/* ============================================================
   GROMA — site stylesheet
   Brand: Bauhaus civic-industrial. Obsidian / Cobalt / Ivory.
   Rules: rectangles only, no radii, no shadows, no gradients.
   Cobalt is the roof — use it sparingly.
   Source of truth for colours: Brand/graphics/tokens.css
   ============================================================ */

:root {
  --obsidian:      #131A27;
  --cobalt:        #1A4FC8;
  --cobalt-light:  #4A8FD4;
  --ivory:         #F7F5F0;

  --ink:        var(--obsidian);
  --ink-soft:   rgba(19, 26, 39, 0.72);
  --ink-faint:  rgba(19, 26, 39, 0.52);
  --hairline:   rgba(19, 26, 39, 0.16);
  --hairline-2: rgba(19, 26, 39, 0.30);
  --ivory-deep: #EFECE4;

  --font-display: "Inter Tight", "Inter", "IBM Plex Sans", "Helvetica Neue", system-ui, sans-serif;
  --font-body:    "Inter", "IBM Plex Sans", "Helvetica Neue", system-ui, sans-serif;
  --font-mono:    "IBM Plex Mono", "Consolas", monospace;

  --measure: 68ch;
  --gutter: clamp(20px, 4vw, 48px);
  --maxw: 1160px;
}

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

html { scroll-behavior: smooth; }

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

::selection { background: var(--cobalt); color: var(--ivory); }

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

a { color: inherit; }

/* ---- the roof: cobalt rail across the very top ---- */
.rail {
  height: 6px;
  background: var(--cobalt);
}

/* ------------------------------------------------------------
   Header
   ------------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--ivory);
  border-bottom: 1px solid var(--hairline);
}

.site-header .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.brand img { height: 30px; width: auto; }

.brand .divider {
  width: 1px;
  height: 26px;
  background: var(--hairline-2);
}

.brand .wordmark {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 17px;
  letter-spacing: 0.14em;
  color: var(--ink);
}

.site-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: clamp(12px, 2.2vw, 28px);
}

.site-nav a {
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--ink-soft);
}

.site-nav a:hover { color: var(--cobalt); }

.site-nav .lang {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 5px 10px;
  border: 1px solid var(--hairline-2);
  color: var(--ink);
}

.site-nav .lang:hover {
  border-color: var(--cobalt);
  color: var(--cobalt);
}

/* ------------------------------------------------------------
   Shared section scaffolding
   ------------------------------------------------------------ */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(64px, 9vw, 112px) var(--gutter);
  border-top: 1px solid var(--hairline);
}

.section:first-of-type { border-top: none; }

.kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.kicker .num { color: var(--cobalt); }

.kicker::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--hairline);
}

h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(26px, 3.6vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  max-width: 22ch;
  margin-bottom: 24px;
}

.lead {
  font-size: clamp(17px, 2vw, 19.5px);
  line-height: 1.65;
  color: var(--ink-soft);
  max-width: var(--measure);
}

.lead strong, .prose strong { color: var(--ink); font-weight: 600; }

/* ------------------------------------------------------------
   Hero
   ------------------------------------------------------------ */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(64px, 10vw, 128px) var(--gutter) clamp(56px, 8vw, 96px);
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: start;
}

.hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 40px;
}

.hero .roofline {
  width: 88px;
  height: 8px;
  background: var(--cobalt);
  margin-bottom: 28px;
}

h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(38px, 6.4vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.022em;
  margin-bottom: 28px;
}

.hero .lead { margin-bottom: 40px; }

.cta-row { display: flex; flex-wrap: wrap; gap: 14px; }

.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  padding: 13px 26px;
  border: 1px solid var(--obsidian);
}

.btn.solid { background: var(--obsidian); color: var(--ivory); }
.btn.solid:hover { background: var(--cobalt); border-color: var(--cobalt); }
.btn.ghost { color: var(--obsidian); }
.btn.ghost:hover { border-color: var(--cobalt); color: var(--cobalt); }

.hero-figure { padding-top: 10px; }
.hero-figure img { width: min(200px, 100%); height: auto; }
.hero-figure figcaption {
  margin-top: 22px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-faint);
  max-width: 26ch;
  border-top: 1px solid var(--hairline);
  padding-top: 14px;
}

/* ------------------------------------------------------------
   Card grids (pillars, method, works)
   ------------------------------------------------------------ */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--hairline);
  border-right: none;
  margin-top: 44px;
}

.grid-3 > .cell {
  border-right: 1px solid var(--hairline);
  padding: 30px 26px 34px;
}

.cell h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18.5px;
  letter-spacing: -0.008em;
  margin: 14px 0 10px;
}

.cell p { font-size: 15px; line-height: 1.62; color: var(--ink-soft); }

.cell .tick {
  width: 22px;
  height: 5px;
  background: var(--cobalt);
}

/* method list */
.method {
  margin-top: 44px;
  border-top: 1px solid var(--hairline);
}

.method .item {
  display: grid;
  grid-template-columns: 90px minmax(0, 320px) minmax(0, 1fr);
  gap: clamp(16px, 3vw, 40px);
  padding: 26px 0;
  border-bottom: 1px solid var(--hairline);
}

.method .idx {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cobalt);
  padding-top: 3px;
}

.method h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18.5px;
  letter-spacing: -0.008em;
}

.method p { font-size: 15.5px; color: var(--ink-soft); }

/* works */
.works {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--hairline);
  border-right: none;
}

.work {
  border-right: 1px solid var(--hairline);
  padding: 30px 26px 34px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.work:hover { background: var(--ivory-deep); }

.work .status {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: flex;
  align-items: center;
  gap: 8px;
}

.work .status::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--cobalt);
  display: inline-block;
}

.work .status.dev::before { background: transparent; border: 1px solid var(--hairline-2); }

.work h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 21px;
  letter-spacing: -0.01em;
}

.work .domain {
  font-size: 13.5px;
  color: var(--cobalt);
  font-weight: 500;
}

.work p { font-size: 14.5px; line-height: 1.62; color: var(--ink-soft); flex: 1; }

.work .url {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-faint);
  border-top: 1px solid var(--hairline);
  padding-top: 12px;
}

.work:hover .url { color: var(--cobalt); }

.note {
  margin-top: 28px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-faint);
  max-width: var(--measure);
  padding-left: 16px;
  border-left: 3px solid var(--cobalt);
}

/* pull quote */
.pull {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 3px solid var(--obsidian);
  max-width: 30ch;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1.3;
  letter-spacing: -0.012em;
}

.prose { max-width: var(--measure); }
.prose p { margin-bottom: 18px; color: var(--ink-soft); }
.prose p:last-child { margin-bottom: 0; }

.name-note {
  margin-top: 44px;
  font-size: 14px;
  color: var(--ink-faint);
  max-width: var(--measure);
  border-top: 1px solid var(--hairline);
  padding-top: 18px;
}

/* ------------------------------------------------------------
   Article teaser
   ------------------------------------------------------------ */
.article-teaser {
  margin-top: 44px;
  border: 1px solid var(--hairline);
  padding: clamp(26px, 4vw, 44px);
  display: block;
  text-decoration: none;
  color: inherit;
}

.article-teaser:hover { background: var(--ivory-deep); }

.article-teaser .meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 18px;
}

.article-teaser h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  max-width: 24ch;
  margin-bottom: 14px;
}

.article-teaser p {
  color: var(--ink-soft);
  max-width: var(--measure);
  margin-bottom: 20px;
}

.article-teaser .read {
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 500;
  color: var(--cobalt);
}

/* ------------------------------------------------------------
   Contact
   ------------------------------------------------------------ */
.contact-line {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 16px 40px;
}

.contact-line a.mail {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(20px, 3vw, 30px);
  letter-spacing: -0.01em;
  text-decoration: none;
  border-bottom: 3px solid var(--cobalt);
  padding-bottom: 3px;
}

.contact-line a.mail:hover { color: var(--cobalt); }

/* ------------------------------------------------------------
   Footer
   ------------------------------------------------------------ */
.site-footer {
  background: var(--obsidian);
  color: rgba(247, 245, 240, 0.78);
  border-top: 6px solid var(--cobalt);
  margin-top: clamp(64px, 9vw, 112px);
}

.site-footer .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(48px, 6vw, 72px) var(--gutter) 40px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 40px;
  align-items: start;
}

.site-footer img { height: 44px; width: auto; margin-bottom: 20px; }

.site-footer .tag {
  font-size: 14px;
  max-width: 44ch;
  line-height: 1.6;
}

.site-footer nav {
  display: grid;
  gap: 10px;
  justify-items: end;
  text-align: right;
}

.site-footer nav a {
  font-size: 13.5px;
  text-decoration: none;
  color: rgba(247, 245, 240, 0.66);
}

.site-footer nav a:hover { color: var(--cobalt-light); }

.site-footer .legal {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(247, 245, 240, 0.14);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(247, 245, 240, 0.5);
}

/* ------------------------------------------------------------
   Article page
   ------------------------------------------------------------ */
.article-head {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(56px, 8vw, 96px) var(--gutter) 0;
}

.article-head .roofline {
  width: 88px;
  height: 8px;
  background: var(--cobalt);
  margin-bottom: 28px;
}

.article-head .meta {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 24px;
}

.article-head h1 {
  font-size: clamp(32px, 5.2vw, 54px);
  max-width: 20ch;
}

.article-head .dek {
  font-size: clamp(18px, 2.2vw, 21px);
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: var(--measure);
  margin-bottom: 8px;
}

.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(40px, 6vw, 64px) var(--gutter) clamp(64px, 9vw, 96px);
  font-size: 17.5px;
  line-height: 1.72;
}

.article-body > * + * { margin-top: 22px; }

.article-body p { color: rgba(19, 26, 39, 0.86); }

.article-body h2 {
  font-size: clamp(22px, 3vw, 28px);
  margin-top: 52px;
  margin-bottom: 0;
  max-width: none;
}

.article-body h2 .sec {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.62em;
  color: var(--cobalt);
  display: block;
  margin-bottom: 8px;
  letter-spacing: 0.1em;
}

.article-body a { color: var(--cobalt); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.article-body a:hover { text-decoration-thickness: 2px; }

.article-body blockquote {
  border-left: 3px solid var(--cobalt);
  padding: 6px 0 6px 22px;
  font-family: var(--font-display);
  font-weight: 550;
  font-size: 1.12em;
  line-height: 1.5;
  letter-spacing: -0.008em;
  color: var(--ink);
}

.article-body ul, .article-body ol { padding-left: 26px; }
.article-body li { margin-bottom: 10px; color: rgba(19, 26, 39, 0.86); }
.article-body li::marker { color: var(--cobalt); font-family: var(--font-mono); font-size: 0.9em; }

.article-body hr {
  border: none;
  border-top: 1px solid var(--hairline);
  margin: 44px 0;
}

.article-body .sources {
  border-top: 1px solid var(--hairline);
  margin-top: 52px;
  padding-top: 24px;
  font-size: 14px;
  color: var(--ink-faint);
}

.article-body .sources p { color: var(--ink-faint); margin-bottom: 8px; }

.article-body .signature {
  margin-top: 44px;
  border-top: 3px solid var(--obsidian);
  padding-top: 18px;
  max-width: 40ch;
}

.article-body .signature .who {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
}

.article-body .signature p { font-size: 14.5px; color: var(--ink-faint); }

/* ------------------------------------------------------------
   Responsive
   ------------------------------------------------------------ */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-figure { display: none; }
  .grid-3, .works { grid-template-columns: 1fr; border-right: 1px solid var(--hairline); }
  .grid-3 > .cell, .work { border-right: none; border-bottom: 1px solid var(--hairline); }
  .grid-3 > .cell:last-child, .work:last-child { border-bottom: none; }
  .method .item { grid-template-columns: 56px 1fr; }
  .method .item p { grid-column: 2; }
  .site-footer .inner { grid-template-columns: 1fr; }
  .site-footer nav { justify-items: start; text-align: left; }
}

@media (max-width: 640px) {
  .site-header .inner { height: auto; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
  .site-nav { gap: 12px 16px; }
}