/* =========================================================
   Wichan Kim — pixel/arcade-inspired portfolio theme
   ========================================================= */

:root {
  /* surfaces */
  --bg:        #14172a;
  --bg-elev:   #1a1e35;
  --bg-card:   #232847;
  --bg-card-2: #2c3257;
  --line:      rgba(247, 232, 200, 0.12);
  --line-2:    rgba(247, 232, 200, 0.22);

  /* ink */
  --ink:        #f7e8c8;
  --ink-bright: #fff8e3;
  --ink-muted:  #9a9fbe;
  --ink-dim:    #6b7196;

  /* accents (sampled from Wichan's "Rooms" pixel art) */
  --pink:    #e85a7c;
  --pink-2:  #ff7aa0;
  --mustard: #f0c453;
  --mustard-2:#ffd97a;
  --mint:    #60d4a8;
  --mint-2:  #82edc1;
  --cyan:    #5cd4e6;
  --coral:   #ff8a65;
  --purple:  #a675c9;
  --green:   #9bc763;

  /* typography */
  --ff-pixel:   'Press Start 2P', system-ui, monospace;
  --ff-display: 'Space Grotesk', 'Public Sans', system-ui, sans-serif;
  --ff-body:    'Public Sans', system-ui, -apple-system, Segoe UI, sans-serif;
  --ff-mono:    'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* layout */
  --maxw:    1280px;
  --gutter:  clamp(20px, 4vw, 48px);
  --radius:  0px; /* sharp pixel edges */
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--ff-body);
  font-size: 17px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: 0; color: inherit; }
ul, ol { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4, h5, h6, p { margin: 0; }
::selection { background: var(--mint); color: #0c0e1a; }

/* ---------- background atmosphere ---------- */
.crt-overlay {
  position: fixed; inset: 0; pointer-events: none; z-index: 100;
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 2px,
      rgba(0, 0, 0, 0.08) 3px,
      rgba(0, 0, 0, 0.08) 3px
    );
  mix-blend-mode: multiply;
  opacity: 0.55;
}
.grid-bg {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    radial-gradient(ellipse 80% 60% at 20% 0%, rgba(167, 117, 201, 0.15), transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 30%, rgba(96, 212, 168, 0.10), transparent 60%),
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(232, 90, 124, 0.10), transparent 60%);
}
body::before {
  content: '';
  position: fixed; inset: 0; pointer-events: none; z-index: 1;
  background-image:
    linear-gradient(rgba(247, 232, 200, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(247, 232, 200, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 100% 90% at 50% 30%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 100% 90% at 50% 30%, black 30%, transparent 80%);
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: linear-gradient(to bottom, rgba(20, 23, 42, 0.96), rgba(20, 23, 42, 0.78));
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px var(--gutter);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--ff-pixel);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink);
}
.brand-mark {
  display: inline-grid;
  grid-template-columns: 6px 6px;
  grid-template-rows: 6px 6px;
  gap: 2px;
}
.brand-mark .px { display: block; width: 6px; height: 6px; }
.brand-mark .px-1 { background: var(--pink); }
.brand-mark .px-2 { background: var(--mustard); }
.brand-mark .px-3 { background: var(--mint); }
.brand-mark .px-4 { background: var(--cyan); }
.brand:hover .brand-mark { animation: shuffle 0.6s steps(4) infinite; }
@keyframes shuffle {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.nav {
  display: flex;
  gap: 6px;
  justify-self: center;
}
.nav-link {
  position: relative;
  padding: 10px 14px;
  font-family: var(--ff-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  transition: color 0.18s ease;
}
.nav-link::before {
  content: '[ ';
  opacity: 0;
  transition: opacity 0.18s ease;
}
.nav-link::after {
  content: ' ]';
  opacity: 0;
  transition: opacity 0.18s ease;
}
.nav-link:hover,
.nav-link.is-active {
  color: var(--ink-bright);
}
.nav-link:hover::before,
.nav-link:hover::after,
.nav-link.is-active::before,
.nav-link.is-active::after {
  opacity: 1;
}
.nav-link.is-active {
  color: var(--mint);
}

.nav-toggle { display: none; }

/* ---------- containers / sections ---------- */
.site-main { position: relative; z-index: 2; }
.section { padding: clamp(64px, 10vw, 140px) 0; position: relative; }
.section-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
  position: relative;
}
.section-head { margin-bottom: clamp(32px, 5vw, 56px); }
.section-head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.kicker {
  font-family: var(--ff-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--mint);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-title {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  max-width: 18ch;
}

/* ---------- buttons ---------- */
.btn {
  --btn-bg: var(--ink);
  --btn-fg: #0c0e1a;
  --btn-shadow: var(--mint);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  font-family: var(--ff-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: var(--btn-bg);
  color: var(--btn-fg);
  position: relative;
  border: 2px solid var(--ink);
  box-shadow: 6px 6px 0 var(--btn-shadow);
  transition: transform 0.16s ease, box-shadow 0.16s ease;
  white-space: nowrap;
}
.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--btn-shadow);
}
.btn:active {
  transform: translate(4px, 4px);
  box-shadow: 2px 2px 0 var(--btn-shadow);
}
.btn-primary {
  --btn-bg: var(--mint);
  --btn-fg: #0c0e1a;
  --btn-shadow: var(--pink);
}
.btn-ghost {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  --btn-shadow: var(--mustard);
}
.btn-glyph {
  font-size: 11px;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ff-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--mustard);
  text-transform: uppercase;
  border-bottom: 1px solid currentColor;
  padding-bottom: 4px;
  transition: gap 0.2s ease, color 0.2s ease;
}
.link-arrow:hover { gap: 14px; color: var(--mustard-2); }

/* ---------- hero ---------- */
.hero {
  padding: clamp(40px, 8vw, 100px) 0 clamp(40px, 8vw, 80px);
  position: relative;
  overflow: hidden;
}
.hero-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
}
.hero-eyebrow {
  font-family: var(--ff-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mint);
  margin-bottom: 24px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.blink {
  display: inline-block;
  animation: blink 1s steps(2) infinite;
  color: var(--mint);
}
@keyframes blink { 50% { opacity: 0; } }

.hero-title {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(56px, 11vw, 156px);
  line-height: 0.92;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}
.hero-line {
  display: block;
  background: linear-gradient(180deg, var(--ink-bright), var(--ink));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 6px 6px 0 rgba(0, 0, 0, 0.4);
}
.hero-line.accent {
  background: linear-gradient(180deg, var(--mustard-2), var(--mustard));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  position: relative;
}
.hero-line.accent::after {
  content: '';
  display: inline-block;
  width: 0.18em; height: 0.18em;
  background: var(--pink);
  margin-left: 0.08em;
  vertical-align: 0.05em;
  animation: blink 0.9s steps(2) infinite;
}
.hero-sub {
  font-size: clamp(17px, 1.5vw, 21px);
  color: var(--ink-muted);
  max-width: 38ch;
  margin-bottom: 32px;
  line-height: 1.55;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  font-family: var(--ff-mono);
  font-size: 13px;
  color: var(--ink-muted);
}
.hero-tags li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.tag-dot {
  width: 8px; height: 8px;
  display: inline-block;
}
.tag-pink    { background: var(--pink); box-shadow: 0 0 12px rgba(232, 90, 124, 0.6); }
.tag-mustard { background: var(--mustard); box-shadow: 0 0 12px rgba(240, 196, 83, 0.6); }
.tag-mint    { background: var(--mint); box-shadow: 0 0 12px rgba(96, 212, 168, 0.6); }
.tag-cyan    { background: var(--cyan); box-shadow: 0 0 12px rgba(92, 212, 230, 0.6); }

.hero-art { position: relative; }
.hero-frame {
  position: relative;
  background: var(--bg-elev);
  padding: 24px;
  border: 2px solid var(--line-2);
}
.hero-frame img {
  width: 100%;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
}
.frame-corners .c {
  position: absolute;
  width: 14px; height: 14px;
  border: 3px solid var(--mustard);
}
.c-tl { top: -2px; left: -2px; border-right: 0; border-bottom: 0; }
.c-tr { top: -2px; right: -2px; border-left: 0; border-bottom: 0; }
.c-bl { bottom: -2px; left: -2px; border-right: 0; border-top: 0; }
.c-br { bottom: -2px; right: -2px; border-left: 0; border-top: 0; }
.hero-caption {
  margin-top: 14px;
  font-family: var(--ff-mono);
  font-size: 12px;
  color: var(--ink-muted);
  letter-spacing: 0.05em;
  text-align: right;
}

.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  font-family: var(--ff-mono);
  font-size: 11px;
  color: var(--ink-dim);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.hero-scroll .arrow {
  animation: bounce 1.6s ease-in-out infinite;
  color: var(--mint);
}
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(6px); }
}

/* ---------- intro / about cards on home ---------- */
.section-intro {
  border-top: 1px solid var(--line);
}
.intro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-bottom: 40px;
}
.intro-card {
  --card-color: var(--mint);
  background: var(--bg-card);
  padding: 28px 24px 32px;
  border: 2px solid var(--line);
  position: relative;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.intro-card::before {
  content: '';
  position: absolute;
  top: -2px; left: -2px;
  width: 30px; height: 6px;
  background: var(--card-color);
}
.intro-card::after {
  content: '';
  position: absolute;
  top: -2px; left: -2px;
  width: 6px; height: 30px;
  background: var(--card-color);
}
.intro-card:hover {
  transform: translate(-3px, -3px);
  border-color: var(--card-color);
}
.intro-card h3 {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 20px;
  margin-bottom: 8px;
  color: var(--ink-bright);
}
.intro-card p {
  font-size: 15px;
  color: var(--ink-muted);
  line-height: 1.55;
}
.intro-card strong { color: var(--ink-bright); font-weight: 600; }

.card-pink    { --card-color: var(--pink); }
.card-mustard { --card-color: var(--mustard); }
.card-mint    { --card-color: var(--mint); }
.card-purple  { --card-color: var(--purple); }
.card-cyan    { --card-color: var(--cyan); }

/* ---------- featured cards ---------- */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.feat-card {
  --feat-accent: var(--mint);
  display: grid;
  grid-template-rows: auto auto;
  background: var(--bg-card);
  border: 2px solid var(--line);
  position: relative;
  transition: transform 0.2s ease, border-color 0.2s ease;
  overflow: hidden;
}
.feat-card.cat-personal { --feat-accent: var(--pink); }
.feat-card.cat-work     { --feat-accent: var(--mustard); }
.feat-card.cat-school   { --feat-accent: var(--mint); }
.feat-card:hover {
  transform: translate(-4px, -4px);
  border-color: var(--feat-accent);
  box-shadow: 8px 8px 0 var(--feat-accent);
}
.feat-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-elev);
  position: relative;
  border-bottom: 2px solid var(--line);
}
.feat-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.feat-card:hover .feat-media img { transform: scale(1.02); }
.feat-meta {
  padding: 24px 24px 28px;
}
.feat-cat {
  display: inline-block;
  font-family: var(--ff-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--feat-accent);
  margin-bottom: 12px;
}
.feat-cat::before { content: '◆ '; font-size: 9px; vertical-align: 1px; }
.feat-title {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(22px, 2vw, 28px);
  line-height: 1.1;
  margin-bottom: 8px;
  color: var(--ink-bright);
}
.feat-desc {
  font-size: 15px;
  color: var(--ink-muted);
  line-height: 1.5;
}
.feat-arrow {
  position: absolute;
  top: 16px; right: 16px;
  width: 36px; height: 36px;
  display: grid; place-items: center;
  background: var(--bg-elev);
  color: var(--feat-accent);
  font-size: 16px;
  font-weight: 700;
  opacity: 0;
  transform: translate(-4px, 4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  border: 2px solid var(--feat-accent);
}
.feat-card:hover .feat-arrow {
  opacity: 1;
  transform: translate(0, 0);
}

/* ---------- CTA section ---------- */
.section-cta {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, rgba(232, 90, 124, 0.04));
}
.cta-inner { text-align: center; }
.cta-title {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(40px, 7vw, 88px);
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 8px 0 36px;
}
.cta-title .accent {
  color: var(--mustard);
}
.cta-actions {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

/* ---------- generic page ---------- */
.page-header {
  padding: clamp(60px, 10vw, 120px) 0 clamp(20px, 4vw, 40px);
  border-bottom: 1px solid var(--line);
}
.page-title {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(48px, 8vw, 110px);
  line-height: 0.95;
  letter-spacing: -0.03em;
}
.page-subtitle {
  margin-top: 18px;
  font-size: clamp(18px, 1.6vw, 22px);
  color: var(--ink-muted);
  max-width: 60ch;
}
.page-body {
  padding-top: clamp(40px, 6vw, 80px);
  padding-bottom: clamp(60px, 10vw, 120px);
}

/* prose styling */
.page-body h2 {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 36px);
  margin: 64px 0 16px;
  letter-spacing: -0.02em;
  color: var(--ink-bright);
}
.page-body h2:first-child { margin-top: 0; }
.page-body h3 {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 20px;
  margin: 32px 0 12px;
  color: var(--ink-bright);
}
.page-body p {
  margin: 0 0 18px;
  color: var(--ink-muted);
  font-size: 17px;
  line-height: 1.7;
  max-width: 70ch;
}
.page-body p strong { color: var(--ink-bright); font-weight: 600; }
.page-body a {
  color: var(--mint);
  border-bottom: 1px solid currentColor;
  transition: color 0.18s ease;
}
.page-body a:hover { color: var(--mint-2); }
.page-body ul {
  margin: 0 0 24px 0;
  padding: 0;
  display: grid;
  gap: 8px;
  max-width: 70ch;
}
.page-body li {
  position: relative;
  padding-left: 22px;
  color: var(--ink-muted);
}
.page-body li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.6em;
  width: 8px; height: 8px;
  background: var(--mustard);
}

/* ---------- about page custom blocks ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: clamp(32px, 5vw, 64px);
  margin-bottom: clamp(48px, 7vw, 80px);
  align-items: start;
}
.about-portrait {
  position: relative;
  background: var(--bg-elev);
  border: 2px solid var(--line-2);
  padding: 16px;
}
.about-portrait img {
  width: 100%;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
}
.about-stats {
  display: grid;
  gap: 12px;
}
.stat-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
  align-items: baseline;
}
.stat-label {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mint);
}
.stat-value {
  font-size: 16px;
  color: var(--ink);
}

.about-blocks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  margin-bottom: 56px;
}
.about-block {
  --card-color: var(--mint);
  background: var(--bg-card);
  border: 2px solid var(--line);
  padding: 28px 26px 32px;
  position: relative;
}
.about-block::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: var(--card-color);
}
.about-block h3 {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 22px;
  margin-bottom: 12px;
  color: var(--ink-bright);
}
.about-block p { color: var(--ink-muted); font-size: 15px; line-height: 1.6; margin: 0 0 8px; }

.skill-row {
  display: grid;
  gap: 14px;
}
.skill {
  display: grid;
  grid-template-columns: 160px 1fr 60px;
  align-items: center;
  gap: 16px;
}
.skill-name {
  font-family: var(--ff-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.skill-bar {
  height: 12px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.skill-fill {
  position: absolute;
  inset: 0 auto 0 0;
  background: repeating-linear-gradient(
    90deg,
    var(--mint) 0,
    var(--mint) 6px,
    transparent 6px,
    transparent 8px
  );
}
.skill-pct {
  font-family: var(--ff-mono);
  font-size: 11px;
  color: var(--mint);
  letter-spacing: 0.1em;
  text-align: right;
}

/* ---------- portfolio listing ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(28px, 4vw, 48px) 0 clamp(28px, 4vw, 48px);
  padding-bottom: 20px;
  border-bottom: 1px dashed var(--line);
}
.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-family: var(--ff-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  background: var(--bg-elev);
  border: 2px solid var(--line);
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}
.filter-chip:hover { color: var(--ink-bright); border-color: var(--line-2); }
.filter-chip.is-active {
  color: #0c0e1a;
  background: var(--mint);
  border-color: var(--mint);
}
.chip-mark {
  width: 8px; height: 8px;
  background: currentColor;
}
.chip-count {
  font-size: 10px;
  opacity: 0.7;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 22px;
}
.proj-item {
  --proj-accent: var(--mint);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.proj-item.cat-personal { --proj-accent: var(--pink); }
.proj-item.cat-work     { --proj-accent: var(--mustard); }
.proj-item.cat-school   { --proj-accent: var(--mint); }
.proj-item.is-hidden { display: none; }

.proj-card {
  display: block;
  background: var(--bg-card);
  border: 2px solid var(--line);
  position: relative;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
  height: 100%;
}
.proj-card:hover {
  transform: translate(-4px, -4px);
  border-color: var(--proj-accent);
  box-shadow: 8px 8px 0 var(--proj-accent);
}
.proj-media {
  aspect-ratio: 4 / 3;
  background: var(--bg-elev);
  overflow: hidden;
  border-bottom: 2px solid var(--line);
  position: relative;
}
.proj-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.proj-card:hover .proj-media img { transform: scale(1.02); }
.proj-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(20, 23, 42, 0.7), rgba(20, 23, 42, 0.1));
  opacity: 0;
  transition: opacity 0.2s ease;
  display: grid; place-items: end center;
  padding-bottom: 20px;
  font-family: var(--ff-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--proj-accent);
}
.proj-card:hover .proj-overlay { opacity: 1; }

.proj-meta {
  padding: 22px 22px 26px;
}
.proj-meta-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.proj-num { color: var(--ink-dim); }
.proj-cat { color: var(--proj-accent); }
.proj-cat::before { content: '◆ '; font-size: 8px; }
.proj-title {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.1;
  margin-bottom: 6px;
  color: var(--ink-bright);
}
.proj-desc {
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.5;
}

/* ---------- project detail ---------- */
.project { --proj-accent: var(--mint); }
.project.cat-personal { --proj-accent: var(--pink); }
.project.cat-work     { --proj-accent: var(--mustard); }
.project.cat-school   { --proj-accent: var(--mint); }

.project-hero {
  padding: clamp(40px, 6vw, 80px) 0 0;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ff-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 28px;
  transition: color 0.18s ease, gap 0.18s ease;
}
.back-link:hover { color: var(--proj-accent); gap: 14px; }

.project-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 20px;
}
.project-meta-row .proj-cat { color: var(--proj-accent); }

.project-title {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(48px, 8vw, 110px);
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.project-summary {
  font-size: clamp(18px, 1.6vw, 22px);
  color: var(--ink-muted);
  max-width: 60ch;
  margin-bottom: 56px;
  line-height: 1.55;
}

.project-cover {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.project-cover img {
  display: block;
  max-width: 100%;
  width: auto;
  height: auto;
  margin: 0 auto;
  border: 2px solid var(--line-2);
  background: var(--bg-elev);
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
}

.project-body {
  padding-top: clamp(48px, 6vw, 80px);
  padding-bottom: clamp(60px, 8vw, 100px);
}
.project-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 18px;
  margin-top: 48px;
}
.gal-item {
  background: var(--bg-elev);
  border: 2px solid var(--line);
  padding: 12px;
}
.gal-item img {
  display: block;
  max-width: 100%;
  width: auto;
  height: auto;
  margin: 0 auto;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
}
.gal-item figcaption {
  margin-top: 10px;
  font-family: var(--ff-mono);
  font-size: 12px;
  color: var(--ink-muted);
  letter-spacing: 0.05em;
}

.project-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
}
.proj-nav-link {
  --link-accent: var(--mint);
  padding: clamp(28px, 4vw, 48px) clamp(20px, 4vw, 48px);
  display: grid;
  gap: 8px;
  transition: background 0.2s ease;
}
.proj-nav-link.cat-personal { --link-accent: var(--pink); }
.proj-nav-link.cat-work     { --link-accent: var(--mustard); }
.proj-nav-link.cat-school   { --link-accent: var(--mint); }
.proj-nav-link.next { text-align: right; border-left: 1px solid var(--line); }
.proj-nav-link:hover { background: rgba(247, 232, 200, 0.03); }
.proj-nav-link .dir {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.proj-nav-link .title {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.05;
  color: var(--ink-bright);
  transition: color 0.2s ease;
}
.proj-nav-link:hover .title { color: var(--link-accent); }

/* ---------- footer ---------- */
.site-footer {
  margin-top: 60px;
  background: var(--bg-elev);
  border-top: 1px solid var(--line);
  position: relative;
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(50px, 8vw, 90px) var(--gutter) 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
  gap: clamp(30px, 5vw, 70px);
  padding-bottom: clamp(40px, 6vw, 70px);
}
.footer-eyebrow {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mint);
  margin-bottom: 18px;
}
.socials { display: grid; gap: 8px; }
.social {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--ff-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink);
  transition: color 0.18s ease, transform 0.18s ease;
}
.social:hover { color: var(--mustard); transform: translateX(4px); }
.social .key {
  color: var(--mint);
  display: inline-block;
  min-width: 28px;
}
.footer-location, .footer-language {
  color: var(--ink-muted);
  font-size: 14px;
}
.footer-location { font-size: 16px; color: var(--ink); margin-bottom: 4px; }
.footer-location .dot { margin: 0 10px; color: var(--mint); }

.footer-mark { text-align: right; }
.footer-tagline {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.3;
  margin-bottom: 24px;
  color: var(--ink-bright);
}
.footer-copy {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-dim);
}

.footer-strip {
  display: grid;
  grid-template-columns: repeat(60, 1fr);
  height: 14px;
}
.footer-strip span {
  display: block;
}
.footer-strip span:nth-child(7n+1) { background: var(--pink); }
.footer-strip span:nth-child(7n+2) { background: var(--mustard); }
.footer-strip span:nth-child(7n+3) { background: var(--mint); }
.footer-strip span:nth-child(7n+4) { background: var(--cyan); }
.footer-strip span:nth-child(7n+5) { background: var(--purple); }
.footer-strip span:nth-child(7n+6) { background: var(--coral); }
.footer-strip span:nth-child(7n+7) { background: var(--green); }

/* ---------- reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: calc(var(--idx, 0) * 80ms);
}
.reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-art { order: -1; max-width: 480px; margin: 0 auto; }
  .featured-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-mark { text-align: left; }
  .about-grid { grid-template-columns: 1fr; }
  .project-nav { grid-template-columns: 1fr; }
  .proj-nav-link.next { border-left: 0; border-top: 1px solid var(--line); text-align: left; }
}

@media (max-width: 640px) {
  .nav { display: none; position: fixed; top: 64px; left: 0; right: 0; flex-direction: column; gap: 0; padding: 8px var(--gutter) 24px; background: var(--bg-elev); border-bottom: 1px solid var(--line); }
  .nav.is-open { display: flex; }
  .nav-link { padding: 14px 0; border-bottom: 1px dashed var(--line); }
  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    border: 2px solid var(--line);
  }
  .nav-toggle .bar {
    width: 22px; height: 3px; background: var(--ink);
  }
  .header-inner { grid-template-columns: 1fr auto; }
  .nav-toggle { justify-self: end; }

  .hero-title { font-size: clamp(56px, 16vw, 96px); }
  .skill { grid-template-columns: 1fr; gap: 6px; }
  .skill-pct { text-align: left; }
  .stat-row { grid-template-columns: 1fr; gap: 4px; padding: 10px 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}