/* ==========================================================================
   Indie Island — tutorial site stylesheet
   Everything is scoped to .iib so pages can be pasted into a WordPress
   Custom HTML block without fighting the theme (see 02-TUTORIAL-FORMAT.md).
   Colour + type tokens follow DESIGN.md / variables.css.
   ========================================================================== */

/* Standalone only — DELETE this rule when embedding in WordPress. */
body { margin: 0; background: #ffffff; }

.iib {
  /* Brand tokens — swap these five to re-skin every page. */
  --brand-accent:     #68ef3f;  /* Electric Sprout — the only accent       */
  --brand-accent-ink: #30322a;  /* Onyx Olive — text on the accent         */
  --brand-ink:        #30322a;  /* headings + primary text on light        */
  --f-display: "Boldonse", "Ozik", ui-sans-serif, system-ui, sans-serif;
  --f-body:    "Geist", "Aeonik", "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-serif:   "Instrument Serif", "Source Serif 4", Georgia, serif;
  --f-mono:    "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* Derived palette (DESIGN.md) */
  --forest:  #122314;
  --moss:    #273f2b;
  --lichen:  #7e8371;
  --fern:    #b7bda5;
  --verdant: #26a200;
  --wash:    #e7f9dd;
  --mist:    #d9deca;
  --bone:    #f2f5eb;
  --stone:   #d6d6d6;
  --white:   #ffffff;
  --well:    #0c170d;   /* code wells — the page's one dark contrast moment on light bands */

  --r-card: 20px;
  --r-pill: 28px;
  --r-btn: 8px;
  --max: 1200px;

  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--brand-ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
.iib *, .iib *::before, .iib *::after { box-sizing: border-box; }
.iib img { max-width: 100%; display: block; }
.iib a { color: inherit; }
.iib :focus-visible { outline: 2px solid var(--brand-accent); outline-offset: 3px; border-radius: 4px; }

.iib .wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
@media (max-width: 560px) { .iib .wrap { padding: 0 16px; } }

/* ---------- Floating pill nav ---------- */
.iib .nav {
  position: sticky; top: 16px; z-index: 50;
  max-width: var(--max); margin: 16px auto 0; padding: 0 24px;
}
.iib .nav-bar {
  display: flex; align-items: center; gap: 16px;
  background: rgba(48, 50, 42, 0.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-radius: var(--r-pill);
  padding: 8px 8px 8px 24px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
}
.iib .brand { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--white); font-weight: 700; letter-spacing: -0.03em; font-size: 18px; white-space: nowrap; }
.iib .brand-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--brand-accent); box-shadow: 0 0 16px var(--brand-accent); }
.iib .tag { font-size: 11px; font-weight: 500; background: var(--brand-accent); color: var(--brand-accent-ink); border-radius: 40px; padding: 2px 10px; letter-spacing: 0.02em; }
.iib .nav-links { display: flex; gap: 4px; margin-left: auto; }
.iib .nav-links a { color: var(--fern); text-decoration: none; font-size: 14px; font-weight: 500; padding: 8px 12px; border-radius: var(--r-btn); }
.iib .nav-links a:hover, .iib .nav-links a[aria-current="page"] { color: var(--white); background: rgba(255,255,255,0.06); }
.iib .nav-cta { flex: none; }
/* Menu toggle (inserted by site.js). Hidden on wide screens. */
.iib .nav-toggle {
  display: none; flex: none; width: 40px; height: 40px; padding: 0; border: 0; border-radius: 50%;
  background: rgba(255,255,255,.08); color: var(--white); cursor: pointer;
  align-items: center; justify-content: center;
}
.iib .nav-toggle:focus-visible { outline: 2px solid var(--brand-accent); outline-offset: 2px; }
.iib .nav-toggle-bars, .iib .nav-toggle-bars::before, .iib .nav-toggle-bars::after {
  display: block; width: 18px; height: 2px; border-radius: 2px; background: currentColor;
  transition: transform .25s var(--ease-out, ease), opacity .2s ease;
}
.iib .nav-toggle-bars { position: relative; }
.iib .nav-toggle-bars::before, .iib .nav-toggle-bars::after { content: ""; position: absolute; left: 0; }
.iib .nav-toggle-bars::before { top: -6px; }
.iib .nav-toggle-bars::after { top: 6px; }
.iib .nav.is-open .nav-toggle-bars { background: transparent; }
.iib .nav.is-open .nav-toggle-bars::before { transform: translateY(6px) rotate(45deg); }
.iib .nav.is-open .nav-toggle-bars::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 900px) {
  /* Fixed-height slot: an open menu overlays the page instead of pushing it. */
  .iib .nav { height: 56px; }
  .iib .nav-bar { flex-wrap: wrap; border-radius: 28px; padding: 8px 8px 8px 20px; gap: 8px; }
  .iib .nav-cta { margin-left: auto; }
  /* No script: links simply wrap onto their own lines, nothing is cut off. */
  .iib .nav-links { order: 3; flex: 1 0 100%; flex-wrap: wrap; margin: 0 0 0 -12px; gap: 0; }
  .iib .nav-links a { font-size: 14px; padding: 8px 12px; }
  /* With script: a toggle opens a stacked panel. */
  .iib .nav.has-toggle .nav-toggle { display: inline-flex; }
  .iib .nav.has-toggle .nav-links { display: none; }
  .iib .nav.has-toggle.is-open .nav-bar { border-radius: 24px; background: rgba(18, 35, 20, 0.97); }
  .iib .nav.has-toggle.is-open .nav-links {
    display: grid; grid-template-columns: 1fr; gap: 2px;
    margin: 4px 0 4px -12px; padding-top: 8px; border-top: 1px solid rgba(183,189,165,.18);
  }
  .iib .nav.has-toggle.is-open .nav-links a { font-size: 17px; padding: 12px; color: var(--white); }
  .iib .nav.has-toggle.is-open .nav-links a[aria-current="page"] { color: var(--brand-accent); }
  .iib .nav.is-open { transform: none !important; }
}
@media (max-width: 560px) { .iib .nav { padding: 0 16px; } }
@media (max-width: 360px) { .iib .nav .tag { display: none; } .iib .nav-bar { padding-left: 16px; } }

/* ---------- Buttons & chips ---------- */
.iib .btn {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 15px/1 var(--f-body); letter-spacing: -0.01em;
  padding: 12px 20px; border-radius: var(--r-pill);
  text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, background .15s ease;
}
.iib .btn-primary { background: var(--brand-accent); color: var(--brand-accent-ink); }
.iib .btn-primary:hover { transform: translateY(-1px); }
.iib .btn-ghost { border-color: var(--white); color: var(--white); background: transparent; }
.iib .btn-ghost:hover { background: rgba(255,255,255,0.08); }
.iib .btn-line { border-color: var(--brand-ink); color: var(--brand-ink); background: transparent; }
.iib .btn-sm { padding: 8px 16px; font-size: 14px; }

.iib .chip { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; padding: 4px 12px; border-radius: 40px; background: var(--wash); color: var(--moss); }
.iib .chip-line { background: transparent; border: 1px solid var(--lichen); color: var(--white); }
.iib .chip-hold { background: var(--bone); color: var(--lichen); border: 1px solid var(--mist); }
.iib .chip-soon { background: transparent; color: var(--lichen); border: 1px dashed var(--fern); }
.iib .serif { font-family: var(--f-serif); font-weight: 400; letter-spacing: 0.02em; }
.iib .green { color: var(--brand-accent); }

/* ---------- Dark / light bands ---------- */
.iib .band-dark { background: var(--forest); color: var(--white); }
.iib .band-light { background: var(--white); }
.iib .band-bone { background: var(--bone); }
.iib .section { padding: 104px 0; }
@media (max-width: 560px) { .iib .section { padding: 64px 0; } }

/* ---------- Hero ---------- */
.iib .hero { position: relative; overflow: hidden; margin-top: -72px; padding: 184px 0 104px; }
/* Below 900px the nav is two rows tall; pull the dark hero further up so no
   white strip shows above it. The overshoot sits off-screen. */
@media (max-width: 900px) { .iib .hero { margin-top: -160px; padding-top: 272px; } }
.iib .orb {
  position: absolute; border-radius: 9999px; pointer-events: none;
  background: radial-gradient(circle at 35% 35%, var(--moss), #000 70%);
  opacity: .5; filter: blur(2px);
}
.iib .orb::after { /* grain */
  content: ""; position: absolute; inset: 0; border-radius: inherit; opacity: .35; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
.iib .orb-a { width: 560px; height: 560px; right: -160px; top: -80px; }
.iib .orb-b { width: 360px; height: 360px; left: -180px; bottom: -160px; opacity: .35; }
.iib .orb-sprout { background: radial-gradient(circle at 40% 40%, rgba(104,239,63,.55), rgba(39,63,43,.2) 55%, transparent 72%); opacity: .45; }
.iib .hero .wrap { position: relative; }
.iib .hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
@media (max-width: 940px) { .iib .hero-grid { grid-template-columns: 1fr; } }

.iib .display {
  font-family: var(--f-display); font-weight: 700;
  font-size: clamp(40px, 7vw, 80px); line-height: 1.45; letter-spacing: -0.01em;
  margin: 24px 0; text-wrap: balance;
}
.iib .display-sm { font-size: clamp(30px, 4.6vw, 52px); line-height: 1.5; }
.iib .lede { font-size: 18px; color: var(--fern); max-width: 600px; margin: 0 0 32px; }
.iib .band-light .lede, .iib .band-bone .lede { color: var(--lichen); }
.iib .cta-row { display: flex; flex-wrap: wrap; gap: 16px; }

/* ---------- Image placeholders ----------
   Every empty slot carries data-slot (a stable id) so real images can be
   dropped in later: replace the <div class="ph-box"> with an <img>. */
.iib .ph { margin: 0; }
.iib .ph-box {
  position: relative; width: 100%;
  aspect-ratio: var(--ratio, 16 / 9);
  border: 1.5px dashed var(--fern); border-radius: var(--r-card);
  background:
    repeating-linear-gradient(135deg, transparent 0 14px, rgba(126,131,113,.08) 14px 15px),
    var(--bone);
  display: grid; place-items: center; text-align: center; padding: 24px;
  color: var(--lichen);
}
.iib .band-dark .ph-box {
  border-color: rgba(183,189,165,.4);
  background:
    repeating-linear-gradient(135deg, transparent 0 14px, rgba(183,189,165,.07) 14px 15px),
    rgba(255,255,255,.03);
  color: var(--fern);
}
.iib .ph-box .ph-icon { width: 32px; height: 32px; margin: 0 auto 8px; opacity: .7; }
.iib .ph-box .ph-label { font-size: 14px; font-weight: 500; max-width: 42ch; }
.iib .ph-box .ph-id { display: inline-block; margin-top: 8px; font: 12px var(--f-mono); letter-spacing: 0; opacity: .75; }
.iib .ph figcaption, .iib .ph-cap { font-size: 13px; color: var(--lichen); margin-top: 8px; }
.iib .ph-tilt { transform: rotate(-3deg); box-shadow: 0 24px 60px rgba(0,0,0,.35), 0 4px 12px rgba(0,0,0,.2); border-radius: var(--r-card); }
@media (prefers-reduced-motion: no-preference) { .iib .ph-tilt { transition: transform .4s ease; } .iib .ph-tilt:hover { transform: rotate(-1deg); } }

/* ---------- Home: tutorial cards ---------- */
.iib .section-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 48px; }
.iib .section-head h2, .iib .h2 { font-size: clamp(28px, 4vw, 40px); line-height: 1.15; letter-spacing: -0.03em; font-weight: 700; margin: 0; max-width: 20ch; }
.iib .section-head p { max-width: 460px; margin: 0; color: var(--lichen); }
.iib .eyebrow { font: 500 13px/1 var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--verdant); }
.iib .band-dark .eyebrow { color: var(--brand-accent); }

.iib .cards { display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-flow: dense; gap: 24px; }
@media (max-width: 940px) { .iib .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .iib .cards { grid-template-columns: 1fr; } }
.iib .card {
  display: flex; flex-direction: column; gap: 16px;
  background: var(--bone); border-radius: var(--r-card); padding: 24px;
  text-decoration: none; color: inherit; border: 1px solid transparent;
  transition: border-color .15s ease, transform .15s ease;
}
.iib a.card:hover { border-color: var(--brand-ink); }
.iib .card .ph-box { --ratio: 16 / 10; border-radius: 14px; }
.iib .card h3 { font-size: 20px; line-height: 1.3; letter-spacing: -0.02em; margin: 0; font-weight: 700; }
.iib .card p { margin: 0; color: var(--lichen); font-size: 15px; }
.iib .card-meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: auto; }
.iib .card-num { font: 12px var(--f-mono); color: var(--lichen); }
.iib .card-feature { grid-column: span 2; display: grid; grid-template-columns: 1fr 1fr; align-items: center; }
.iib .card-feature .ph-box { --ratio: 4 / 3; }
.iib .card-feature h3 { font-size: 28px; }
@media (max-width: 940px) { .iib .card-feature { grid-column: span 2; } }
@media (max-width: 560px) { .iib .card-feature { grid-column: auto; grid-template-columns: 1fr; } }
.iib .card-muted { background: transparent; border: 1px dashed var(--mist); }

/* ---------- Home: principles & stats ---------- */
.iib .stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(183,189,165,.2); border-radius: var(--r-card); overflow: hidden; margin-top: 64px; }
.iib .stat { background: var(--forest); padding: 24px; }
.iib .stat b { display: block; font-family: var(--f-display); font-size: 32px; line-height: 1; color: var(--brand-accent); margin-bottom: 8px; }
.iib .stat span { font-size: 14px; color: var(--fern); }
@media (max-width: 760px) { .iib .stats { grid-template-columns: repeat(2, 1fr); } }

.iib .rules { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
@media (max-width: 760px) { .iib .rules { grid-template-columns: 1fr; gap: 32px; } }
.iib .rule h3 { font-size: 20px; margin: 16px 0 8px; letter-spacing: -0.02em; }
.iib .rule p { margin: 0; color: var(--lichen); }
.iib .rule-n { font: 500 13px var(--f-mono); color: var(--verdant); border: 1px solid var(--mist); border-radius: 40px; padding: 4px 12px; }

.iib .split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
@media (max-width: 940px) { .iib .split { grid-template-columns: 1fr; gap: 40px; } }
.iib .quote { font-family: var(--f-serif); font-size: clamp(26px, 3.4vw, 36px); line-height: 1.25; letter-spacing: -0.01em; margin: 0; }

/* ---------- Tutorial masthead ---------- */
.iib .crumbs { font-size: 14px; color: var(--fern); display: flex; gap: 8px; flex-wrap: wrap; }
.iib .crumbs a { text-decoration: none; color: var(--fern); }
.iib .crumbs a:hover { color: var(--white); }
.iib .keynums { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 48px; }
.iib .keynum { border-top: 1px solid rgba(183,189,165,.3); padding-top: 16px; }
.iib .keynum b { display: block; font-size: 28px; font-weight: 700; letter-spacing: -0.03em; color: var(--white); }
.iib .keynum span { font-size: 14px; color: var(--fern); }
@media (max-width: 760px) { .iib .keynums { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Tutorial layout: rail + steps ---------- */
/* padding-block only: the side padding comes from .wrap */
.iib .layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 64px; padding-block: 80px 104px; }
@media (max-width: 940px) { .iib .layout { grid-template-columns: minmax(0, 1fr); gap: 32px; padding-top: 48px; } }

.iib .rail { position: sticky; top: 104px; align-self: start; }
.iib .rail h4 { font: 500 12px var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--lichen); margin: 0 0 16px; }
.iib .progress { height: 4px; background: var(--mist); border-radius: 4px; overflow: hidden; margin-bottom: 8px; }
.iib .progress i { display: block; height: 100%; width: 0; background: var(--verdant); transition: width .3s ease; }
.iib .progress-label { font-size: 13px; color: var(--lichen); margin-bottom: 16px; }
.iib .rail ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.iib .rail li { display: flex; align-items: center; gap: 8px; }
.iib .rail input[type="checkbox"] { accent-color: var(--verdant); width: 16px; height: 16px; flex: none; margin: 0; cursor: pointer; }
.iib .rail a { flex: 1; text-decoration: none; font-size: 14px; color: var(--lichen); padding: 6px 8px; border-radius: 8px; line-height: 1.35; }
.iib .rail a:hover { color: var(--brand-ink); background: var(--bone); }
.iib .rail a.is-active { color: var(--brand-ink); background: var(--wash); }
.iib .rail li.is-done a { text-decoration: line-through; text-decoration-color: var(--fern); }
@media (max-width: 940px) {
  .iib .rail { position: static; background: var(--bone); border-radius: var(--r-card); padding: 24px; }
  .iib .rail ol { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) { .iib .rail ol { grid-template-columns: 1fr; } }

.iib .prose h2 { font-size: 32px; line-height: 1.2; letter-spacing: -0.03em; margin: 0 0 16px; }
.iib .prose p { margin: 0 0 16px; max-width: 68ch; }
.iib .prose ul, .iib .prose ol.list { margin: 0 0 16px; padding-left: 20px; max-width: 68ch; }
.iib .prose li { margin-bottom: 8px; }
.iib .prose code, .iib .ic { font: 0.88em var(--f-mono); background: var(--bone); border: 1px solid var(--mist); padding: 1px 6px; border-radius: 6px; letter-spacing: 0; }
.iib .prose strong { font-weight: 600; }

.iib .before { background: var(--bone); border-radius: var(--r-card); padding: 32px; margin-bottom: 64px; }
.iib .before h2 { font-size: 24px; }
.iib .before ul { margin-bottom: 0; }

/* ---------- Step ---------- */
.iib .step { padding: 56px 0; border-top: 1px solid var(--mist); scroll-margin-top: 104px; }
.iib .step:first-of-type { border-top: 0; padding-top: 0; }
.iib .step-head { display: flex; gap: 16px; align-items: baseline; margin-bottom: 8px; }
.iib .step-num { font-family: var(--f-display); font-size: 40px; line-height: 1; color: var(--verdant); flex: none; min-width: 56px; }
.iib .step h2 { font-size: clamp(24px, 3vw, 32px); margin: 0; }
.iib .goal { font: 14px var(--f-mono); letter-spacing: 0; color: var(--moss); background: var(--wash); display: inline-block; border-radius: 8px; padding: 8px 12px; margin: 8px 0 24px; }
.iib .goal::before { content: "goal → "; color: var(--verdant); }
.iib .place { background: var(--bone); border-radius: 16px; padding: 24px; margin: 24px 0; }
.iib .place h3, .iib .mini-h { font: 500 12px var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--lichen); margin: 0 0 12px; }
.iib .place ul { margin: 0; }
.iib .place li:last-child { margin-bottom: 0; }

.iib .trap, .iib .done, .iib .note {
  display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: start;
  border-radius: 16px; padding: 16px 24px; margin: 24px 0 0; max-width: 72ch;
}
.iib .trap { background: #fff6f3; border: 1px solid #f2d7cc; }
.iib .trap .lbl { color: #a3401f; }
.iib .done { background: var(--wash); border: 1px solid #c9ebb8; }
.iib .done .lbl { color: var(--verdant); }
.iib .note { background: var(--bone); border: 1px solid var(--mist); }
.iib .note .lbl { color: var(--lichen); }
.iib .lbl { font: 600 12px/1.9 var(--f-mono); letter-spacing: .06em; text-transform: uppercase; white-space: nowrap; }
.iib .trap p, .iib .done p, .iib .note p { margin: 0; }
@media (max-width: 560px) { .iib .trap, .iib .done, .iib .note { grid-template-columns: 1fr; gap: 4px; } }

.iib .step .ph { margin: 24px 0; }
.iib .ph-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 24px 0; }
.iib .ph-pair .ph { margin: 0; }
@media (max-width: 560px) { .iib .ph-pair { grid-template-columns: 1fr; } }

/* ---------- Code wells ---------- */
.iib .code { background: var(--well); border-radius: 16px; margin: 24px 0; overflow: hidden; border: 1px solid #1f3321; }
.iib .code-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 10px 16px; border-bottom: 1px solid #1f3321; }
.iib .code-file { font: 13px var(--f-mono); color: var(--fern); letter-spacing: 0; display: flex; align-items: center; gap: 8px; min-width: 0; }
.iib .code-file::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--brand-accent); flex: none; }
.iib .copy { font: 500 12px var(--f-body); color: var(--fern); background: transparent; border: 1px solid #2b4430; border-radius: 6px; padding: 4px 10px; cursor: pointer; flex: none; }
.iib .copy:hover { color: var(--white); border-color: var(--lichen); }
.iib .code pre { margin: 0; padding: 20px; overflow-x: auto; font: 13.5px/1.65 var(--f-mono); letter-spacing: 0; color: #e4ead6; tab-size: 4; }
.iib .code code { font: inherit; background: none; border: 0; padding: 0; }
.iib .tok-c { color: #7e8371; font-style: italic; }
.iib .tok-s { color: #b9f59d; }
.iib .tok-k { color: #68ef3f; }
.iib .tok-n { color: #f0c987; }
.iib .tok-sp { color: #9fd8ff; }
.iib .code-err pre { color: #ffb4a1; }
.iib .code-ph pre { color: var(--lichen); }
.iib .code-ph { border-style: dashed; border-color: #2b4430; }

.iib table.tbl { width: 100%; border-collapse: collapse; font-size: 15px; margin: 24px 0; }
.iib .tbl-wrap { overflow-x: auto; margin: 24px 0; border: 1px solid var(--mist); border-radius: 16px; }
.iib .tbl-wrap table.tbl { margin: 0; }
.iib .tbl th, .iib .tbl td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--mist); vertical-align: top; }
.iib .tbl th { font: 500 12px var(--f-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--lichen); background: var(--bone); }
.iib .tbl tr:last-child td { border-bottom: 0; }

/* ---------- Final checklist ---------- */
.iib .final { background: var(--forest); color: var(--white); border-radius: 24px; padding: 48px; margin-top: 56px; }
.iib .final h2 { color: var(--white); }
.iib .final p { color: var(--fern); }
.iib .checklist, .iib .prose .checklist { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 8px; }
.iib .checklist li { margin: 0; }
.iib .checklist label { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 16px; align-items: start; padding: 16px; border: 1px solid #30322a; border-radius: 12px; cursor: pointer; }
.iib .checklist input { accent-color: var(--brand-accent); width: 18px; height: 18px; margin: 2px 0 0; }
.iib .checklist b { display: block; font-weight: 600; color: var(--white); }
.iib .checklist span { color: var(--fern); font-size: 15px; }
.iib .checklist input:checked + div b { text-decoration: line-through; text-decoration-color: var(--brand-accent); }
@media (max-width: 560px) { .iib .final { padding: 32px 20px; } }

/* ---------- Pager & footer ---------- */
.iib .pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 56px; }
.iib .pager a { display: block; padding: 24px; border: 1px solid var(--mist); border-radius: var(--r-card); text-decoration: none; }
.iib .pager a:hover { border-color: var(--brand-ink); }
.iib .pager small { display: block; font: 12px var(--f-mono); color: var(--lichen); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 4px; }
.iib .pager b { font-weight: 600; }
.iib .pager .next { text-align: right; grid-column: 2; }
@media (max-width: 560px) { .iib .pager { grid-template-columns: 1fr; } .iib .pager .next { grid-column: auto; } }

.iib .footer { background: var(--forest); color: var(--fern); padding: 64px 0 40px; font-size: 14px; }
.iib .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
@media (max-width: 760px) { .iib .footer-grid { grid-template-columns: 1fr; } }
.iib .footer h4 { color: var(--white); font-size: 14px; margin: 0 0 12px; }
.iib .footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.iib .footer a { text-decoration: none; color: var(--fern); }
.iib .footer a:hover { color: var(--white); }
.iib .footer-tag { font-family: var(--f-display); font-size: clamp(28px, 4vw, 40px); line-height: 1.45; color: var(--white); margin: 0 0 16px; }
.iib .footer-base { border-top: 1px solid #30322a; margin-top: 48px; padding-top: 24px; display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; }

/* ---------- Reference pages ---------- */
.iib .ref-toc { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; }
.iib .ref-toc a { font-size: 14px; text-decoration: none; padding: 6px 14px; border-radius: 40px; border: 1px solid rgba(183,189,165,.4); color: var(--fern); }
.iib .ref-toc a:hover { color: var(--white); border-color: var(--white); }
.iib .ref-block { padding: 56px 0; border-top: 1px solid var(--mist); scroll-margin-top: 104px; }
.iib .ref-block:first-child { border-top: 0; padding-top: 0; }
.iib .ref-sig { font: 13px var(--f-mono); color: var(--lichen); margin: -8px 0 16px; letter-spacing: 0; word-break: break-all; }

@media (prefers-reduced-motion: reduce) {
  .iib *, .iib *::before, .iib *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* Inline code on dark bands */
.iib .footer .ic, .iib .final .ic, .iib .band-dark .ic { background: transparent; border-color: #30322a; color: var(--fern); }
.iib .ph-box > div { display: flex; flex-direction: column; align-items: center; }
.iib .ph-box .ph-id { display: block; }

/* ---------- Verse downloads ---------- */
.iib .dl-box { border: 1px solid var(--mist); border-radius: var(--r-card); margin: 0 0 64px; overflow: hidden; }
.iib .dl-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; padding: 24px; background: var(--bone); }
.iib .dl-head h2 { font-size: 24px; margin: 0 0 4px; }
.iib .dl-head p { margin: 0; color: var(--lichen); font-size: 15px; }
.iib .dl-list { list-style: none; margin: 0; padding: 0; max-width: none !important; }
.iib .dl-list li { display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: center; padding: 16px 24px; border-top: 1px solid var(--mist); margin: 0; }
.iib .dl-ico { width: 40px; height: 40px; border-radius: 10px; background: var(--well); color: var(--brand-accent); display: grid; place-items: center; font: 600 11px var(--f-mono); letter-spacing: 0; }
.iib .dl-name { font: 500 15px var(--f-mono); letter-spacing: 0; word-break: break-all; }
.iib .dl-desc { display: block; font-size: 14px; color: var(--lichen); margin-top: 2px; }
.iib a.dl { white-space: nowrap; }
.iib a.dl.is-pending { pointer-events: none; opacity: .55; border-style: dashed; }
.iib .dl-foot { padding: 16px 24px; border-top: 1px solid var(--mist); font-size: 14px; color: var(--lichen); }
@media (max-width: 560px) {
  .iib .dl-list li { grid-template-columns: auto 1fr; }
  .iib .dl-list li a.dl { grid-column: 1 / -1; justify-content: center; }
}
/* Inline "full file" callout inside a step */
.iib .dl-inline { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; background: var(--well); color: #e4ead6; border-radius: 16px; padding: 16px 20px; margin: 24px 0; }
.iib .dl-inline .dl-name { color: #e4ead6; }
.iib .dl-inline .dl-desc { color: var(--lichen); }
.iib .dl-box { scroll-margin-top: 104px; }

/* ---------- Partners ---------- */
.iib .partners { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 940px) { .iib .partners { grid-template-columns: 1fr; } }
.iib .partner { display: flex; flex-direction: column; gap: 16px; padding: 32px; border: 1px solid #30322a; border-radius: var(--r-card); background: rgba(255,255,255,.03); }
.iib .partner .ph-box { --ratio: 3 / 1; border-radius: 12px; padding: 16px; }
.iib .partner .eyebrow { font-size: 12px; }
.iib .partner h3 { font-size: 24px; letter-spacing: -0.03em; margin: 0; color: var(--white); }
.iib .partner p { margin: 0; color: var(--fern); }
.iib .partner .btn { align-self: flex-start; margin-top: auto; }
.iib .voices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
@media (max-width: 940px) { .iib .voices { grid-template-columns: 1fr; } }
.iib .voice { border-top: 1px solid rgba(183,189,165,.3); padding-top: 24px; }
.iib .voice p { font-family: var(--f-serif); font-size: 22px; line-height: 1.35; color: var(--white); margin: 0 0 16px; }
.iib .voice b { display: block; color: var(--white); font-weight: 600; font-size: 15px; }
.iib .voice span { color: var(--fern); font-size: 14px; }

/* ==========================================================================
   Motion & interaction (driven by assets/js/motion.js)
   Hidden "before" states only apply once JS has added .is-motion, so the page
   is fully readable with scripts stripped. Reduced motion: JS never adds it.
   ========================================================================== */

@view-transition { navigation: auto; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: .35s; }

.iib [id] { scroll-margin-top: 96px; }
.iib { --ease-out: cubic-bezier(.2, .8, .2, 1); --ease-spring: cubic-bezier(.34, 1.56, .64, 1); }

/* Scroll progress */
.iib .scroll-progress { position: fixed; inset: 0 0 auto 0; height: 3px; z-index: 60; pointer-events: none; }
.iib .scroll-progress i { display: block; height: 100%; background: var(--brand-accent); transform-origin: 0 50%; transform: scaleX(0); box-shadow: 0 0 12px var(--brand-accent); }

/* Nav: hide on scroll down, return on scroll up */
.iib .nav { transition: transform .45s var(--ease-out); }
.iib .nav.is-hidden { transform: translateY(calc(-100% - 32px)); }
.iib .nav-bar { transition: padding .3s var(--ease-out), background .3s ease; }
.iib .nav.is-scrolled .nav-bar { background: rgba(18, 35, 20, 0.88); }
.iib .nav-links a { position: relative; transition: color .2s ease, background .2s ease; }

/* Reveal */
.iib.is-motion .reveal { opacity: 0; translate: 0 28px; transition: opacity .8s var(--ease-out), translate .8s var(--ease-out); transition-delay: calc(var(--i, 0) * 70ms); }
.iib.is-motion .reveal.is-in { opacity: 1; translate: 0 0; }

/* Hero headline: words rise out of a mask */
.iib .display .w { display: inline-block; overflow: hidden; vertical-align: top; padding: .04em .02em .26em; margin: -.04em -.02em -.26em; }
.iib .display .wi { display: inline-block; }
.iib.is-motion .display .wi { translate: 0 110%; transition: translate 1s var(--ease-out); transition-delay: calc(var(--i, 0) * 80ms + 100ms); }
.iib.is-motion .display.is-in .wi { translate: 0 0; }

/* Step number pops in */
.iib.is-motion .step .step-num { scale: .6; opacity: 0; transition: scale .7s var(--ease-spring), opacity .4s ease; transition-delay: .1s; }
.iib.is-motion .step.is-in .step-num { scale: 1; opacity: 1; }
.iib .step.is-done .step-num { color: var(--brand-accent); text-shadow: 0 0 24px rgba(104,239,63,.45); }
.iib .step.is-done .done { box-shadow: 0 0 0 3px rgba(104,239,63,.25); }
.iib .done { transition: box-shadow .4s ease; }

/* Orbs: scroll parallax + mouse drift (vars set by JS) */
.iib .orb { transform: translate3d(var(--ox, 0px), calc(var(--py, 0px) + var(--oy, 0px)), 0); transition: transform 1.1s var(--ease-out); will-change: transform; }

/* Cursor spotlight on dark surfaces */
.iib .band-dark, .iib .final, .iib .footer { position: relative; }
.iib .spot::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none; border-radius: inherit;
  background: radial-gradient(520px circle at var(--sx, 50%) var(--sy, 50%), rgba(104,239,63,.10), transparent 60%);
  opacity: 0; transition: opacity .5s ease;
}
.iib .spot.is-lit::before { opacity: 1; }
.iib .spot > :not(.orb) { position: relative; z-index: 1; }

/* 3D tilt + glare */
.iib .tilt { transform: perspective(1000px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); transition: transform .6s var(--ease-out), border-color .15s ease; transform-style: preserve-3d; position: relative; }
.iib .tilt.is-tilting { transition: transform .1s linear, border-color .15s ease; }
.iib .ph-tilt.tilt { transform: perspective(1000px) rotate(-3deg) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); }
.iib .tilt::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: radial-gradient(400px circle at var(--gx, 50%) var(--gy, 50%), rgba(255,255,255,.28), transparent 45%);
  opacity: 0; transition: opacity .4s ease; mix-blend-mode: soft-light;
}
.iib .tilt.is-tilting::after { opacity: 1; }

/* Magnetic buttons */
.iib .btn.is-magnetic { transition: transform .5s var(--ease-spring), background .15s ease; }
.iib .btn.is-magnetic.is-pulling { transition: transform .12s linear, background .15s ease; }

/* Marquee */
.iib .marquee { overflow: hidden; background: var(--forest); border-top: 1px solid #1f3321; border-bottom: 1px solid #1f3321; padding: 24px 0; user-select: none; }
.iib .marquee-track { display: flex; width: max-content; will-change: transform; }
.iib .marquee-item { display: flex; align-items: center; gap: 40px; padding-right: 40px; font-family: var(--f-display); font-size: clamp(32px, 5vw, 64px); line-height: 1; color: var(--white); white-space: nowrap; }
.iib .marquee-item .outline { color: transparent; -webkit-text-stroke: 1.5px var(--fern); }
.iib .marquee-item .dot { width: 14px; height: 14px; border-radius: 50%; background: var(--brand-accent); box-shadow: 0 0 20px var(--brand-accent); flex: none; }
.iib .marquee:hover .outline { -webkit-text-stroke-color: var(--brand-accent); }

/* Placeholder shimmer on hover */
.iib .ph-box { overflow: hidden; }
.iib .ph-box::after { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%); translate: -100% 0; pointer-events: none; }
@media (hover: hover) { .iib .ph:hover .ph-box::after, .iib .card:hover .ph-box::after { translate: 100% 0; transition: translate 1s var(--ease-out); } }

/* Prose links: underline grows */
.iib .prose a:not(.btn):not(.card), .iib .lede a, .iib .dl-head a {
  text-decoration: none; background: linear-gradient(currentColor, currentColor) 0 100% / 100% 1px no-repeat; transition: background-size .35s var(--ease-out), color .2s ease;
}
.iib .prose a:not(.btn):not(.card):hover, .iib .dl-head a:hover { background-size: 100% 2px; color: var(--verdant); }
.iib .rail a, .iib .pager a { background: none !important; }

/* Rail + checkboxes */
.iib .rail a { transition: color .2s ease, background .25s ease, padding-left .25s var(--ease-out); }
.iib .rail a.is-active { padding-left: 14px; box-shadow: inset 3px 0 0 var(--verdant); }
.iib .rail-hint { margin-top: 16px; font-size: 12px; color: var(--lichen); }
.iib .rail-hint kbd { font: 11px var(--f-mono); border: 1px solid var(--mist); border-bottom-width: 2px; border-radius: 4px; padding: 1px 5px; background: var(--white); }
@media (hover: none) { .iib .rail-hint { display: none; } }
.iib input[type="checkbox"] { transition: transform .3s var(--ease-spring); }
.iib input[type="checkbox"]:checked { transform: scale(1.15); }

/* Sparks */
.iib .spark { position: fixed; width: 6px; height: 6px; border-radius: 50%; background: var(--brand-accent); pointer-events: none; z-index: 70; box-shadow: 0 0 8px var(--brand-accent); }

/* Checklist complete */
.iib .final-done { display: flex; align-items: center; gap: 12px; margin-top: 24px; padding: 16px 20px; border-radius: 12px; background: rgba(104,239,63,.12); color: var(--brand-accent); font-weight: 600; opacity: 0; translate: 0 8px; transition: opacity .5s ease, translate .5s var(--ease-out); pointer-events: none; }
.iib .final.is-complete .final-done { opacity: 1; translate: 0 0; }
.iib .final.is-complete { box-shadow: 0 0 0 2px var(--brand-accent), 0 0 60px rgba(104,239,63,.2); transition: box-shadow .6s ease; }

/* Copy button feedback */
.iib .copy.is-copied { color: var(--brand-accent); border-color: var(--brand-accent); animation: iib-pop .4s var(--ease-spring); }
@keyframes iib-pop { 50% { transform: scale(1.12); } }

/* Back to top */
.iib .to-top { position: fixed; right: 24px; bottom: 24px; z-index: 55; width: 48px; height: 48px; border-radius: 50%; border: 0; cursor: pointer; background: var(--brand-accent); color: var(--brand-accent-ink); display: grid; place-items: center; box-shadow: 0 8px 24px rgba(0,0,0,.25); opacity: 0; translate: 0 16px; pointer-events: none; transition: opacity .3s ease, translate .4s var(--ease-out); }
.iib .to-top.is-shown { opacity: 1; translate: 0 0; pointer-events: auto; }
.iib .to-top svg { width: 20px; height: 20px; }
@media (max-width: 560px) { .iib .to-top { right: 16px; bottom: 16px; } }

@media (prefers-reduced-motion: reduce) {
  .iib .marquee-track { transform: none !important; }
  .iib .tilt, .iib .orb { transform: none !important; }
  .iib .ph-tilt.tilt { transform: rotate(-3deg) !important; }
}

/* ---------- Text still to be supplied ---------- */
.iib .todo { display: inline-block; font: 500 13px/1.4 var(--f-mono); letter-spacing: 0; color: var(--lichen); border: 1px dashed var(--fern); border-radius: 8px; padding: 2px 8px; background: var(--bone); }
.iib .band-dark .todo { background: rgba(255,255,255,.04); color: var(--fern); border-color: rgba(183,189,165,.4); }

/* ---------- About: timeline ---------- */
.iib .timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.iib .timeline li { display: grid; grid-template-columns: 120px 1fr; gap: 32px; padding: 32px 0; border-top: 1px solid var(--mist); }
.iib .timeline li:last-child { border-bottom: 1px solid var(--mist); }
.iib .timeline .t-num { font-family: var(--f-display); font-size: 48px; line-height: 1; color: var(--verdant); }
.iib .timeline h3 { font-size: 24px; margin: 0 0 8px; letter-spacing: -0.02em; }
.iib .timeline p { margin: 0 0 12px; color: var(--lichen); max-width: 60ch; }
.iib .timeline .ph { margin-top: 16px; max-width: 520px; }
@media (max-width: 560px) { .iib .timeline li { grid-template-columns: 1fr; gap: 12px; } }

/* ---------- Support credit ---------- */
.iib .support { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; margin-top: 48px; padding: 24px; border: 1px solid #30322a; border-radius: var(--r-card); }
.iib .support .ph { width: 200px; flex: none; }
.iib .support .ph-box { --ratio: 2 / 1; border-radius: 10px; padding: 8px; }
.iib .support .ph-box .ph-label { font-size: 12px; }
.iib .support p { margin: 0; color: var(--fern); max-width: 60ch; }
.iib .support a { color: var(--white); }

/* ---------- Filled logo slots ---------- */
.iib .ph-logo { margin: 0; display: flex; align-items: center; min-height: 80px; }
.iib .logo-img { height: 80px; width: auto; max-width: 100%; object-fit: contain; object-position: left center; opacity: .92; transition: opacity .2s ease; }
.iib .partner:hover .logo-img { opacity: 1; }
.iib .support .ph-logo { width: auto; min-height: 0; }
.iib .logo-support { height: 88px; width: 88px; object-position: center; }

/* ---------- Filled screenshot slots (scripts/place-shot.py) ---------- */
.iib .ph-shot img { display: block; width: 100%; height: auto; border-radius: var(--r-card); border: 1px solid var(--mist); background: var(--bone); }
.iib .band-dark .ph-shot img { border-color: #30322a; }
.iib .card .ph-shot img { border-radius: 14px; }

/* ---------- Phone spacing ----------
   One place for the small-screen rhythm: tighter vertical bands, roomier
   text blocks, and no content touching the screen edge. */
@media (max-width: 560px) {
  .iib .hero { padding: 232px 0 64px; }
  .iib .hero-grid { gap: 40px; }
  .iib .lede { margin-bottom: 24px; }
  .iib .cta-row { gap: 12px; }
  .iib .cta-row .btn { flex: 1 1 auto; justify-content: center; text-align: center; }

  .iib .section { padding: 56px 0; }
  .iib .section-head { margin-bottom: 32px; gap: 12px; }

  .iib .stats { margin-top: 40px; }
  .iib .stat { padding: 20px 16px; }
  .iib .stat b { font-size: 28px; }
  .iib .stat span { font-size: 13px; line-height: 1.4; display: block; }
  .iib .keynums { gap: 12px; margin-top: 32px; }

  .iib .cards { gap: 16px; }
  .iib .card, .iib .card-feature { padding: 20px; }
  .iib .card-feature h3 { font-size: 24px; }

  .iib .marquee { padding: 16px 0; }

  .iib .layout { padding-block: 32px 72px; gap: 24px; }
  .iib .rail { padding: 20px; }
  .iib .step { padding: 40px 0; }
  .iib .step-head { gap: 12px; }
  .iib .step-num { font-size: 32px; min-width: 44px; }
  .iib .step h2 { font-size: 22px; line-height: 1.2; }
  .iib .goal { display: block; font-size: 13px; margin: 8px 0 20px; }
  .iib .place { padding: 20px; margin: 20px 0; }
  .iib .trap, .iib .done, .iib .note { padding: 14px 16px; margin-top: 20px; }
  .iib .step .ph { margin: 20px 0; }
  .iib .code { margin: 20px -16px; border-radius: 0; border-left: 0; border-right: 0; }
  .iib .code pre { padding: 16px; font-size: 12.5px; }
  .iib .tbl th, .iib .tbl td { padding: 10px 12px; }

  .iib .final { padding: 28px 20px; margin-top: 40px; }
  .iib .pager { margin-top: 40px; gap: 12px; }
  .iib .pager a { padding: 18px 20px; }

  .iib .footer { padding: 48px 0 32px; }
}