/* Humble Tools: a warm-paper tool catalog.
   Shell stays neutral; each tool wears one colour sampled from its own icon. */

:root {
  --paper: #fbfaf6;
  --paper-2: #f2efe7;
  --ink: #17160f;
  --ink-soft: #37352b;
  --muted: #6e6b60;
  --line: #e5e1d5;
  --line-strong: #d8d3c4;
  --accent: #17160f; /* per-tool override */

  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "Space Mono", ui-monospace, "SFMono-Regular", monospace;

  --page: 1080px;
  --gutter: clamp(20px, 5vw, 48px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; }

a { color: inherit; }

::selection { background: #17160f; color: var(--paper); }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  border-radius: 8px;
  z-index: 20;
}
.skip:focus { left: 12px; top: 12px; }

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- header ---------- */
.site-header {
  max-width: var(--page);
  margin: 0 auto;
  padding: 22px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.wordmark__mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1;
  padding-bottom: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 15px;
}
.site-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  transition: color 0.15s ease;
}
.site-nav a:hover { color: var(--ink); }

.pill {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 6px 12px;
  white-space: nowrap;
}

/* ---------- shared ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 22px;
}

/* ---------- hero ---------- */
.hero {
  max-width: var(--page);
  margin: 0 auto;
  padding: clamp(48px, 9vw, 96px) var(--gutter) clamp(36px, 6vw, 64px);
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(38px, 6.4vw, 74px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0;
  max-width: 15ch;
}

.hero__lede {
  margin: 26px 0 0;
  max-width: 54ch;
  font-size: clamp(17px, 2vw, 20px);
  color: var(--ink-soft);
}

.hero__meta {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 13px;
  background: var(--paper);
}
.tag--dot { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-soft); }
.tag--dot::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #34c759;
  box-shadow: 0 0 0 3px rgba(52,199,89,0.16);
}

.rail {
  list-style: none;
  margin: clamp(44px, 7vw, 76px) 0 0;
  padding: 0;
  display: flex;
  gap: clamp(12px, 2vw, 20px);
  flex-wrap: wrap;
}
.rail__item {
  width: clamp(84px, 13vw, 116px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 1px 0 rgba(23,22,15,0.03);
  animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both;
  animation-delay: calc(var(--i) * 90ms + 120ms);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.rail__item:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.rail__item img { width: 64%; height: 64%; }

@keyframes rise {
  from { opacity: 0; transform: translateY(16px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ---------- catalog ---------- */
.catalog {
  max-width: var(--page);
  margin: 0 auto;
  padding: clamp(24px, 4vw, 40px) var(--gutter) clamp(40px, 7vw, 72px);
  border-top: 1px solid var(--line);
}

.tool {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: clamp(20px, 4vw, 48px);
  align-items: start;
  padding: clamp(28px, 4vw, 44px) 0;
  border-bottom: 1px solid var(--line);
}
.tool:last-child { border-bottom: 0; }

.tool__icon {
  position: sticky;
  top: 28px;
}
.tool__icon img {
  width: 100%;
  height: auto;
  border-radius: 26px;
  border: 1px solid var(--line);
  box-shadow: 0 10px 30px -18px color-mix(in srgb, var(--accent) 60%, transparent);
}

.tool__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

.tool__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 34px);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
  position: relative;
  display: inline-block;
}
.tool__name::after {
  content: "";
  display: block;
  width: 46px;
  height: 3px;
  margin-top: 12px;
  border-radius: 3px;
  background: var(--accent);
}

.tool__line {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(17px, 2.1vw, 20px);
  color: var(--ink);
  margin: 16px 0 0;
}

.tool__desc {
  margin: 12px 0 0;
  max-width: 60ch;
  color: var(--ink-soft);
}

.badge {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  background: color-mix(in srgb, var(--accent) 8%, var(--paper));
  border-radius: 999px;
  padding: 5px 11px;
  white-space: nowrap;
}

.spec {
  margin: 22px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  padding-top: 20px;
  border-top: 1px dashed var(--line-strong);
}
.spec div { display: flex; flex-direction: column; gap: 3px; }
.spec dt {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.spec dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
}

/* ---------- principles ---------- */
.principles {
  background: var(--paper-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: clamp(48px, 7vw, 84px) 0;
}
.principles .eyebrow {
  max-width: var(--page);
  margin: 0 auto 30px;
  padding: 0 var(--gutter);
}

.principles__grid {
  max-width: var(--page);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 4vw, 48px);
}
.principle h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}
.principle p { margin: 0; color: var(--ink-soft); max-width: 40ch; }

/* ---------- footer ---------- */
.site-footer {
  max-width: var(--page);
  margin: 0 auto;
  padding: clamp(36px, 5vw, 56px) var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}
.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
}
.site-footer__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
  text-align: right;
}
.site-footer__note a { color: var(--ink); text-underline-offset: 3px; }

/* ---------- responsive ---------- */
@media (max-width: 720px) {
  .site-nav a { display: none; }
  .tool { grid-template-columns: 1fr; }
  .tool__icon { position: static; width: 96px; }
  .tool__icon img { border-radius: 22px; }
  .principles__grid { grid-template-columns: 1fr; }
  .site-footer { flex-direction: column; align-items: flex-start; }
  .site-footer__note { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rail__item { animation: none; }
  .rail__item:hover { transform: none; }
}