/* =====================================================================
   /resources/ — "Industrial Minimal" (Nothing.tech-inspired), DESIGN.md.
   Plain token CSS, no Tailwind: these pages are copied static into dist
   by scripts/copy-static.mjs (not vite inputs), so they cannot reference
   the hashed built stylesheet. This file mirrors the DESIGN.md tokens
   implemented for the homepage in src/styles.css.
   ===================================================================== */

:root {
  /* color — monochrome + one red */
  --bg: #f5f5f2;
  --surface: #ffffff;
  --ink: #111111;
  --ink-muted: #555555;
  --line: rgba(17, 17, 17, 0.14);
  --line-strong: rgba(17, 17, 17, 0.32);
  --accent: #d71921;
  --inverse-bg: #0e0e0e;
  --inverse-ink: #f5f5f2;
  --inverse-muted: rgba(245, 245, 242, 0.65);

  /* type */
  --font-display: "Doto", ui-monospace, monospace;
  --font-body: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Space Mono", ui-monospace, monospace;

  /* shape */
  --radius-box: 4px;
  --radius-pill: 999px;

  /* motion */
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --dur-fast: 150ms;
  --dur-med: 250ms;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px; /* body 16–18px per DESIGN.md */
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Floors */
:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.inverse-block :focus-visible {
  outline-color: var(--inverse-ink);
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto !important;
  }
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  transform: translateY(-300%);
  background: var(--ink);
  color: var(--inverse-ink);
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
}
.skip-link:focus {
  transform: none;
}

/* Type helpers */
.micro-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.material-symbols-outlined {
  font-variation-settings:
    "FILL" 0,
    "wght" 400,
    "GRAD" 0,
    "opsz" 24;
}

/* Tiny state utilities used by the mobile-menu script */
.hidden {
  display: none !important;
}
#mobile-menu.flex {
  display: flex;
}

/* Pill buttons (DESIGN.md Components) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.75rem 2rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  transition:
    background-color var(--dur-fast) ease,
    color var(--dur-fast) ease,
    border-color var(--dur-fast) ease;
}
.btn:active {
  transform: scale(0.97);
}
.btn-primary {
  background: var(--ink);
  color: var(--bg);
}
@media (hover: hover) and (pointer: fine) {
  /* accent use ①: primary CTA hover fill */
  .btn-primary:hover {
    background: var(--accent);
    color: #ffffff;
  }
}

/* Nav (sticky, hairline bottom rule) */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(245, 245, 242, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  max-width: 80rem;
  margin: 0 auto;
  padding: 16px 24px;
}
.nav-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
}
.nav-links {
  display: none;
  align-items: center;
  gap: 28px;
}
.nav-links a,
#mobile-menu a:not(.btn) {
  color: var(--ink-muted);
  text-decoration: none;
  padding: 14px 0;
  transition: color var(--dur-fast) ease;
}
.nav-links a:hover,
#mobile-menu a:not(.btn):hover {
  color: var(--ink);
}
.nav-cta {
  display: none;
}
#menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  border-radius: var(--radius-box);
  cursor: pointer;
  transition: background-color var(--dur-fast) ease;
}
#menu-toggle:hover {
  background: rgba(17, 17, 17, 0.05);
}
.nav-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink);
  transition:
    transform 300ms ease,
    opacity 300ms ease;
}
#mobile-menu {
  display: none;
  flex-direction: column;
  gap: 8px;
  padding: 8px 24px 24px;
  border-top: 1px solid var(--line);
  background: var(--bg);
}
@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
  .nav-cta {
    display: inline-flex;
    padding: 0.65rem 1.5rem;
  }
  #menu-toggle {
    display: none;
  }
  #mobile-menu {
    display: none !important;
  }
}

/* Article pages (long-form reading) */
.article-main {
  max-width: 48rem;
  margin: 0 auto;
  padding: 128px 24px 96px;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 0;
  margin-bottom: 24px;
  color: var(--ink-muted);
  text-decoration: none;
  transition: color var(--dur-fast) ease;
}
.back-link:hover {
  color: var(--ink);
}

article h1 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0 0 20px;
}
.article-meta {
  color: var(--ink-muted);
  border-top: 1px solid var(--line);
  padding-top: 16px;
  margin: 0 0 56px;
}
article h2 {
  font-weight: 700;
  font-size: 1.6rem;
  line-height: 1.25;
  text-wrap: balance;
  border-top: 1px solid var(--line);
  padding-top: 32px;
  margin: 56px 0 16px;
}
article h3 {
  font-weight: 600;
  font-size: 1.2rem;
  line-height: 1.3;
  text-wrap: balance;
  margin: 36px 0 12px;
}
article p,
article ul,
article ol {
  max-width: 65ch; /* long-form measure per DESIGN.md */
  text-wrap: pretty;
}
article p {
  margin: 0 0 20px;
}
article strong {
  font-weight: 600;
}
article a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--line-strong);
  transition:
    color var(--dur-fast) ease,
    text-decoration-color var(--dur-fast) ease;
}
@media (hover: hover) and (pointer: fine) {
  /* accent use ②: link underline/hover */
  article a:hover {
    color: var(--accent);
    text-decoration-color: var(--accent);
  }
}
article ul,
article ol {
  margin: 0 0 24px;
  padding-left: 1.4rem;
}
article li {
  margin-bottom: 10px;
}
article ul.checklist {
  list-style: none;
  padding-left: 0;
}
.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}
.check-icon {
  color: var(--ink-muted);
  font-size: 22px;
  margin-top: 2px;
  flex-shrink: 0;
}
article hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: 48px 0;
}
.article-byline {
  font-style: italic;
  font-size: 15px;
  color: var(--ink-muted);
}
.cta-box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-box);
  padding: 32px;
  margin-top: 32px;
}
.cta-box p {
  margin: 0;
}

/* Resources index */
.resources-main {
  max-width: 56rem;
  margin: 0 auto;
  padding: 128px 24px 96px;
}
.page-hero {
  margin-bottom: 64px;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-muted);
}
.live-dot {
  /* accent use ③ (index page): the one static red element */
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--accent);
}
.page-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  line-height: 1.05;
  font-size: clamp(2.5rem, 7vw, 6rem);
  margin: 16px 0 24px;
}
.hero-lede {
  max-width: 65ch;
  font-size: 1.15rem;
  color: var(--ink-muted);
  text-wrap: pretty;
  margin: 0;
}

/* Hairline card list (border-collapse look, no shadow cards) */
.card-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.card {
  display: block;
  background: var(--surface);
  padding: 40px 32px;
  color: var(--ink);
  text-decoration: none;
  transition: transform var(--dur-fast) var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .card:hover {
    position: relative;
    z-index: 1;
    transform: translateY(-1px);
    box-shadow: 0 0 0 1px var(--line-strong); /* hairline darkens, no drop shadow */
  }
}
.card-icon {
  display: block;
  font-size: 32px;
  color: var(--ink);
  margin-bottom: 16px;
}
.card h2 {
  font-weight: 700;
  font-size: 1.4rem;
  line-height: 1.3;
  text-wrap: balance;
  margin: 0 0 12px;
}
.card p {
  color: var(--ink-muted);
  max-width: 65ch;
  text-wrap: pretty;
  margin: 0 0 16px;
}
.card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.card-cta .material-symbols-outlined {
  font-size: 16px;
}

/* Footer (always inverted per DESIGN.md) */
.site-footer {
  background: var(--inverse-bg);
  color: var(--inverse-ink);
  margin-top: 64px;
  padding: 56px 24px;
}
.footer-inner {
  max-width: 80rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  text-align: center;
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.footer-copy {
  color: var(--inverse-muted);
  margin: 0;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
}
.footer-links a {
  color: var(--inverse-muted);
  text-decoration: none;
  padding: 14px 0;
  transition: color var(--dur-fast) ease;
}
.footer-links a:hover {
  color: var(--inverse-ink);
}
@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    text-align: left;
  }
}