {
  text-decoration: underline;
}

/* Email links adopt brand accent globally */
a[href^="mailto:"]{ color:var(--accent); font-weight:600; text-decoration:none; }
a[href^="mailto:"]:hover{ color:#0b8b8d; text-decoration:underline; }

/* --- Responsive --- */
@media (max-width:960px){
  .hero{ grid-template-columns:1fr; }
  .split{ grid-template-columns:1fr; }
  .feature-grid{ grid-template-columns:repeat(2, minmax(0,1fr)); }
}
@media (max-width:680px){
  .links{ display:none; position:absolute; top:60px; left:0; right:0; padding:.8rem; background:#0b1021f2; border-top:1px solid var(--border); }
  .links.open{ display:grid; gap:.4rem; }
  .nav-toggle{ display:inline-block; }
  .nav-actions .btn.primary{ display:none; }
  .feature-grid{ grid-template-columns:1fr; }
}

/* --- Branding tweaks --- */
.brand.pill { background:var(--panel); border:1px solid var(--border); padding:.25rem .6rem .25rem .4rem; border-radius:12px; box-shadow:var(--shadow); }
.brand .brand-logo { height:42px; width:auto; }
.brand .brand-text { display:inline-block; font-weight:800; font-size:1.1rem; opacity:.98; }
@media (min-width: 1024px){
  .brand .brand-logo { height:52px; }
  .brand .brand-text { font-size:1.2rem; }
}

/* Header/Footer logo sizes */
.site-header .brand .brand-logo { height:56px; }
@media (min-width:1024px){ .site-header .brand .brand-logo { height:64px; } }
.site-header .brand-logo, .site-footer .brand-logo { border-radius:0; box-shadow:none; }
.site-footer .brand-logo { height:44px; }
.home .site-header .brand { display:none; }

/* --- Hero logo --- */
.hero-logo { width:180px; width:clamp(140px, 18vw, 220px); height:auto; margin:0 0 .75rem; display:block; filter: drop-shadow(0 10px 30px rgba(0,0,0,.45)); }

/* ===== Light Page Variant (docs-style) ===== */
body.light-page{
  background:
    radial-gradient(60% 40% at 10% -10%, rgba(14,165,168,0.10), transparent 60%),
    radial-gradient(40% 30% at 95% 0%, rgba(245,158,11,0.10), transparent 60%),
    #f5f8fc;
  color:#0f172a;
  --text:#0f172a;
  --muted:#475569;
  --border:rgba(2,6,23,0.10);
  --panel:rgba(255,255,255,0.95);
  --panel-strong:#ffffff;
}
/* Light page header should blend with light backgrounds */
.light-page .site-header{
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(255,255,255,0.92) 45%, transparent);
  border-bottom: 1px solid rgba(2,6,23,0.08);
}
.light-page .page-hero{
  border:1px solid rgba(2,6,23,0.08);
  background:
    radial-gradient(90% 80% at 10% -20%, rgba(14,165,168,0.14), transparent 50%),
    radial-gradient(80% 60% at 95% -10%, rgba(245,158,11,0.12), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,0.98), rgba(255,255,255,0.92));
  border-radius:1.2rem; box-shadow:0 30px 60px rgba(2,6,23,0.07), 0 6px 14px rgba(2,6,23,0.06);
  padding:1.6rem 1.4rem 1.2rem;
}
.mega{ font-size:2.6rem; font-size:clamp(2.0rem, 3vw + 1.4rem, 3.6rem); line-height:1.07; margin:.2rem 0 .6rem; }
.lead-light{ font-size:1.15rem; color:#4b5563; max-width:65ch; }
.light-page .box{
  /* Reintroduce subtle brand tint on light pages */
  background:
    linear-gradient(180deg, rgba(14,165,168,0.06), rgba(245,158,11,0.05)),
    #ffffff;
  border:1px solid rgba(2,6,23,0.10);
  box-shadow:0 6px 16px rgba(2,6,23,0.06);
}
.light-page .box.tint{
  background: linear-gradient(180deg, rgba(14,165,168,0.12), rgba(245,158,11,0.10)), #ffffff;
}
.light-page .box.tint-strong{
  background: linear-gradient(180deg, rgba(14,165,168,0.22), rgba(245,158,11,0.18)), #ffffff;
}
.light-page .callout{
  /* Keep the colored callout even on light pages */
  background: linear-gradient(180deg, rgba(14,165,168,0.12), rgba(245,158,11,0.10));
}
.light-page .callout.tint-strong{
  background: linear-gradient(180deg, rgba(14,165,168,0.22), rgba(245,158,11,0.18));
}
.light-page .callout.tint-strong .box{
  background: linear-gradient(180deg, rgba(14,165,168,0.12), rgba(245,158,11,0.10)), #ffffff;
}
.light-page .code-card{ background:#fff; border:1px solid rgba(2,6,23,0.10); box-shadow:0 6px 16px rgba(2,6,23,0.06); }
.light-page pre{ background:var(--code-bg); color:#e5e7eb; border:1px solid rgba(255,255,255,0.08); }
.light-page pre code{ color:inherit; }
.light-page pre .copy-btn{ border:1px solid rgba(255,255,255,0.25); background:rgba(255,255,255,0.10); color:#e8eef7; }
.light-page pre .copy-btn:hover{ background:rgba(255,255,255,0.18); }
.light-page code{ background:rgba(2,6,23,0.06); color:#0f172a; border:1px solid rgba(2,6,23,0.18); }

/* Tiles: light variant */
.tiles-light .feature{
  border:1px solid rgba(2,6,23,0.08);
  background: radial-gradient(140% 120% at 80% -30%, rgba(245,158,11,0.10), transparent 40%),
              radial-gradient(120% 100% at -10% 10%, rgba(14,165,168,0.12), transparent 45%),
              linear-gradient(180deg, rgba(255,255,255,0.90), rgba(255,255,255,0.82));
  color:#0f172a;
  box-shadow:0 10px 30px rgba(0,0,0,0.25), 0 2px 6px rgba(0,0,0,0.12);
  backdrop-filter:none;
}
.tiles-light .feature h3{ color: var(--accent); background:var(--accent-gradient); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; font-weight:800; }
.tiles-light .feature p{ color:#475569; }
.tile-eyebrow{ text-transform:uppercase; letter-spacing:.12rem; font-size:.8rem; color:#64748b; margin:.1rem 0 .4rem; }
.tile-cta{ display:flex; align-items:center; gap:.5rem; margin-top:.4rem; font-weight:600; }
.tile-cta .dot{ width:.5rem; height:.5rem; border-radius:50%; background:var(--accent); display:inline-block; }