/* ════════════════════════════════════════════════════════════════════
   MD Naimur Rashid · portfolio v5
   Concept: drafting paper. Hairline blueprint grids · serif display ·
   navy ink · terracotta accent · everything sized like a measured drawing.
   ──────────────────────────────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ─────── reset ─────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }

input, textarea {
  font: inherit;
  color: inherit;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.7rem 0.95rem;
  outline: none;
  width: 100%;
  display: block;
  transition: border-color 0.18s, box-shadow 0.18s;
}
input:focus, textarea:focus {
  border-color: var(--ink);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ─────── theme ─────── */
:root {
  /* drafting paper */
  --paper:        #f5f1e8;
  --paper-warm:   #f0ead9;
  --paper-card:   #fbf8f0;
  --paper-deep:   #e9e2cf;

  /* hairline rules / blueprint grid */
  --rule:         #d6cfba;
  --rule-soft:    #e3dcc7;
  --grid:         rgba(31, 50, 87, 0.05);

  /* navy ink */
  --ink:          #1f3257;
  --ink-soft:     #2e426e;
  --ink-mid:      #5b698a;
  --ink-dim:      #8b95ae;
  --ink-faint:    #b6becc;

  /* terracotta accent (drawing pencil red) */
  --accent:       #c2502b;
  --accent-soft:  #d36a44;
  --accent-bg:    rgba(194, 80, 43, 0.08);
  --accent-glow:  rgba(194, 80, 43, 0.18);

  /* draftsman blue */
  --blue:         #2e5fa3;

  --max:          78rem;
  --serif:        'DM Serif Display', 'Georgia', serif;
  --sans:         'DM Sans', system-ui, -apple-system, sans-serif;
  --mono:         'JetBrains Mono', ui-monospace, monospace;
}

:root[data-theme="dark"] {
  --paper:        #161922;
  --paper-warm:   #1a1d27;
  --paper-card:   #1e2230;
  --paper-deep:   #12141c;
  --rule:         #2c3144;
  --rule-soft:    #232737;
  --grid:         rgba(180, 200, 240, 0.06);

  --ink:          #f0e8d4;
  --ink-soft:     #d8d0bd;
  --ink-mid:      #a3a99e;
  --ink-dim:      #777f74;
  --ink-faint:    #4a5052;

  --accent:       #e07853;
  --accent-soft:  #ed9474;
  --accent-bg:    rgba(224, 120, 83, 0.12);
  --accent-glow:  rgba(224, 120, 83, 0.25);

  --blue:         #6b9bd6;
}

body {
  background: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: -1px -1px;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.3s, color 0.3s;
}

::selection { background: var(--accent); color: var(--paper); }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--rule); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-faint); }

/* ─────── typography ─────── */
h1, h2, h3, h4, h5 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mid);
  font-weight: 500;
}

.lead {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  line-height: 1.4;
  color: var(--ink-soft);
}

.italic { font-style: italic; }
.serif { font-family: var(--serif); }
.mono  { font-family: var(--mono); }

/* ─────── layout helpers ─────── */
.wrap {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: 1.5rem;
}
@media (min-width: 768px) { .wrap { padding-inline: 2.5rem; } }
@media (min-width: 1100px) { .wrap { padding-inline: 4rem; } }

/* ─────── nav · drawing-stamp top bar ─────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 241, 232, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
:root[data-theme="dark"] .nav { background: rgba(22, 25, 34, 0.88); }
.nav.is-scrolled { border-bottom-color: var(--rule); }
.nav-inner {
  max-width: var(--max);
  margin-inline: auto;
  padding: 0.95rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
@media (min-width: 768px) { .nav-inner { padding: 1.1rem 2.5rem; } }
@media (min-width: 1100px) { .nav-inner { padding: 1.1rem 4rem; } }

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55rem;
  font-family: var(--serif);
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.brand .colon { color: var(--accent); }
.brand-sub {
  display: none;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mid);
}
@media (min-width: 768px) { .brand-sub { display: inline; } }

.nav-links {
  display: none;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  font-family: var(--mono);
  font-size: 0.78rem;
}
@media (min-width: 900px) { .nav-links { display: flex; } }
.nav-links a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  color: var(--ink-mid);
  transition: color 0.15s;
  position: relative;
  padding: 0.25rem 0;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.is-active { color: var(--accent); }
.nav-links a.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -3px;
  height: 1px;
  background: var(--accent);
}
.nav-links .num {
  font-size: 0.66rem;
  color: var(--ink-faint);
  letter-spacing: 0.12em;
}

.nav-actions { display: flex; align-items: center; gap: 0.5rem; }

.icon-btn {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--ink-mid);
  background: var(--paper-card);
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.icon-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.icon-btn svg { width: 16px; height: 16px; }

.menu-btn { display: inline-flex; }
@media (min-width: 900px) { .menu-btn { display: none; } }

.progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  background: var(--accent);
  width: 0;
  z-index: 60;
  transition: width 0.05s linear;
}

/* mobile drawer */
.drawer {
  position: fixed;
  inset: 0;
  background: var(--paper);
  z-index: 80;
  padding: 5rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transform: translateY(-100%);
  transition: transform 0.32s cubic-bezier(.2, .8, .2, 1);
  overflow-y: auto;
}
.drawer.is-open { transform: none; }
.drawer .close {
  position: absolute;
  top: 1.1rem; right: 1.5rem;
  width: 36px; height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--rule);
  border-radius: 999px;
}
.drawer a {
  font-family: var(--serif);
  font-size: 1.7rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--rule-soft);
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
}
.drawer a .num {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.04em;
  font-weight: 500;
}

/* ─────── hero · title block + dimension labels ─────── */
.hero {
  padding: 2.5rem 0 2rem;
  border-bottom: 1px solid var(--rule);
  position: relative;
}
@media (min-width: 768px) { .hero { padding: 3.5rem 0 3.5rem; } }

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}
@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: center;
  }
}

/* on mobile the portrait comes AFTER the text — order swap */
.hero-grid > div:first-child { order: 1; }
.hero-grid > .reveal:nth-child(2) { order: 2; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
  padding: 0.32rem 0.85rem;
  border: 1px solid var(--accent);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-bg);
}
.hero-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.45; } }

.hero h1 {
  font-size: clamp(2.6rem, 8vw, 6rem);
  line-height: 0.96;
  letter-spacing: -0.025em;
  margin-bottom: 1.5rem;
}
.hero h1 em {
  font-style: italic;
  color: var(--accent);
  font-weight: 400;
}
.hero-lead { max-width: 38rem; margin-bottom: 2rem; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 0.6rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.78rem 1.3rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  border: 1px solid var(--ink);
  border-radius: 2px;
  color: var(--ink);
  background: var(--paper-card);
  cursor: pointer;
  transition: background 0.18s, color 0.18s, transform 0.18s, border-color 0.18s, box-shadow 0.18s;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn:active { transform: scale(0.97); }

.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: transparent; color: var(--ink); }

.btn--accent {
  border-color: var(--accent);
  color: var(--accent);
  background: transparent;
}
.btn--accent:hover {
  background: var(--accent);
  color: var(--paper);
}

.btn svg { width: 13px; height: 13px; }

/* hero portrait card */
.hero-portrait {
  position: relative;
  width: 100%;
  max-width: 360px;
  aspect-ratio: 4/5;
  border: 1px solid var(--rule);
  background: var(--paper-card);
  padding: 1rem;
  margin-inline: auto;   /* always centred, regardless of column */
  box-shadow: 0 24px 48px -32px rgba(31, 50, 87, 0.25);
}
.hero-portrait::before,
.hero-portrait::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 1px solid var(--accent);
}
.hero-portrait::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.hero-portrait::after  { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }
.hero-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(15%) sepia(8%) contrast(1.02);
  transition: filter 0.5s;
}
.hero-portrait:hover img { filter: none; }

.hero-portrait-stamp {
  position: absolute;
  bottom: -12px;
  left: 1rem;
  right: 1rem;           /* prevent overflow on narrow screens */
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.85rem;
  background: var(--paper-card);
  border: 1px solid var(--accent);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: max-content; /* shrink back to content width on large screens */
}
.hero-portrait-stamp::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--accent);
}

/* dimension labels under hero */
.hero-dims {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px dashed var(--rule);
  font-family: var(--mono);
  font-size: 0.74rem;
}
.hero-dims .dim {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.hero-dims .lbl {
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.hero-dims .val {
  font-family: var(--serif);
  font-size: 1.15rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.hero-dims .val .accent { color: var(--accent); }

/* ─────── section structure ─────── */
section[data-section] {
  padding: 5rem 0;
  border-bottom: 1px solid var(--rule);
}
@media (min-width: 768px) { section[data-section] { padding: 7rem 0; } }

.section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 3.5rem;
  position: relative;
}
@media (min-width: 768px) {
  .section-head {
    grid-template-columns: 9rem 1fr;
    gap: 3rem;
    align-items: start;
  }
}

.section-head .index {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--ink-mid);
  position: relative;
}
.section-head .index .num {
  display: block;
  font-family: var(--serif);
  font-style: italic;
  font-size: 2.2rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.4rem;
}
.section-head .index .lbl {
  text-transform: uppercase;
  font-size: 0.62rem;
  letter-spacing: 0.22em;
}
.section-head .body h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.02em;
  margin-bottom: 0.85rem;
}
.section-head .body p {
  color: var(--ink-mid);
  max-width: 38rem;
}

/* ─────── about · two-column with side meta ─────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr 20rem;
    gap: 3rem;
    align-items: start;
  }
}
@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 22rem;
    gap: 3.5rem;
    align-items: start;
  }
}
.about-text p { margin-bottom: 1.1rem; color: var(--ink-soft); font-size: 1.05rem; }
.about-text p:last-child { margin-bottom: 0; }
.about-text strong { color: var(--ink); font-weight: 600; }

.about-side {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.about-card {
  padding: 1.4rem 1.4rem;
  border: 1px solid var(--rule);
  background: var(--paper-card);
  position: relative;
}
.about-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--accent);
}
.about-card h4 {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mid);
  margin-bottom: 1rem;
  font-weight: 500;
}
.about-card ul { list-style: none; display: flex; flex-direction: column; gap: 0.7rem; }
.about-card li {
  display: block;
  position: relative;
  padding-left: 1rem;
  font-family: var(--sans);
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--ink-soft);
}
.about-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px; height: 6px;
  border: 1px solid var(--accent);
  flex-shrink: 0;
}
.about-card li strong { color: var(--ink); font-weight: 600; }

/* tools chips */
.tools-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1.5rem;
}
.tool-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 1rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--paper-card);
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--ink-mid);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.tool-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-bg);
}
.tool-chip img {
  width: 16px;
  height: 16px;
  display: inline-block;
  flex-shrink: 0;
  max-width: 16px;
  filter: grayscale(100%) brightness(0.4);
  transition: filter 0.15s;
}
:root[data-theme="dark"] .tool-chip img { filter: invert(1) brightness(1.2); }
:root[data-theme="dark"] .tool-chip:hover img { filter: none; }
.tool-chip:hover img { filter: none; }

/* ─────── github ─────── */
.gh-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 768px) {
  .gh-wrap {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  /* stats: 4 cells in one row at tablet */
  .gh-stats { grid-template-columns: repeat(4, 1fr); }
  .gh-stat:nth-child(2n) { border-right: 1px solid var(--rule); }
  .gh-stat:nth-child(n+3) { border-bottom: 0; }
  .gh-stat:nth-child(4) { border-right: 0; }
  .gh-stat:last-child { border-bottom: 0; }
}
@media (min-width: 900px) {
  .gh-wrap {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
  /* reset stats back to 2x2 grid inside its column */
  .gh-stats { 
    grid-template-columns: repeat(2, 1fr); 
    position: sticky;
    top: 120px;
  }
  .gh-stat:nth-child(2n) { border-right: 0; }
  .gh-stat:nth-child(n+3) { border-bottom: 0; }
}
.gh-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--rule);
  background: var(--paper-card);
  align-self: start;
}

.gh-stat {
  padding: 1.5rem 1.5rem;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  position: relative;
}
.gh-stat:nth-child(2n) { border-right: 0; }
.gh-stat:nth-child(n+3) { border-bottom: 0; }
.gh-stat .num {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1;
  color: var(--ink);
  font-weight: 400;
}
.gh-stat .lbl {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mid);
}
.gh-stat::after {
  content: "";
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  width: 5px;
  height: 5px;
  border: 1px solid var(--accent);
}
.gh-skel {
  display: inline-block;
  width: 2.5ch;
  height: 1em;
  background: linear-gradient(90deg, var(--rule), var(--rule-soft), var(--rule));
  background-size: 200% 100%;
  animation: skel 1.2s ease-in-out infinite;
  border-radius: 2px;
}
@keyframes skel { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

.gh-repos {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--rule);
}
.gh-repo {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.1rem 0.5rem 1.1rem 0;
  border-bottom: 1px solid var(--rule);
  transition: padding-left 0.2s, background 0.18s;
}
.gh-repo:hover {
  padding-left: 0.5rem;
  background: var(--paper-card);
}
.gh-repo .top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.85rem;
  flex-wrap: wrap;
}
.gh-repo h4 {
  font-family: var(--mono);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.gh-repo:hover h4 { color: var(--accent); }
.gh-repo p {
  color: var(--ink-mid);
  font-size: 0.9rem;
  line-height: 1.45;
}
.gh-repo .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--ink-dim);
}
.gh-repo .meta span { display: inline-flex; align-items: center; gap: 0.32rem; }
.gh-repo .meta svg { width: 11px; height: 11px; }
.gh-repo .meta .lang-dot {
  width: 7px; height: 7px;
  border-radius: 999px;
  background: var(--blue);
  display: inline-block;
}

/* ─────── work · staggered grid with index ─────── */
.work-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 2rem;
}

/* filter-only group scrolls horizontally on narrow screens */
.work-filters-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  flex: 1 1 auto;
}
@media (max-width: 540px) {
  .work-controls { flex-wrap: wrap; gap: 0.4rem; }
  /* Let filter buttons scroll, search takes full row */
  .work-search { flex: 1 1 100%; order: 99; margin-left: 0; }
}
.work-filter {
  padding: 0.42rem 0.95rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  border: 1px solid var(--rule);
  border-radius: 2px;
  color: var(--ink-mid);
  background: var(--paper-card);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.work-filter:hover { color: var(--ink); border-color: var(--ink); }
.work-filter.is-active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.work-search {
  position: relative;
  flex: 1 1 200px;
  min-width: 180px;
  margin-left: auto;
}
.work-search input {
  width: 100%;
  padding: 0.45rem 2rem 0.45rem 2rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  border-radius: 2px;
}
.work-search .ic {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-faint);
  pointer-events: none;
}
.work-search .ic svg { width: 13px; height: 13px; }
.work-search .clear {
  position: absolute;
  right: 0.4rem;
  top: 50%;
  transform: translateY(-50%);
  width: 22px; height: 22px;
  border-radius: 999px;
  font-size: 1rem;
  color: var(--ink-faint);
  display: none;
  align-items: center;
  justify-content: center;
}
.work-search.has-value .clear { display: inline-flex; }
.work-search .clear:hover { background: var(--paper-deep); color: var(--ink); }

.work-count {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--ink-dim);
}

.work-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--rule);
}
@media (min-width: 700px) { .work-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .work-grid { grid-template-columns: repeat(3, 1fr); } }

.proj {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.6rem 1.5rem;
  border-bottom: 1px solid var(--rule);
  background: transparent;
  text-decoration: none;
  color: inherit;
  transition: background 0.22s, transform 0.25s;
  overflow: hidden;
}
@media (min-width: 700px) { .proj:not(:nth-child(2n+0)) { border-right: 1px solid var(--rule); } }
@media (min-width: 1100px) {
  .proj:nth-child(3n+1), .proj:nth-child(3n+2) { border-right: 1px solid var(--rule); }
  .proj:not(:nth-child(3n+1)):not(:nth-child(3n+2)) { border-right: 0; }
}
.proj::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--paper-card);
  opacity: 0;
  transition: opacity 0.22s;
  pointer-events: none;
}
.proj:hover::before { opacity: 1; }
.proj > * { position: relative; }
.proj[hidden] { display: none; }

.proj .num {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
  margin-bottom: 0.65rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.proj .num .featured {
  color: var(--accent);
  font-weight: 600;
}

.proj h3 {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 0.55rem;
  transition: color 0.18s;
}
.proj:hover h3 { color: var(--accent); }
.proj .cat {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mid);
  margin-bottom: 0.55rem;
}
.proj p {
  color: var(--ink-mid);
  font-size: 0.92rem;
  line-height: 1.55;
  margin-bottom: 1rem;
  flex: 1 1 auto;
}
.proj .tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.32rem;
  margin-bottom: 1rem;
}
.proj .tech span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.18rem 0.5rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--paper);
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--ink-mid);
}
.proj .tech img {
  width: 10px; height: 10px;
  display: inline-block;
  flex-shrink: 0;
  max-width: 10px;
  filter: grayscale(100%) brightness(0.4);
}
:root[data-theme="dark"] .proj .tech img { filter: invert(1) brightness(1.2); }
.proj .links {
  display: flex;
  gap: 0.85rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--rule);
}
.proj .links span {
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
  color: var(--ink);
  transition: color 0.15s;
}
.proj:hover .links span { color: var(--accent); }
.proj .links span.muted { color: var(--ink-mid); }
/* Demo spans promoted to a real link by case-study.js (data-demo present) */
.proj .links span[data-demo-url] {
  color: inherit;
  cursor: pointer;
}
.proj:hover .links span[data-demo-url] { color: var(--accent); }
.proj .links svg, .proj .links img {
  width: 11px;
  height: 11px;
  display: inline-block; /* override the reset's display:block */
  flex-shrink: 0;        /* never expand in flex context */
  max-width: 11px;       /* hard cap against the reset max-width:100% */
}
.proj .links img {
  filter: grayscale(100%) brightness(0.3);
  transition: filter 0.15s;
}
:root[data-theme="dark"] .proj .links img { filter: invert(1) brightness(0.75); }
/* on hover, let icon tint match the terracotta text */
.proj:hover .links span img { filter: grayscale(100%) brightness(0.4) sepia(1) hue-rotate(-15deg) saturate(3); }
:root[data-theme="dark"] .proj:hover .links span img { filter: invert(0.5) sepia(1) hue-rotate(-20deg) saturate(4) brightness(1.1); }

.empty-state {
  grid-column: 1 / -1;
  padding: 3rem 1rem;
  text-align: center;
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: 0.85rem;
}

.show-more {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}
.show-more button {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.7rem 1.4rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.05em;
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--paper-card);
  transition: background 0.18s, color 0.18s, border-color 0.18s;
}
.show-more button:hover { background: var(--ink); color: var(--paper); }
.show-more .count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.7rem;
  padding: 0 6px;
  font-size: 0.66rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink-mid);
}
.show-more button:hover .count {
  background: rgba(255,255,255,0.18);
  color: var(--paper);
  border-color: rgba(255,255,255,0.3);
}
.show-more .arrow { transition: transform 0.22s; }
.show-more button[data-state="expanded"] .arrow { transform: rotate(180deg); }
.is-cap-hidden { display: none !important; }

/* ─────── skills · matrix ─────── */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 768px) { .skills-grid { grid-template-columns: repeat(2, 1fr); gap: 3rem; } }
@media (min-width: 1100px) { .skills-grid { grid-template-columns: repeat(4, 1fr); gap: 2rem; } }

.skill-cluster h4 {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mid);
  margin-bottom: 1.25rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--rule);
}
.skill-cluster ul { list-style: none; display: flex; flex-direction: column; gap: 0.85rem; }
.skill-cluster li {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.skill-cluster li .top-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.6rem;
}
.skill-cluster li .name {
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.skill-cluster li .name img {
  width: 13px;
  height: 13px;
  display: inline-block;
  flex-shrink: 0;
  max-width: 13px;
  filter: grayscale(100%) brightness(0.4);
}
:root[data-theme="dark"] .skill-cluster li .name img { filter: invert(1) brightness(1.2); }
.skill-cluster li .pct {
  font-family: var(--mono);
  font-size: 0.66rem;
  color: var(--ink-dim);
  letter-spacing: 0.05em;
}
.skill-cluster li .bar {
  position: relative;
  height: 1px;
  background: var(--rule);
}
.skill-cluster li .bar::after {
  content: "";
  position: absolute;
  inset: -1px auto -1px 0;
  width: var(--w, 0%);
  height: 3px;
  background: var(--accent);
  transition: width 0.8s cubic-bezier(.2, .8, .2, 1);
}

/* ─────── shelf · drawing-stamp cards ─────── */
.shelf {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border: 1px solid var(--rule);
  background: var(--paper-card);
}
@media (min-width: 700px) { .shelf { grid-template-columns: repeat(2, 1fr); } }

.cert {
  display: grid;
  grid-template-columns: 50px 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--rule);
  transition: background 0.18s, padding-left 0.2s;
  text-decoration: none;
  color: inherit;
}
@media (min-width: 700px) {
  .cert:nth-child(odd) { border-right: 1px solid var(--rule); }
  .cert:nth-last-child(2):nth-child(odd),
  .cert:last-child { border-bottom: 0; }
}
.cert:hover {
  padding-left: 1.85rem;
  background: var(--paper);
}
.cert .badge {
  width: 50px;
  height: 50px;
  border: 1px solid var(--rule);
  background: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.cert .badge img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 4px;
  filter: grayscale(60%) contrast(0.95);
  transition: filter 0.4s;
}
.cert:hover .badge img { filter: none; }
.cert .badge .fallback { font-size: 1.3rem; color: var(--ink-mid); }

.cert .body { min-width: 0; }
.cert .meta {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mid);
  margin-bottom: 0.2rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
.cert .meta::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule-soft);
}
.cert h4 {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 0.2rem;
  letter-spacing: -0.005em;
}
.cert .issuer {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--ink-mid);
}
.cert .verify {
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
  margin-top: 0.6rem;
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
}
.cert .verify svg { width: 10px; height: 10px; }
.cert .verify::after {
  content: "";
  height: 1px;
  width: 0;
  background: var(--accent);
  transition: width 0.22s;
}
.cert:hover .verify::after { width: 18px; }

/* ─────── arcade CTA ─────── */
.arcade-cta {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  align-items: center;
  gap: 1.25rem;
  padding: 1.6rem;
  border: 1px solid var(--rule);
  background: var(--paper-card);
  text-decoration: none;
  color: var(--ink);
  position: relative;
  transition: border-color 0.22s, transform 0.22s, box-shadow 0.22s;
  overflow: hidden;
}
.arcade-cta::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(.2, .8, .2, 1);
}
.arcade-cta:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -22px rgba(194, 80, 43, 0.3);
}
.arcade-cta:hover::before { transform: scaleX(1); }

.arcade-cta-ic {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
  flex-shrink: 0;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.arcade-cta:hover .arcade-cta-ic {
  background: var(--accent);
  color: var(--paper);
  border-color: var(--accent);
}
.arcade-cta-ic svg { width: 28px; height: 28px; }

.arcade-cta-body { min-width: 0; }
.arcade-cta-title {
  display: block;
  font-family: var(--serif);
  font-size: 1.4rem;
  letter-spacing: -0.015em;
  color: var(--ink);
  line-height: 1.15;
  margin-bottom: 0.3rem;
}
.arcade-cta-sub {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-mid);
  line-height: 1.5;
}
.arcade-cta-arrow {
  font-family: var(--serif);
  font-size: 1.5rem;
  color: var(--ink-mid);
  transition: transform 0.22s, color 0.22s;
}
.arcade-cta:hover .arcade-cta-arrow {
  transform: translateX(5px);
  color: var(--accent);
}
@media (max-width: 600px) {
  .arcade-cta { padding: 1.1rem; gap: 0.9rem; grid-template-columns: 48px 1fr auto; }
  .arcade-cta-ic { width: 48px; height: 48px; }
  .arcade-cta-ic svg { width: 22px; height: 22px; }
  .arcade-cta-title { font-size: 1.1rem; }
  .arcade-cta-sub { font-size: 0.66rem; }
}

/* ─────── writing ─────── */
.write-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.write-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 1.4rem 1.5rem;
  border: 1px solid var(--rule);
  background: var(--paper-card);
  position: relative;
  overflow: hidden;
  transition: border-color 0.22s, transform 0.22s, box-shadow 0.22s;
}
.write-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(.2, .8, .2, 1);
}
.write-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -22px rgba(194, 80, 43, 0.3);
}
.write-card:hover::before { transform: scaleX(1); }

.write-card-ic {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
  flex-shrink: 0;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.write-card:hover .write-card-ic {
  background: var(--accent);
  color: var(--paper);
  border-color: var(--accent);
}
.write-card-ic svg { width: 22px; height: 22px; }

.write-card-title {
  font-family: var(--serif);
  font-size: 1.3rem;
  letter-spacing: -0.015em;
  color: var(--ink);
  line-height: 1.15;
  margin: 0;
}
.write-card-sub {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--ink-mid);
  line-height: 1.55;
  margin: 0;
  flex: 1;
}
.write-card-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.3rem;
  padding: 0.55rem 1rem;
  border: 1px solid var(--rule);
  background: var(--paper);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.write-card-btn:hover {
  background: var(--accent);
  color: var(--paper);
  border-color: var(--accent);
}
.write-card-arrow {
  font-family: var(--serif);
  font-size: 1.1rem;
  transition: transform 0.22s;
}
.write-card-btn:hover .write-card-arrow { transform: translateX(4px); }

@media (max-width: 760px) {
  .write-grid { grid-template-columns: 1fr; }
  .write-card { padding: 1.5rem; }
  .write-card-title { font-size: 1.3rem; }
}

/* ─────── contact ─────── */
.contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
@media (min-width: 900px) {
  .contact { grid-template-columns: 1fr 1fr; gap: 4rem; }
}

.contact-intro h3 {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  letter-spacing: -0.015em;
  margin-bottom: 1rem;
  line-height: 1.1;
}
.contact-intro h3 em { font-style: italic; color: var(--accent); }
.contact-intro .lead { margin-bottom: 1.5rem; }

.contact-channels { display: flex; flex-direction: column; }
.contact-channels a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--rule);
  transition: padding-left 0.2s;
}
.contact-channels a:hover { padding-left: 0.5rem; }
.contact-channels .lbl {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mid);
  display: block;
  margin-bottom: 0.15rem;
}
.contact-channels .val {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--ink);
  display: block;
}
.contact-channels .arrow {
  font-family: var(--mono);
  color: var(--ink-faint);
  transition: transform 0.18s, color 0.18s;
}
.contact-channels a:hover .arrow { transform: translateX(4px); color: var(--accent); }

.contact-form { display: flex; flex-direction: column; gap: 0.85rem; }
.contact-form label {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mid);
  margin-bottom: 0.35rem;
  display: block;
}
.contact-form textarea { min-height: 120px; resize: vertical; }
.contact-form .submit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}
.contact-form .note {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--ink-dim);
  flex: 1;
  transition: color 0.18s;
}
.contact-form .note[data-state="success"] { color: var(--accent); font-weight: 500; }
.contact-form .note[data-state="error"]   { color: var(--accent); font-weight: 500; }
.contact-form .note[data-state="info"]    { color: var(--ink-mid); }
#cfSubmit:disabled { opacity: 0.7; cursor: progress; }

/* ─────── footer ─────── */
.foot {
  padding: 2.5rem 0 2rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--ink-dim);
}
.foot-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: end;
}
@media (min-width: 600px) {
  .foot-grid {
    grid-template-columns: 1fr auto;
    gap: 1.5rem;
  }
}
.foot-stamp {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.foot-stamp .small-name {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.foot-socials {
  display: flex;
  gap: 0.45rem;
  align-items: center;
}
.foot-socials a {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--ink-mid);
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.foot-socials a:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-bg);
}
.foot-socials svg { width: 14px; height: 14px; }

/* ─────── back to top ─────── */
.to-top {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  width: 50px;
  height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  z-index: 50;
  opacity: 0;
  transform: translateY(12px) scale(0.9);
  pointer-events: none;
  cursor: pointer;
  box-shadow:
    0 0 0 6px rgba(194, 80, 43, 0.12),
    0 12px 28px -10px rgba(194, 80, 43, 0.55);
  transition: opacity 0.28s var(--ease-out),
              transform 0.28s var(--ease-out),
              background 0.22s, box-shadow 0.28s;
  /* gentle floating animation */
  animation: toTopFloat 3.2s ease-in-out infinite;
}
.to-top.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.to-top:hover {
  background: var(--ink);
  transform: translateY(-4px) scale(1.04);
  box-shadow:
    0 0 0 6px rgba(31, 50, 87, 0.14),
    0 16px 32px -10px rgba(31, 50, 87, 0.55);
  animation-play-state: paused;
}
.to-top:active {
  transform: translateY(-1px) scale(0.98);
}
.to-top svg {
  width: 22px;
  height: 22px;
  display: block;
}
@keyframes toTopFloat {
  0%, 100% { translate: 0 0; }
  50%      { translate: 0 -4px; }
}
@media (prefers-reduced-motion: reduce) {
  .to-top { animation: none; }
}

/* ─────── CV modal ─────── */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(31, 50, 87, 0.6);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 90;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.modal.is-open { display: flex; }
.modal-card {
  width: 100%;
  max-width: 900px;
  height: 90svh; /* svh avoids iOS toolbar height bug */
  max-height: 90svh;
  background: var(--paper-card);
  border: 1px solid var(--rule);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}
@media (max-width: 600px) {
  .modal { padding: 0.75rem; }
  .modal-card { height: 96svh; max-height: 96svh; }
  .modal-bar { padding: 0.65rem 0.85rem; }
  .modal-bar .actions .btn { padding: 0.28rem 0.55rem; font-size: 0.62rem; }
}
.modal-bar {
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-mid);
  flex-wrap: wrap;
  gap: 0.5rem;
}
.modal-bar .actions { display: flex; gap: 0.4rem; }
.modal-bar .actions .btn { padding: 0.35rem 0.75rem; font-size: 0.66rem; }
.modal-card iframe { flex: 1; width: 100%; border: 0; background: var(--paper-deep); }

/* ─────── reveal ─────── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(.2, .8, .2, 1);
}
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* mobile polish */
@media (max-width: 720px) {
  body { background-size: 24px 24px; }
  .hero { padding: 4rem 0 3rem; }
  .hero h1 { font-size: clamp(2rem, 9vw, 3rem); }

  /* portrait: constrain size, centre, and add bottom space for the stamp */
  .hero-portrait { max-width: 240px; margin-bottom: 1.5rem; }
  .hero-portrait-stamp { font-size: 0.6rem; letter-spacing: 0.12em; }

  .hero-cta { gap: 0.5rem; flex-wrap: wrap; }
  .hero-cta .btn { flex: 1 1 calc(50% - 0.5rem); justify-content: center; }
  .hero-cta .btn--accent { flex: 1 1 100%; }
  .btn { padding: 0.65rem 1rem; font-size: 0.7rem; }
  .hero-dims { gap: 1rem 1.5rem; margin-top: 2rem; }
  .hero-dims .val { font-size: 1rem; }

  section[data-section] { padding: 3.5rem 0; }
  .section-head { margin-bottom: 2rem; }
  .section-head h2 { font-size: clamp(1.6rem, 6.5vw, 2.2rem); }

  .gh-stat { padding: 1.2rem 1rem; }
  .gh-stat .num { font-size: 1.8rem; }

  /* work / cert filter rows — keep filters on one scrollable row */
  .work-controls,
  .cert-controls {
    gap: 0.4rem;
  }
  .work-filter,
  .cert-filter {
    padding: 0.38rem 0.8rem;
    font-size: 0.66rem;
  }
  .work-search { flex: 1 1 100%; margin-left: 0; }

  .proj { padding: 1.4rem 1.2rem; }
  .proj h3 { font-size: 1.25rem; }
  .proj .tech { gap: 0.35rem; }
  .proj .links { font-size: 0.78rem; gap: 0.7rem; }

  /* cert list — single column polish */
  .cert { padding: 1.1rem 1rem; }
  .cert h4 { font-size: 0.95rem; }

  /* skills — tighter rhythm, bars stay readable */
  .skills-grid { gap: 1.75rem; }
  .skill-cluster ul { gap: 0.7rem; }
  .skill-cluster li .name { font-size: 0.88rem; }

  /* contact form — full width on small screens */
  .contact-form .submit-row { flex-direction: column; align-items: stretch; gap: 0.85rem; }
  .contact-form .submit-row .btn { width: 100%; justify-content: center; }
  .contact-form .note { text-align: center; font-size: 0.66rem; }

  /* footer */
  .foot { padding: 2rem 0 1.5rem; }
  .foot-grid { gap: 1.25rem; }

  /* back-to-top — smaller on phones */
  .to-top { width: 46px; height: 46px; bottom: 1.1rem; right: 1.1rem; }
  .to-top svg { width: 20px; height: 20px; }

  /* arcade CTA */
  .arcade-cta { padding: 1.4rem 1.2rem; gap: 0.85rem; }
  .arcade-cta-title { font-size: 1.05rem; }
  .arcade-cta-sub { font-size: 0.7rem; }
}

/* very narrow phones (≤380px) */
@media (max-width: 380px) {
  .hero h1 { font-size: clamp(1.7rem, 8.5vw, 2.4rem); }
  .hero-cta .btn { flex: 1 1 100%; }
  .nav-inner { padding: 0.65rem 1rem; }
  .brand { font-size: 1.25rem; }
  .icon-btn { width: 32px; height: 32px; }

  /* dims — smaller text on tiny phones */
  .hero-dims .val { font-size: 0.9rem; }
  .hero-dims { gap: 0.75rem 1.25rem; }

}

/* ── mid-phone (480–719px) — cert grid single col ── */
@media (max-width: 480px) {
  /* force single column shelf on small phones */
  .shelf { grid-template-columns: 1fr !important; }
  .cert:nth-child(odd) { border-right: 0 !important; }
  .cert:last-child, .cert:nth-last-child(2):nth-child(odd) { border-bottom: 1px solid var(--rule) !important; }
  .cert:last-child { border-bottom: 0 !important; }

  /* tools chips — tighter */
  .tools-row { gap: 0.3rem; }
  .tool-chip { padding: 0.45rem 0.75rem; font-size: 0.76rem; }
  .tool-chip img { width: 14px; height: 14px; }

  /* gh stats — tighter cells */
  .gh-stat { padding: 1rem 0.75rem; }
  .gh-stat .num { font-size: 1.6rem; }

  /* work-search always full-width */
  .work-search { flex: 1 1 100%; margin-left: 0; min-width: 0; }

  /* section head — tighter */
  .section-head { margin-bottom: 1.75rem; }
}

/* ── landscape phones ── */
@media (max-width: 720px) and (orientation: landscape) {
  .hero { padding: 3rem 0 2.5rem; }
  .hero-grid { gap: 1.5rem; }
  .hero-portrait { max-width: 180px; }
}


/* ════════════════════════════════════════════════════════════════════
   V14 · interactivity layer (ported from V8) on top of V5 base
   - mouse-tracked aurora orb
   - smooth-follow custom cursor
   - 3D parallax hero headline (3 stacked layers)
   - 3D portrait card tilt
   - project card tilt + radial mouse-shine
   - sliding-fill buttons (.btn::before)
   - infinite tools marquee
   - certificates: show 4 then "Show all" (cap)
   ──────────────────────────────────────────────────────────────────── */

:root { --ease-out: cubic-bezier(0.16, 1, 0.3, 1); }

/* ────── aurora orb (mouse-tracked) ────── */
.aurora {
  position: fixed;
  top: 0; left: 0;
  width: 580px;
  height: 580px;
  margin: -290px 0 0 -290px;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(
    circle,
    var(--accent-glow) 0%,
    rgba(194, 80, 43, 0.05) 25%,
    transparent 60%
  );
  filter: blur(60px);
  opacity: 0.65;
  transform: translate3d(50vw, 35vh, 0);
  transition: transform 0.8s var(--ease-out);
  will-change: transform;
  mix-blend-mode: multiply;
}
:root[data-theme="dark"] .aurora { mix-blend-mode: screen; opacity: 0.85; }

/* ────── stage z-index — keep content above orb (don't reset .nav or .modal positions) ────── */
main, header.hero, section, footer.wrap, .progress { position: relative; z-index: 1; }
.to-top { z-index: 50; } /* keep its fixed positioning, just bump above content */
.nav { z-index: 50; }   /* keep nav sticky above the orb */
.modal { z-index: 100; }  /* keep modal fixed above everything */

/* ────── custom cursor (desktop only) ────── */
.cursor-dot, .cursor-ring {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  border-radius: 999px;
  will-change: transform, width, height, opacity;
  display: none;
}
@media (hover: hover) and (pointer: fine) {
  .cursor-dot, .cursor-ring { display: block; }
}
.cursor-dot {
  width: 6px; height: 6px;
  background: var(--ink);
  margin: -3px 0 0 -3px;
  transition: opacity 0.22s, background 0.22s, transform 0.05s linear;
}
.cursor-ring {
  width: 32px; height: 32px;
  margin: -16px 0 0 -16px;
  border: 1px solid var(--ink);
  background: transparent;
  transition: width 0.32s var(--ease-out), height 0.32s var(--ease-out),
              margin 0.32s var(--ease-out), border-color 0.22s, background 0.22s,
              opacity 0.22s, transform 0.04s linear;
}
.cursor-ring.is-hovering {
  width: 56px; height: 56px;
  margin: -28px 0 0 -28px;
  border-color: var(--accent);
  background: var(--accent-bg);
}
.cursor-ring.is-text {
  width: 4px; height: 24px;
  margin: -12px 0 0 -2px;
  border-radius: 2px;
  background: var(--accent);
  border-color: transparent;
}
.cursor-dot.is-hidden, .cursor-ring.is-hidden { opacity: 0; }



/* ────── 3D hero headline parallax ────── */
.hero h1 {
  perspective: 1000px;
  transform-style: preserve-3d;
}
.hero h1 .layer {
  display: block;
  transition: transform 0.18s var(--ease-out);
  will-change: transform;
}
.hero h1 .layer-2 { color: var(--ink-soft); }

/* ────── 3D portrait tilt ────── */
.hero-grid > .reveal:nth-child(2) {
  perspective: 1000px;
  transform-style: preserve-3d;
  /* ensure this column stretches to fill the grid cell properly */
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-portrait {
  transform-style: preserve-3d;
  transition: transform 0.6s var(--ease-out), box-shadow 0.6s var(--ease-out);
  will-change: transform;
}

/* ────── project card tilt + shine ────── */
.work-grid { perspective: 1500px; }
.proj {
  transform-style: preserve-3d;
  transition: border-color 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), transform 0.32s var(--ease-out);
  will-change: transform;
}
.proj-shine {
  position: absolute;
  inset: -1px;
  background: radial-gradient(
    600px circle at var(--mx, 50%) var(--my, 50%),
    var(--accent-bg),
    transparent 40%
  );
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
  z-index: 0;
}
.proj > *:not(.proj-shine) { position: relative; z-index: 1; }
.proj:hover .proj-shine { opacity: 1; }
.proj:hover {
  box-shadow: 0 22px 44px -24px var(--accent-glow);
}

/* ────── tools marquee ────── */
.tools-marquee {
  margin-top: 3rem;
  padding: 1.1rem 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
  position: relative;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.tools-marquee-track {
  display: flex;
  gap: 3.2rem;
  animation: v14-marquee 38s linear infinite;
  width: max-content;
}
.tools-marquee:hover .tools-marquee-track { animation-play-state: paused; }
.tools-marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--ink-mid);
  white-space: nowrap;
  transition: color 0.2s;
}
.tools-marquee-item img {
  width: 18px; height: 18px;
  display: inline-block;
  flex-shrink: 0;
  max-width: 18px;
  filter: grayscale(100%) brightness(0.4);
  transition: filter 0.2s;
}
:root[data-theme="dark"] .tools-marquee-item img { filter: invert(1) brightness(1.2); }
:root[data-theme="dark"] .tools-marquee-item:hover img { filter: none; }
.tools-marquee-item:hover { color: var(--accent); }
.tools-marquee-item:hover img { filter: none; }
@keyframes v14-marquee {
  0%   { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-10%, 0, 0); }
}

/* ────── certificates: cap to 4, then "Show all" button ────── */
.cert.is-cap-hidden { display: none !important; }
.cert.is-filter-hidden { display: none !important; }

/* certificate filter row (mirrors work-controls) */
.cert-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.cert-filter {
  padding: 0.42rem 0.95rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mid);
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.cert-filter:hover { color: var(--ink); border-color: var(--ink); }
.cert-filter.is-active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.cert-show-more {
  display: flex;
  justify-content: center;
  margin-top: 2.5rem;
}
.cert-show-more button {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.4rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--paper-card);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: color 0.32s var(--ease-out), border-color 0.32s var(--ease-out);
}
.cert-show-more button:hover {
  background: var(--ink);
  color: var(--paper);
}
.cert-show-more button > * { position: relative; z-index: 1; }
.cert-show-more .count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.6rem;
  padding: 0 6px;
  font-family: var(--mono);
  font-size: 0.66rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink-mid);
}
.cert-show-more button:hover .count {
  background: rgba(255,255,255,0.18);
  color: var(--paper);
  border-color: rgba(255,255,255,0.3);
}
.cert-show-more .arrow { transition: transform 0.32s; display: inline-flex; }
.cert-show-more button[data-state="expanded"] .arrow { transform: rotate(180deg); }

/* ────── hide native cursor on interactive elements when custom cursor active ────── */
@media (hover: hover) and (pointer: fine) {
  body.has-custom-cursor a, body.has-custom-cursor button,
  body.has-custom-cursor input, body.has-custom-cursor textarea,
  body.has-custom-cursor .interactive { cursor: none; }
}

/* mobile reset — disable heavy effects */
@media (max-width: 720px) {
  .aurora { display: none; }
  .tools-marquee { margin-top: 2rem; }
  .tools-marquee-track { animation-duration: 28s; }
}

@media (prefers-reduced-motion: reduce) {
  .aurora { display: none; }
  .tools-marquee-track { animation: none; }
  .hero h1 .layer, .hero-portrait, .proj { transform: none !important; }
}


/* ════════════════════════════════════════════════════════════════════
   CASE STUDY MODAL — drafting paper aesthetic
   Project cards (.proj) become clickable and open a themed modal that
   renders the project's GitHub README inline.
   ──────────────────────────────────────────────────────────────────── */

/* card affordance — show the cards are clickable */
.proj.cs-clickable { cursor: pointer; }
.proj.cs-clickable::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  box-shadow: inset 0 0 0 0 var(--accent);
  transition: box-shadow 0.18s;
}
.proj.cs-clickable:hover::after {
  box-shadow: inset 0 0 0 1px var(--accent);
}

/* hover hint — small badge on desktop only */
@media (hover: hover) and (pointer: fine) {
  .proj.cs-has-readme {
    position: relative;
  }
  .proj.cs-has-readme::before {
    content: 'Click · read case study';
    position: absolute;
    /* reset inset:0 inherited from the generic .proj::before rule
       so this badge stays in the top-right corner instead of stretching
       into a full card overlay that hides the content on hover */
    inset: auto;
    top: 0.75rem;
    right: 0.75rem;
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--paper-warm);
    border: 1px solid var(--rule);
    padding: 0.25rem 0.55rem;
    border-radius: 2px;
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity 0.18s, transform 0.18s;
    pointer-events: none;
    z-index: 3;
  }
  .proj.cs-has-readme:hover::before {
    opacity: 1;
    transform: translateY(0);
  }
}

/* modal shell */
.cs-modal {
  position: fixed;
  inset: 0;
  z-index: 10001;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 1.5rem 1rem;
  overflow-y: auto;
}
.cs-modal.is-open {
  display: flex;
  animation: csFade 0.25s ease-out;
}
@keyframes csFade { from { opacity: 0; } to { opacity: 1; } }

.cs-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(31, 50, 87, 0.35);
  backdrop-filter: blur(8px) saturate(120%);
  -webkit-backdrop-filter: blur(8px) saturate(120%);
}
:root[data-theme="dark"] .cs-backdrop {
  background: rgba(0, 0, 0, 0.6);
}

.cs-panel {
  position: relative;
  z-index: 1;
  width: min(58rem, 100%);
  max-height: calc(100vh - 3rem);
  overflow-y: auto;
  background: var(--paper-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 2.25rem 2.25rem 1.75rem;
  margin: auto;
  box-shadow:
    0 1px 0 var(--rule-soft),
    0 24px 60px -20px rgba(31, 50, 87, 0.3);
  animation: csPop 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes csPop {
  from { transform: translateY(20px) scale(0.96); opacity: 0; }
  to   { transform: translateY(0) scale(1);       opacity: 1; }
}

/* drafting-sheet corner tick marks */
.cs-panel::before,
.cs-panel::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--ink-faint);
  pointer-events: none;
}
.cs-panel::before {
  top: 10px; left: 10px;
  border-right: 0; border-bottom: 0;
}
.cs-panel::after {
  bottom: 10px; right: 10px;
  border-left: 0; border-top: 0;
}

.cs-close {
  position: sticky;
  top: 0;
  float: right;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--rule);
  color: var(--ink);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.18s;
  z-index: 2;
  margin-bottom: -2.25rem;
}
.cs-close:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  transform: rotate(90deg);
}

/* header */
.cs-header { padding-right: 3rem; margin-bottom: 1rem; }

.cs-stamp {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mid);
  padding-bottom: 0.85rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--rule);
}
.cs-stamp-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
  flex-shrink: 0;
}
.cs-stamp-num { color: var(--ink); }
.cs-stamp-grow { flex: 1; }
.cs-stamp-tag { color: var(--accent); }

.cs-title {
  margin: 0 0 0.5rem;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.cs-summary {
  margin: 0;
  color: var(--ink-mid);
  font-size: 0.95rem;
  line-height: 1.6;
}

.cs-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1rem 0 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--rule);
}
.cs-chip {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.7rem;
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  border-radius: 2px;
  color: var(--ink-soft);
}

/* body — markdown rendered content */
.cs-body {
  color: var(--ink);
  line-height: 1.7;
  font-size: 0.96rem;
  font-family: var(--sans);
}
.cs-body h1, .cs-body h2, .cs-body h3,
.cs-body h4, .cs-body h5, .cs-body h6 {
  font-family: var(--serif);
  font-weight: 400;
  margin: 1.6em 0 0.55em;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.cs-body h2.cs-h2 {
  font-size: 1.4rem;
  position: relative;
  padding-bottom: 0.4rem;
}
.cs-body h2.cs-h2::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 2.5rem;
  height: 1px;
  background: var(--accent);
}
.cs-body h3.cs-h3 { font-size: 1.15rem; color: var(--ink-soft); }
.cs-body h4.cs-h4 { font-size: 1.02rem; color: var(--ink-soft); }
.cs-body p { margin: 0 0 1em; }
.cs-body strong { color: var(--ink); font-weight: 600; }
.cs-body em { color: var(--accent); font-style: italic; }
.cs-body code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  padding: 0.1rem 0.4rem;
  border-radius: 2px;
  color: var(--accent);
}
.cs-body pre.cs-code {
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  border-radius: 2px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  margin: 1em 0;
  font-size: 0.84rem;
  line-height: 1.55;
}
.cs-body pre.cs-code code {
  background: none;
  border: 0;
  padding: 0;
  color: var(--ink);
  font-size: inherit;
}
.cs-body blockquote.cs-quote {
  margin: 1.2em 0;
  padding: 0.8rem 1rem;
  border-left: 3px solid var(--accent);
  background: var(--paper-warm);
  border-radius: 0 2px 2px 0;
  color: var(--ink-mid);
  font-style: italic;
}
.cs-body ul.cs-list,
.cs-body ol.cs-list {
  margin: 0.6em 0 1em;
  padding-left: 1.4rem;
}
.cs-body ul.cs-list li,
.cs-body ol.cs-list li { margin: 0.4em 0; }
.cs-body ul.cs-list li::marker { color: var(--accent); }
.cs-body ol.cs-list li::marker { color: var(--accent); }
.cs-body a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-glow);
  transition: border-color 0.18s, color 0.18s;
}
.cs-body a:hover {
  color: var(--accent-soft);
  border-bottom-color: var(--accent);
}
/* All images from raw HTML READMEs stay within bounds (badges, screenshots…) */
.cs-body img {
  max-width: 100%;
  height: auto;
}
.cs-body img.cs-img {
  max-width: 100%;
  height: auto;
  border-radius: 2px;
  border: 1px solid var(--rule);
  margin: 1em 0;
  display: block;
}
.cs-body hr.cs-hr {
  border: 0;
  height: 1px;
  background: var(--rule);
  margin: 2em 0;
}

/* Markdown Tables */
.cs-table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 1.5em 0;
  border-radius: 4px;
  border: 1px solid var(--rule);
}
.cs-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9em;
}
.cs-table th, .cs-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--rule);
}
.cs-table th {
  background: var(--paper-warm);
  font-weight: 600;
  color: var(--ink-soft);
}
.cs-table tr:last-child td {
  border-bottom: 0;
}
.cs-table tr:nth-child(even) td {
  background: rgba(0,0,0,0.015);
}
:root[data-theme="dark"] .cs-table tr:nth-child(even) td {
  background: rgba(255,255,255,0.015);
}

/* YouTube embed */
.cs-yt-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  margin: 1em 0;
  border-radius: 2px;
  overflow: hidden;
  border: 1px solid var(--rule);
  box-shadow: 0 8px 24px -8px rgba(31, 50, 87, 0.25);
}
.cs-yt-wrap iframe {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: 0;
}

/* footer buttons */
.cs-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.6rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
}
.cs-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  padding: 0.6rem 1rem;
  border-radius: 2px;
  background: transparent;
  border: 1px solid var(--ink);
  color: var(--ink);
  letter-spacing: 0.01em;
  transition: all 0.18s;
}
.cs-btn:hover {
  background: var(--ink);
  color: var(--paper);
}
.cs-btn svg { width: 16px; height: 16px; }
.cs-btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.cs-btn-primary:hover {
  background: var(--accent-soft);
  border-color: var(--accent-soft);
  color: #fff;
}

/* loading + empty states */
.cs-loading {
  text-align: center;
  padding: 3rem 1.25rem;
  color: var(--ink-mid);
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
}
.cs-spinner {
  width: 36px; height: 36px;
  margin: 0 auto 1rem;
  border: 2px solid var(--rule);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: csSpin 0.8s linear infinite;
}
@keyframes csSpin { to { transform: rotate(360deg); } }
.cs-empty {
  text-align: center;
  padding: 2.5rem 1.25rem;
  color: var(--ink-mid);
}
.cs-empty p { margin: 0.5rem 0; }
.cs-empty-sub { font-size: 0.85rem; opacity: 0.85; }
.cs-empty code {
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  padding: 0.1rem 0.4rem;
  border-radius: 2px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.85em;
}

.cs-readme-meta {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mid);
  padding: 0.55rem 0.85rem;
  margin-bottom: 1.25rem;
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  border-radius: 2px;
  border-left: 3px solid var(--accent);
}
.cs-readme-meta .cs-branch {
  margin-left: auto;
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 0.15rem 0.6rem;
  border-radius: 2px;
  color: var(--accent);
  font-size: 0.7rem;
}

@media (max-width: 640px) {
  .cs-modal { padding: 0.75rem 0.5rem; }
  .cs-panel { padding: 1.5rem 1.25rem 1.25rem; }
  .cs-header { padding-right: 2.5rem; }
  .cs-title { font-size: 1.5rem; }
  .cs-body { font-size: 0.92rem; }
  .cs-body h2.cs-h2 { font-size: 1.2rem; }
}

/* ════════════════════════════════════════════════════════════════════
   PWA — toast (used for service-worker update notifications)
   ──────────────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%) translateY(120%);
  z-index: 10000;
  padding: 0.75rem 1.25rem;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  border-radius: 2px;
  border: 1px solid var(--ink);
  box-shadow: 0 12px 30px -12px rgba(0, 0, 0, 0.4);
  transition: transform 0.32s cubic-bezier(0.34, 1.56, 0.64, 1),
              opacity 0.22s, visibility 0.22s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  max-width: calc(100vw - 2rem);
  /* Hide completely until .show is added (an empty toast still has
     padding height so translateY(120%) wasn't enough to push it
     fully off-screen — leaving a small navy stub at the bottom). */
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.toast button {
  margin-left: 0.5rem;
  background: var(--accent);
  color: #fff;
  border: 0;
  padding: 0.3rem 0.8rem;
  border-radius: 2px;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  letter-spacing: inherit;
}