/* ============================================
   plankti.dev — shared stylesheet
   Used by every page on the site.
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&family=Inter:wght@400;500&display=swap');

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

:root {
  --bg: #131410;
  --bg2: #1a1b16;
  --bg3: #222318;
  --accent: #F2C230;
  --accent-dim: #b8911f;
  --text: #e6e3d8;
  --text-dim: #9b988d;
  --text-bright: #f5f3ea;
  --border: #2e2e26;
  --mono: 'JetBrains Mono', monospace;
  --body-font: 'Inter', sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body-font);
  font-size: 15px;
  line-height: 1.7;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

/* ---------- Navigation ---------- */

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 52px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav-logo {
  color: var(--accent);
  font-weight: 500;
  font-size: 13px;
  text-decoration: none;
}

.nav-logo:hover {
  color: var(--text-bright);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-dim);
  transition: color 0.15s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-bright);
  text-decoration: none;
}

.nav-links a.active {
  color: var(--accent);
}

/* ---------- Hero (homepage) ---------- */

.hero {
  position: relative;
  overflow: hidden;
  padding: 3.5rem 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.35;
}

.hero-inner {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 2.5rem;
  align-items: center;
}

.photo-frame {
  width: 140px;
  height: 140px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-corner {
  position: absolute;
  width: 10px;
  height: 10px;
  border: 1px solid var(--accent);
  z-index: 2;
}

.photo-corner.tl { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.photo-corner.br { bottom: -1px; right: -1px; border-left: none; border-top: none; }

.hero-content {
  max-width: 560px;
}

.hero-top-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.social-row {
  display: flex;
  gap: 0.6rem;
  flex-shrink: 0;
}

.social-btn {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text-bright);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: border-color 0.15s, color 0.15s;
}

.social-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

.hero-name {
  font-family: var(--mono);
  font-size: clamp(26px, 5vw, 40px);
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.hero-title {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 1.2rem;
}

.hero-desc {
  font-size: 14.5px;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 1.6rem;
}

.hero-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---------- Buttons ---------- */

.btn {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 9px 18px;
  border: 1px solid;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
}

.btn-primary {
  background: var(--accent);
  color: #0e0e0b;
  border-color: var(--accent);
  font-weight: 500;
}

.btn-primary:hover {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  text-decoration: none;
}

.btn-secondary {
  background: var(--bg3);
  color: var(--text-bright);
  border-color: var(--text-dim);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

/* ---------- Page layout ---------- */

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.section-gap {
  margin-bottom: 3.5rem;
}

.section-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.page-head {
  margin-bottom: 2.5rem;
}

.page-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.page-title {
  font-family: var(--mono);
  font-size: clamp(24px, 4vw, 32px);
  color: var(--text-bright);
  font-weight: 500;
}

/* ---------- Notes list ---------- */

.notes-grid {
  display: flex;
  flex-direction: column;
}

.note-row {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  align-items: baseline;
  gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border);
}

.note-row:first-child {
  border-top: 1px solid var(--border);
}

.note-row.is-hidden {
  display: none;
}

.note-date {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
}

.note-title {
  font-size: 14px;
  color: var(--text-bright);
}

.note-title:hover {
  color: var(--accent);
  text-decoration: none;
}

.note-tag,
.tag {
  font-family: var(--mono);
  font-size: 10px;
  padding: 2px 8px;
  background: var(--bg3);
  color: var(--text-dim);
  border: 1px solid var(--border);
  white-space: nowrap;
}

/* ---------- Tag filter pills ---------- */

.filter-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  font-family: var(--mono);
  font-size: 11px;
  flex-wrap: wrap;
}

.filter-pill {
  padding: 5px 12px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  background: none;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
}

.filter-pill:hover {
  border-color: var(--text-dim);
  color: var(--text-bright);
}

.filter-pill.active {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- Downloads / tool cards ---------- */

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.tool-card {
  background: var(--bg);
  padding: 1.25rem;
}

.tool-card:hover {
  background: var(--bg2);
}

.tool-icon {
  font-family: var(--mono);
  font-size: 22px;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.tool-name {
  font-size: 13px;
  color: var(--text-bright);
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.tool-desc {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 0.8rem;
}

.tool-download {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
}

/* ---------- Links page / find me ---------- */

.links-row {
  display: flex;
  flex-direction: column;
}

.link-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0.75rem;
  margin: 0 -0.75rem;
  border-bottom: 1px solid var(--border);
  color: inherit;
  text-decoration: none;
  transition: background 0.15s;
}

.link-item:hover {
  background: var(--bg2);
  text-decoration: none;
}

.link-item:hover .link-arrow {
  color: var(--accent-dim);
}

.link-item:first-child {
  border-top: 1px solid var(--border);
}

.link-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.link-platform {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  width: 80px;
}

.link-label {
  font-size: 14px;
  color: var(--text-bright);
}

.link-arrow {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
}

/* ---------- Portfolio / work grid ---------- */

.proj-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.proj-card {
  background: var(--bg);
  overflow: hidden;
}

.proj-card.is-hidden {
  display: none;
}

.proj-thumb {
  width: 100%;
  aspect-ratio: 16 / 10;
  display: block;
  border-bottom: 1px solid var(--border);
  background: var(--bg3);
}

.proj-thumb svg {
  width: 100%;
  height: 100%;
  display: block;
}

.proj-body {
  padding: 1rem 1.1rem;
}

.proj-type {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.proj-name {
  font-size: 14px;
  color: var(--text-bright);
  font-weight: 500;
  margin-bottom: 0.3rem;
}

.proj-desc {
  font-size: 12.5px;
  color: var(--text-dim);
  line-height: 1.5;
}

.proj-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.8rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-dim);
}

.featured {
  grid-column: 1 / -1;
}

.featured .proj-thumb {
  aspect-ratio: 21 / 9;
}

/* ---------- Article / note detail page ---------- */

.breadcrumb {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  letter-spacing: 0.03em;
}

.breadcrumb a {
  color: var(--text-dim);
}

.breadcrumb a:hover {
  color: var(--accent);
}

.post-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.post-title {
  font-family: var(--mono);
  font-size: clamp(22px, 4vw, 30px);
  color: var(--text-bright);
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: 0.8rem;
}

.post-sub {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 2rem;
}

.post-body p {
  margin-bottom: 1.2rem;
  color: var(--text);
}

.post-body h3 {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--text-bright);
  margin: 2rem 0 0.8rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

.figure {
  margin: 1.8rem 0;
}

.figure img {
  width: 100%;
  border: 1px solid var(--border);
}

.figure-cap {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 0.5rem;
  padding-left: 0.6rem;
  border-left: 2px solid var(--accent);
}

.code-block {
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 1rem 1.2rem;
  margin: 1.5rem 0;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text);
  overflow-x: auto;
  line-height: 1.6;
  white-space: pre;
}

.code-block .c-kw { color: var(--accent); }
.code-block .c-cm { color: var(--text-dim); }

.video-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--bg3);
  border: 1px solid var(--border);
  margin: 1.8rem 0;
  overflow: hidden;
}

.video-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.tags-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 2.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

/* ---------- Footer ---------- */

footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 2rem;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .photo-frame {
    width: 96px;
    height: 96px;
  }
  nav {
    padding: 0 1rem;
  }
  .nav-links {
    gap: 1.2rem;
  }
  main {
    padding: 2rem 1.2rem;
  }
  .note-row {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }
}