/* ============================================================
   styles.css — shared design system
   ------------------------------------------------------------
   01. Design tokens (light / dark)
   02. Base + reset
   03. Frame + custom cursor
   04. Topnav + theme picker
   05. Layout (.layout / .sidebar / .content)
   06. Sidebar (header, subnav, socials)
   07. Section typography (tags, titles, lead, mark, ulink)
   08. Pills + skill groups
   09. Experience entries
   10. About projects lead-in (lead-grid + preview)
   11. About sidebar DAG nav
   12. Projects page (work-card)
   13. Project detail page (hero, callouts, stats, tiles)
   14. Playground (cards / photos / books)
   15. Modal (book + recipe)
   16. Contact (profile photo / icons / resume)
   17. Blog (notion embed)
   18. Status pill + reveal + animations
   19. Responsive
   ============================================================ */

/* 01. DESIGN TOKENS */
:root {
  --bg: #e6e6e6;
  --surface: #efefef;
  --surface-2: #f4f4f4;
  --ink: #1a1a1a;
  --soft: #4a4a4a;
  --muted: #7a7a7a;
  --dim: #b3b3b3;
  --line: #c8c8c8;
  --line-soft: #d8d8d8;
  --sans: "General Sans", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", Menlo, monospace;
  --pad: 28px;
}

[data-theme="dark"] {
  --bg: #0d0d0d;
  --surface: #161616;
  --surface-2: #1e1e1e;
  --ink: #f2f2f2;
  --soft: #c8c8c8;
  --muted: #8a8a8a;
  --dim: #4a4a4a;
  --line: #2a2a2a;
  --line-soft: #1c1c1c;
}

/* ============================================================
   BASE
   ============================================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { background: var(--bg); }
body {
  font-family: var(--sans);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.6;
  cursor: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background 0.55s ease, color 0.55s ease;
}
a { color: inherit; text-decoration: none; cursor: none; }
button { font: inherit; background: none; border: 0; color: inherit; cursor: none; }
::selection { background: var(--ink); color: var(--bg); }

/* ============================================================
   FRAME (hairline viewport border)
   ============================================================ */
.frame { position: fixed; inset: 0; pointer-events: none; z-index: 30; }
.frame::before, .frame::after,
.frame > span:nth-child(1), .frame > span:nth-child(2) {
  content: ""; position: absolute; background: var(--ink); opacity: 0.85;
}
.frame::before { top: var(--pad); left: var(--pad); right: var(--pad); height: 1px; }
.frame::after { bottom: var(--pad); left: var(--pad); right: var(--pad); height: 1px; }
.frame > span:nth-child(1) { left: var(--pad); top: var(--pad); bottom: var(--pad); width: 1px; }
.frame > span:nth-child(2) { right: var(--pad); top: var(--pad); bottom: var(--pad); width: 1px; }

/* ============================================================
   CURSOR
   ============================================================ */
.cur-ring, .cur-dot {
  position: fixed; left: 0; top: 0; pointer-events: none; z-index: 50;
  border-radius: 50%; mix-blend-mode: difference;
}
.cur-ring {
  width: 26px; height: 26px;
  border: 1px solid #fff;
  transform: translate(-50%, -50%);
  transition: width 0.28s, height 0.28s, opacity 0.2s;
}
.cur-dot {
  width: 3px; height: 3px;
  background: #fff;
  transform: translate(-50%, -50%);
}
.cur-ring.big { width: 56px; height: 56px; }
@media (hover: none) {
  .cur-ring, .cur-dot { display: none; }
  body, a, button { cursor: auto; }
}

/* ============================================================
   TOPNAV
   ============================================================ */
.topnav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 40;
  padding: calc(var(--pad) + 14px) calc(var(--pad) + 28px);
  display: flex; align-items: center; justify-content: space-between;
  background: transparent;
}
.topnav-home {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.06em; color: var(--muted);
  transition: color 0.2s;
}
.topnav-home:hover { color: var(--ink); }
.topnav-home .home-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ink); display: inline-block;
}
.topnav-home .home-arrow {
  display: inline-block;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.topnav-home:hover .home-arrow { transform: translateX(-4px); }

.topnav-links {
  display: flex; gap: 22px;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.06em;
}
.topnav-links a {
  color: var(--muted);
  transition: color 0.2s;
  text-transform: lowercase;
}
.topnav-links a:hover, .topnav-links a.active { color: var(--ink); }
.topnav-links a.active { font-weight: 500; }

.topnav-right {
  display: flex;
  align-items: center;
  gap: 22px;
}
.topnav-sep {
  width: 1px;
  height: 12px;
  background: var(--line);
  display: inline-block;
}

/* Magnetic hover utility */
.magnetic {
  display: inline-flex;
  align-items: center;
  transition: transform 0.38s cubic-bezier(0.22, 1, 0.36, 1), color 0.2s;
  will-change: transform;
}

/* ============================================================
   THEME PICKER
   ============================================================ */
.theme-pick {
  display: flex; align-items: center; gap: 18px;
}
.theme-pick button {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.06em; color: var(--muted);
  display: inline-flex; align-items: center; gap: 7px;
  transition: color 0.2s;
}
.theme-pick button::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: transparent; border: 1px solid var(--muted);
  transition: background 0.2s, border-color 0.2s;
}
.theme-pick button:hover { color: var(--ink); }
.theme-pick button[aria-pressed="true"] { color: var(--ink); }
.theme-pick button[aria-pressed="true"]::before {
  background: var(--ink); border-color: var(--ink);
}

/* ============================================================
   LAYOUT
   ============================================================ */
.layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 24px 96px;
  max-width: 1280px;
  margin: 0 auto;
  padding: calc(var(--pad) + 70px) calc(var(--pad) + 26px) calc(var(--pad) + 60px);
}
.sidebar {
  position: sticky;
  top: calc(var(--pad) + 70px);
  align-self: start;
  display: flex; flex-direction: column;
  height: calc(100vh - 180px);
  min-height: 480px;
}
.content { min-width: 0; }

/* ============================================================
   SIDEBAR (playground/blog/contact)
   ============================================================ */
.sidebar-header { margin-bottom: 32px; }
.sidebar-name {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 38px;
  line-height: 1;
  letter-spacing: -0.035em;
  margin-bottom: 14px;
}
.sidebar-role {
  font-family: var(--sans);
  font-style: italic;
  font-weight: 400;
  font-size: 17px;
  color: var(--soft);
  margin-bottom: 6px;
}
.sidebar-tagline {
  font-family: var(--sans);
  font-size: 12px;
  color: var(--muted);
  line-height: 1.55;
}

.subnav {
  display: flex; flex-direction: column;
  gap: 2px;
  margin-bottom: auto;
  margin-top: 28px;
}
.subnav a {
  display: flex; align-items: center; gap: 14px;
  padding: 8px 0;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.2s;
}
.subnav a::before {
  content: ""; height: 1px;
  background: var(--muted);
  width: 20px;
  transition: width 0.25s, background 0.25s;
}
.subnav a:hover, .subnav a.active { color: var(--ink); }
.subnav a:hover::before, .subnav a.active::before { background: var(--ink); width: 48px; }

.sidebar-socials {
  display: flex; gap: 10px;
  margin-top: 24px;
}
.sidebar-socials a {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 30px; height: 30px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.25s;
}
.sidebar-socials a:hover {
  background: var(--ink); color: var(--bg);
  border-color: var(--ink);
  transform: translateY(-2px);
}
.sidebar-socials svg { width: 13px; height: 13px; }

/* ============================================================
   SECTIONS / TYPOGRAPHY
   ============================================================ */
section {
  padding: 56px 0 28px;
  scroll-margin-top: 100px;
}
section:first-child { padding-top: 0; }

.section-tag {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: flex; align-items: center; gap: 12px;
}
.section-tag::after {
  content: ""; flex: 1; height: 1px; background: var(--line); max-width: 80px;
}
.section-title {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 32px;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: 22px;
}
.section-title em {
  font-style: italic;
  font-weight: 400;
  color: var(--soft);
}
.section-title.query-title {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0;
}
.section-title.query-title .kw { color: var(--ink); font-weight: 600; }

.lead {
  font-family: var(--sans);
  font-size: 15px;
  color: var(--soft);
  margin-bottom: 14px;
  line-height: 1.75;
  max-width: 78ch;
}
.lead strong { color: var(--ink); font-weight: 500; }
.lead em { font-style: italic; }

mark.hl {
  background: transparent;
  border-bottom: 1px solid var(--ink);
  color: var(--ink);
  font-weight: 500;
  padding: 0 1px;
}

/* Organization brand colors (used on About + Experience) */
.org-um     { color: #00274c !important; font-weight: 500; }
.org-snu    { color: #60a5fa !important; font-weight: 500; }
.org-maetel { color: #ff6b35 !important; font-weight: 500; }
[data-theme="dark"] .org-um  { color: #93c5fd !important; }
[data-theme="dark"] .org-snu { color: #bfdbfe !important; }
mark.ink {
  background: var(--ink);
  color: var(--bg);
  padding: 1px 6px;
  border-radius: 2px;
}

.placeholder {
  font-family: var(--mono);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* Wipe underline */
.ulink { position: relative; display: inline-block; }
.ulink::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -2px;
  height: 1px; background: currentColor;
  transform: scaleX(1); transform-origin: bottom right;
  transition: transform 0.35s cubic-bezier(0.7, 0, 0.2, 1);
}
.ulink:hover::after { transform: scaleX(0); transform-origin: bottom left; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.4, 0, 0.2, 1); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ============================================================
   SKILLS / PILLS
   ============================================================ */
.skill-group { margin-bottom: 14px; }
.skill-group-name {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  margin-bottom: 8px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.pills { display: flex; flex-wrap: wrap; gap: 6px; }
.pill {
  padding: 3px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink);
  background: transparent;
  white-space: nowrap;
}

/* ============================================================
   EXPERIENCE
   ============================================================ */
.exp-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.exp-item:last-child { border-bottom: none; }
.exp-row {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px; margin-bottom: 4px; flex-wrap: wrap;
}
.exp-role {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 15px;
}
.exp-role .company {
  color: var(--soft);
  font-weight: 400;
  font-style: italic;
}
.exp-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
}
.exp-item .pills { margin: 10px 0 4px; }
.exp-bullets { list-style: none; margin-top: 10px; padding: 0; }
.exp-bullets li {
  font-family: var(--sans);
  font-size: 13.5px;
  color: var(--soft);
  margin-bottom: 6px;
  padding-left: 18px;
  position: relative;
  line-height: 1.7;
}
.exp-bullets li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--ink);
  font-family: var(--mono);
}
.exp-bullets li strong { color: var(--ink); font-weight: 500; }

/* ============================================================
   STATUS PILL
   ============================================================ */
.status-pill {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 16px;
  padding: 5px 12px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  background: rgba(255, 107, 53, 0.12);
  border: 1px solid #ffa580;
  color: #c4501a;
}
.status-pill .status-dot { background: #ff6b35; }
[data-theme="dark"] .status-pill {
  background: rgba(255, 107, 53, 0.16);
  border-color: #ff8b5e;
  color: #ffb190;
}
.status-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: currentColor;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.6); }
}

/* ============================================================
   DAG NAV (About page sidebar)
   ============================================================ */
.dag-nav {
  margin-bottom: auto;
  display: flex; flex-direction: column;
}
.dag-nav-label {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.dag-nav-svg {
  width: 100%; max-width: 220px;
  height: auto;
  display: block;
}
.dag-node-rect {
  fill: transparent;
  stroke: var(--line);
  stroke-width: 1;
  transition: fill 0.25s, stroke 0.25s;
  cursor: none;
}
.dag-node:hover .dag-node-rect { stroke: var(--ink); }
.dag-node.active .dag-node-rect {
  fill: var(--ink);
  stroke: var(--ink);
}
.dag-node-label {
  font-family: var(--mono);
  font-size: 10px;
  fill: var(--soft);
  pointer-events: none;
  user-select: none;
  letter-spacing: 0.04em;
}
.dag-node:hover .dag-node-label { fill: var(--ink); }
.dag-node.active .dag-node-label { fill: var(--bg); }
.dag-edge { stroke: var(--line); stroke-width: 1; fill: none; }

/* ============================================================
   PROJECTS LEAD-IN (About page · list + preview)
   ============================================================ */
.lead-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}
.lead-preview {
  position: relative;
  aspect-ratio: 4/3;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0 24px 0 0;
  overflow: hidden;
  align-self: start;
}
.preview-pane {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}
.preview-pane.active { opacity: 1; }
.preview-bg-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(48px, 9vw, 96px);
  color: var(--dim);
  opacity: 0.4;
  letter-spacing: -0.04em;
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}
.preview-pane svg {
  position: relative;
  width: 78%;
  height: 78%;
  z-index: 2;
  color: var(--ink);
}
.preview-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.lead-list {
  display: flex;
  flex-direction: column;
}
.lead-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--sans);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.015em;
  color: var(--soft);
  cursor: none;
  transition: color 0.25s, padding-left 0.36s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
}
.lead-item:first-child { border-top: 1px solid var(--line); }
.lead-item:hover, .lead-item.active {
  color: var(--ink);
  padding-left: 24px;
}
.lead-item-name {
  display: inline-block;
}
.lead-item-cat {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: lowercase;
  transition: color 0.2s;
}
.lead-item:hover .lead-item-cat,
.lead-item.active .lead-item-cat { color: var(--ink); }
.lead-item::after {
  content: "";
  position: absolute;
  bottom: -7px;
  left: 50%;
  transform: translateX(-50%) scale(0);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 2;
}
.lead-item:hover::after,
.lead-item.active::after {
  transform: translateX(-50%) scale(1);
}

@media (max-width: 720px) {
  .lead-grid { grid-template-columns: 1fr; }
  .lead-preview { aspect-ratio: 16/10; }
  .lead-item { font-size: 18px; }
}

/* ============================================================
   PROJECTS PAGE (work-card grid)
   ============================================================ */
.work-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
}
.work-card {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 36px;
  align-items: stretch;
  text-decoration: none;
  color: inherit;
  cursor: none;
}
.work-card:nth-child(even) {
  grid-template-columns: 1fr 1.1fr;
}
.work-card:nth-child(even) .work-card-visual { order: 2; }
.work-card:nth-child(even) .work-card-body { order: 1; padding-right: 0; padding-left: 8px; }

.work-card-visual {
  position: relative;
  aspect-ratio: 4/3;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0 28px 0 0;
  overflow: hidden;
  transition: border-color 0.35s, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.work-card:hover .work-card-visual {
  border-color: var(--ink);
  transform: translateY(-4px);
}
.work-card-visual svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.work-card-index {
  position: absolute;
  top: 14px;
  left: 16px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.14em;
  z-index: 2;
}
.work-card-cat {
  position: absolute;
  top: 14px;
  right: 18px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink);
  letter-spacing: 0.16em;
  background: var(--bg);
  padding: 2px 8px;
  border: 1px solid var(--ink);
  z-index: 2;
}

.work-card-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-right: 12px;
}
.work-card-meta {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.work-card-meta::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--muted);
}
.work-card-title {
  font-family: var(--sans);
  font-weight: 500;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
  color: var(--ink);
  transition: opacity 0.25s;
}
.work-card-title .arrow {
  display: inline-block;
  font-family: var(--mono);
  font-weight: 400;
  margin-left: 8px;
  font-size: 0.6em;
  vertical-align: middle;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
.work-card:hover .work-card-title .arrow {
  transform: translate(6px, -6px);
}
.work-card-teaser {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--soft);
  line-height: 1.65;
  margin-bottom: 18px;
  max-width: 48ch;
}
.work-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

/* Project detail page */
.project-hero {
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}
.project-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.project-eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--muted);
}
.project-title {
  font-family: var(--sans);
  font-weight: 500;
  font-size: clamp(40px, 5.4vw, 76px);
  line-height: 1.0;
  letter-spacing: -0.035em;
  margin-bottom: 22px;
}
.project-tagline {
  font-family: var(--sans);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(20px, 2.2vw, 28px);
  color: var(--soft);
  line-height: 1.25;
  max-width: 32ch;
  margin-bottom: 24px;
}
.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 18px;
}
.project-meta b {
  color: var(--ink);
  font-weight: 500;
  margin-left: 8px;
}
.project-section {
  margin-bottom: 48px;
}
.project-section h3 {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

/* Enhanced hero meta row: TIMELINE | COMPANY | ROLE | STACK */
.project-hero {
  padding-bottom: 0;
  border-bottom: none;
  margin-bottom: 40px;
}
.project-meta-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-top: 28px;
}
.project-meta-row .col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.project-meta-row .label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.project-meta-row .value {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 17px;
  color: var(--ink);
  line-height: 1.35;
  letter-spacing: -0.015em;
}

/* Lead paragraph (bold opener) + body paragraph */
.project-section .lead-para {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 19px;
  line-height: 1.45;
  color: var(--ink);
  margin-bottom: 14px;
  letter-spacing: -0.015em;
}
.project-section .body-para {
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.75;
  color: var(--soft);
  margin-bottom: 14px;
}

/* Callout box (light surface tile) */
.project-callout {
  background: var(--surface);
  border-radius: 10px;
  padding: 26px 28px;
  margin-top: 24px;
}
.project-callout .callout-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.project-callout h4 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 24px;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: 14px;
}
.project-callout p {
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--soft);
  margin-bottom: 0;
}

/* "How might we" lightbulb callout */
.hmw-callout {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: var(--surface);
  border-radius: 10px;
  padding: 22px 26px;
  margin-top: 24px;
}
.hmw-callout .bulb {
  font-size: 18px;
  line-height: 1;
  margin-top: 6px;
}
.hmw-callout .hmw-body { flex: 1; }
.hmw-callout .hmw-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.hmw-callout .hmw-q {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.45;
  color: var(--ink);
  letter-spacing: -0.015em;
}

/* Stat tiles — 3-column grid inside callout (smaller) */
.project-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 20px;
}
.project-stats .stat .v {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 22px;
  color: var(--ink);
  letter-spacing: -0.025em;
  line-height: 1.1;
}
.project-stats .stat .k {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--muted);
  margin-top: 4px;
}

/* Stat tiles — 3 large boxes (Where we're going style) */
.project-tiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 28px;
}
.project-tiles .tile {
  background: var(--surface);
  border-radius: 12px;
  padding: 28px;
}
.project-tiles .tile .v {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 32px;
  color: var(--ink);
  letter-spacing: -0.03em;
  line-height: 1.05;
}
.project-tiles .tile .k {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--muted);
  margin-top: 6px;
}

/* Prominent CTA buttons (GitHub / demo links) */
.project-cta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--bg);
  font-family: var(--sans);
  font-weight: 500;
  font-size: 14px;
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: background 0.22s, color 0.22s, transform 0.22s;
}
.cta-btn:hover {
  background: transparent;
  color: var(--ink);
  transform: translateY(-1px);
}
.cta-btn.outline {
  background: transparent;
  color: var(--ink);
}
.cta-btn.outline:hover {
  background: var(--ink);
  color: var(--bg);
}

/* "What I work on" bullet list with → arrows */
.work-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.work-list li {
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--soft);
  padding: 8px 0 8px 28px;
  position: relative;
}
.work-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  top: 8px;
  color: var(--muted);
  font-family: var(--mono);
}

/* Project title (use full-bold pop) */
.project-title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(48px, 6vw, 84px);
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin-bottom: 22px;
  color: var(--ink);
}

@media (max-width: 720px) {
  .project-meta-row { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  .project-stats { grid-template-columns: repeat(2, 1fr); }
  .project-tiles { grid-template-columns: 1fr; }
}

/* ============================================================
   PLAYGROUND CARDS / PHOTOS / BOOKS
   ============================================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.card {
  border: 1px solid var(--line);
  overflow: hidden;
  cursor: none;
  background: transparent;
  transition: border-color 0.22s, transform 0.22s;
}
.card:hover { border-color: var(--ink); transform: translateY(-2px); }
.card-img { aspect-ratio: 4/3; background: var(--surface); }
.recipe-card-1 .card-img { background-image: url("../images/recipes/food1.png"); background-size: cover; background-position: center; }
.recipe-card-2 .card-img { background-image: url("../images/recipes/food2.png"); background-size: cover; background-position: center; }
.recipe-card-3 .card-img { background-image: url("../images/recipes/food3.png"); background-size: cover; background-position: center; }
.recipe-card-4 .card-img { background-image: url("../images/recipes/food4.png"); background-size: cover; background-position: center; }
.recipe-card-5 .card-img { background-image: url("../images/recipes/food5.png") !important; background-size: cover !important; background-position: center !important; }
.card-body { padding: 12px 14px; }
.card-title {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 14px;
  margin-bottom: 6px;
}
.card-meta {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}
.card-meta span:not(:last-child)::after { content: " · "; }
.card-teaser {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.5;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.photo {
  aspect-ratio: 1;
  background: var(--surface);
  border: 1px solid var(--line);
  cursor: none;
  position: relative;
  overflow: hidden;
  transition: border-color 0.22s, transform 0.18s;
}
.photo:hover { transform: scale(1.02); border-color: var(--ink); }
/* Remove chromatic gradient backgrounds — keep monochrome */
.photo:nth-child(n) { background: var(--surface); }
.photo-exif {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: rgba(0, 0, 0, 0.75);
  color: white;
  font-family: var(--mono);
  font-size: 9px;
  padding: 4px 8px;
  opacity: 0;
  transition: opacity 0.2s;
  letter-spacing: 0.04em;
}
.photo:hover .photo-exif { opacity: 1; }

.bookshelf {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 18px;
  padding: 14px 0 20px;
  position: relative;
}
.bookshelf::before {
  content: ""; position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px; background: var(--line);
}
.book {
  aspect-ratio: 2/3;
  border: 1px solid transparent;
  cursor: none;
  padding: 14px 12px;
  color: #fff;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 12px;
  line-height: 1.35;
  display: flex; flex-direction: column;
  justify-content: space-between;
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1), filter 0.28s, box-shadow 0.28s;
}
/* Per-book spine colors (left to right, 1–5) */
.book:nth-child(1) { background: #1e3a5f; }  /* deep navy */
.book:nth-child(2) { background: #5a3a52; }  /* plum */
.book:nth-child(3) { background: #a8625a; }  /* dusty coral */
.book:nth-child(4) { background: #3a5a47; }  /* forest green */
.book:nth-child(5) { background: #5e2832; }  /* deep maroon */
.book:hover {
  transform: translateY(-4px);
  filter: brightness(1.1);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15);
}
.book:hover .book-author { opacity: 0.85; }
.book-author {
  font-size: 10px;
  font-weight: 400;
  opacity: 0.65;
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

/* ============================================================
   MODAL
   ============================================================ */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: none;
  align-items: center; justify-content: center;
  z-index: 100;
  padding: 24px;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--bg);
  border: 1px solid var(--line);
  max-width: 560px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 26px 30px;
}
.modal-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}
.modal-title {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}
.modal-author {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 16px;
  font-family: var(--mono);
}
.modal-summary {
  font-size: 14px;
  line-height: 1.75;
  color: var(--soft);
  white-space: pre-wrap;
}
.modal-close {
  float: right;
  font-size: 22px;
  cursor: none;
  color: var(--muted);
  margin-top: -4px;
}
.modal-close:hover { color: var(--ink); }

/* Photo lightbox (playground photos) */
.photo-lightbox {
  background: rgba(0, 0, 0, 0.92);
  padding: 40px;
}
.photo-lightbox img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
  margin: auto;
  user-select: none;
}
.photo-lightbox .modal-close {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 1;
  background: transparent;
  color: #fff;
  font-size: 30px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 0;
  cursor: none;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.photo-lightbox .modal-close:hover { opacity: 1; }

.recipe-modal {
  max-width: 680px;
  max-height: 90vh;
  padding: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.recipe-image {
  height: 320px;
  overflow: hidden;
  position: relative;
  border-bottom: 1px solid var(--line);
}
.recipe-image img { width: 100%; height: 100%; object-fit: cover; }
.recipe-modal .modal-close {
  position: absolute;
  top: 14px; right: 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 50%;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  margin: 0; z-index: 1;
  color: var(--ink);
}
.recipe-content {
  padding: 26px 30px;
  overflow-y: auto;
  flex: 1;
}
.recipe-section { margin-bottom: 22px; }
.recipe-section h4 {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 15px;
  margin-bottom: 10px;
}
.ingredient-item {
  font-size: 13.5px;
  line-height: 1.65;
  margin-bottom: 4px;
  color: var(--soft);
}
.instruction-step {
  font-size: 13.5px;
  line-height: 1.65;
  margin-bottom: 8px;
  color: var(--soft);
  display: flex;
  gap: 8px;
}
.step-number {
  font-family: var(--mono);
  font-weight: 500;
  color: var(--ink);
  min-width: 22px;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-photo { margin: 22px 0 28px; text-align: center; }
.profile-photo {
  width: 200px; height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--line);
  margin-bottom: 12px;
  transition: transform 0.3s ease;
  cursor: none;
}
.profile-photo.bounce { animation: photoBounceFun 0.8s ease-in-out; }
@keyframes photoBounceFun {
  0% { transform: scale(1) rotate(0deg); }
  25% { transform: scale(1.08) rotate(-3deg); }
  50% { transform: scale(1.14) rotate(3deg); }
  75% { transform: scale(1.06) rotate(-1deg); }
  100% { transform: scale(1) rotate(0deg); }
}
.photo-caption {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  line-height: 1.4;
}

.contact-icons {
  display: flex; gap: 10px;
  margin: 26px 0 24px;
}
.contact-icon {
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink);
  transition: background 0.22s, color 0.22s, border-color 0.22s, transform 0.22s;
}
.contact-icon:hover {
  background: var(--ink); color: var(--bg);
  border-color: var(--ink);
  transform: translateY(-2px);
}
.contact-icon svg { width: 18px; height: 18px; }

.resume-btn {
  display: inline-block;
  padding: 9px 22px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 13px;
  background: transparent;
  color: var(--ink);
  margin-top: 8px;
  transition: background 0.22s, color 0.22s;
}
.resume-btn:hover { background: var(--ink); color: var(--bg); }

.last-updated {
  margin-top: 60px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  text-align: right;
  letter-spacing: 0.08em;
}

/* ============================================================
   BLOG
   ============================================================ */
.notion-embed {
  margin: 30px 0;
  border: 1px solid var(--line);
  overflow: hidden;
}
.notion-embed.full-content {
  margin: 0;
  height: 100vh;
  border: none;
}
.notion-embed iframe {
  display: block;
  border: none;
  background: var(--bg);
}
.notion-embed.full-content iframe {
  height: calc(100vh - 40px);
  transform: scale(0.8);
  transform-origin: top left;
  width: 125%;
}

/* Celebration (contact easter egg) */
.celebration-emoji {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  font-size: 20px;
  animation: celebrationFloat 2s ease-out forwards;
}
@keyframes celebrationFloat {
  0% { opacity: 1; transform: translateY(0) rotate(0deg) scale(1); }
  100% { opacity: 0; transform: translateY(-100px) rotate(360deg) scale(0.5); }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
    padding: 80px 22px 50px;
    gap: 32px;
  }
  .sidebar {
    position: static;
    height: auto;
    min-height: 0;
  }
  .topnav {
    padding: 18px 18px;
  }
  .topnav-links { gap: 12px; }
  .topnav-links a { font-size: 10px; }
  .sidebar-name { font-size: 32px; }
  section { padding: 40px 0 22px; }
  .work-card,
  .work-card:nth-child(even) {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .work-card:nth-child(even) .work-card-visual { order: 0; }
  .work-card:nth-child(even) .work-card-body { order: 0; padding-left: 0; }
  .work-grid { gap: 44px; }
}
@media (max-width: 600px) {
  .photo-grid { grid-template-columns: repeat(2, 1fr); }
  .bookshelf { grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); }
}