/* ============================================================
   FLASCE — FIELD NOTEBOOK REDESIGN
   Primary direction: Engineering CAD + Lab Notebook + Swiss grid
   ============================================================ */

:root {
  /* Paper & ink */
  --paper: oklch(0.975 0.008 75);
  --paper-2: oklch(0.955 0.012 75);
  --paper-3: oklch(0.92 0.015 70);
  --ink: oklch(0.22 0.02 250);
  --ink-2: oklch(0.38 0.02 250);
  --ink-3: oklch(0.58 0.015 250);
  --rule: oklch(0.78 0.012 250);

  /* Accents */
  --steel: oklch(0.48 0.09 245);
  --steel-soft: oklch(0.88 0.03 245);
  --rebar: oklch(0.64 0.17 45);
  --rebar-soft: oklch(0.92 0.05 60);
  --concrete: oklch(0.68 0.01 250);

  /* Grid */
  --grid-unit: 8px;
  --grid-color: oklch(0.85 0.015 250 / 0.55);
  --grid-color-2: oklch(0.72 0.02 250 / 0.45);

  /* Type */
  --sans: "Inter Tight", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, Menlo, monospace;

  --page-max: 1440px;
  --gutter: clamp(20px, 3vw, 48px);
}

[data-theme="dark"] {
  --paper: oklch(0.24 0.008 250);
  --paper-2: oklch(0.28 0.01 250);
  --paper-3: oklch(0.33 0.012 250);
  --ink: oklch(0.96 0.008 75);
  --ink-2: oklch(0.82 0.01 75);
  --ink-3: oklch(0.62 0.015 75);
  --rule: oklch(0.42 0.015 250);
  --steel: oklch(0.72 0.1 245);
  --steel-soft: oklch(0.36 0.04 245);
  --rebar: oklch(0.74 0.16 45);
  --rebar-soft: oklch(0.36 0.07 45);
  --grid-color: oklch(0.42 0.015 250 / 0.5);
  --grid-color-2: oklch(0.5 0.02 250 / 0.38);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01", "cv11";
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  /* graph paper */
  background-image:
    linear-gradient(var(--grid-color-2) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color-2) 1px, transparent 1px),
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size:
    80px 80px,
    80px 80px,
    16px 16px,
    16px 16px;
  background-position: -1px -1px, -1px -1px, -1px -1px, -1px -1px;
}

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

/* ---------- Layout primitives ---------- */
.page {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.rule { border: 0; border-top: 1px solid var(--rule); margin: 0; }
.rule-thick { border: 0; border-top: 2px solid var(--ink); margin: 0; }
.rule-dashed { border: 0; border-top: 1px dashed var(--rule); margin: 0; }

.mono { font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-2); }
.mono-sm { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); }
.serif { font-family: var(--serif); font-style: italic; }

/* ---------- Section chrome ---------- */
.section {
  position: relative;
  padding: clamp(60px, 8vw, 120px) 0;
  border-top: 1px solid var(--rule);
}
.section::before,
.section::after {
  content: "";
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  height: 8px;
  pointer-events: none;
}
.section::before {
  top: 0;
  background: linear-gradient(90deg,
    var(--ink) 0 1px, transparent 1px 16px,
    var(--ink-3) 16px 17px, transparent 17px 32px) repeat-x;
  background-size: 32px 8px;
  opacity: 0.5;
  height: 1px;
  top: -1px;
}

.section-head {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 24px;
  align-items: baseline;
  padding-bottom: 32px;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--rule);
}
.section-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--rebar);
}
.section-title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(28px, 3.2vw, 44px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
}
.section-meta {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-align: right;
  max-width: 220px;
}

/* ---------- Navbar ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  background: color-mix(in oklch, var(--paper) 78%, transparent);
  border-bottom: 1px solid var(--rule);
}
.nav-inner {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 12px var(--gutter);
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-inner .nav-right { margin-left: auto; }
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.brand-logo {
  display: block;
  height: 64px;
  width: auto;
}
.footer .brand-logo {
  height: 80px;
}
/* Dark themes: lift the colored logo so dark-on-dark stays readable */
[data-theme="dark"] .brand-logo {
  filter: brightness(1.4) contrast(1.05);
}

.nav-links {
  display: flex; gap: 28px;
  list-style: none; margin: 0; padding: 0;
  justify-content: center;
}
.nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  position: relative;
  padding: 6px 0;
  transition: color .2s;
}
.nav-links a .nav-num {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  margin-right: 4px;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--rebar);
}

.nav-right {
  display: flex; align-items: center; gap: 8px;
}
.icon-btn {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border: 1px solid var(--rule);
  border-radius: 0;
  color: var(--ink-2);
  transition: all .2s;
  background: var(--paper);
}
.icon-btn:hover { border-color: var(--ink); color: var(--ink); background: var(--paper-2); }
.icon-btn svg { width: 14px; height: 14px; }

/* Hamburger button — hidden on desktop, shown via @media below */
.nav-burger { display: none; }
.nav-burger .ic-close { display: none; }
.nav.open .nav-burger .ic-open { display: none; }
.nav.open .nav-burger .ic-close { display: inline; }

/* ---------- HERO ---------- */
.hero {
  padding: 140px 0 80px;
  position: relative;
  border-top: none;
}
.hero::before {
  display: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  align-items: start;
}
.hero-side {
  position: sticky;
  top: 100px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  line-height: 1.8;
  border-left: 1px solid var(--rule);
  padding-left: 12px;
}
.hero-side .dot {
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--rebar);
  margin-right: 6px;
  vertical-align: middle;
}
.hero-side .row + .row { margin-top: 14px; }
.hero-side .row strong { color: var(--ink); font-weight: 500; display: block; letter-spacing: 0.05em; }

.hero-main {
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-2);
  margin-bottom: 28px;
}
.hero-badge .pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--rebar);
  box-shadow: 0 0 0 0 var(--rebar);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in oklch, var(--rebar) 40%, transparent); }
  70% { box-shadow: 0 0 0 10px color-mix(in oklch, var(--rebar) 0%, transparent); }
  100% { box-shadow: 0 0 0 0 color-mix(in oklch, var(--rebar) 0%, transparent); }
}

.hero-title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(28px, 4.6vw, 72px);
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 36px;
  color: var(--ink);
}
.hero-title .serif {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.03em;
}
.hero-title .accent { color: var(--rebar); }
.hero-title .outline {
  -webkit-text-stroke: 1.5px var(--ink);
  color: transparent;
}

.hero-lede {
  font-family: var(--serif);
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.35;
  max-width: 640px;
  color: var(--ink-2);
  margin: 0 0 48px;
  text-wrap: pretty;
}
.hero-lede b { color: var(--ink); font-weight: 500; font-style: normal; font-family: var(--sans); letter-spacing: -0.01em; }

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: -0.005em;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  transition: all .2s;
  cursor: pointer;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--rebar); border-color: var(--rebar); color: white; }
.btn .num { font-family: var(--mono); font-size: 11px; opacity: 0.6; }

/* Stats row */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.stat {
  padding: 24px 0;
  border-right: 1px solid var(--rule);
  padding-right: 20px;
}
.stat:last-child { border-right: none; }
.stat-value {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.stat-value .unit { font-family: var(--mono); font-size: 14px; color: var(--rebar); margin-left: 4px; font-weight: 500; }
.stat-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin-top: 8px; }

/* ---------- Featured carousel ---------- */
.featured {
  padding: 40px 0 0;
}
.featured-label {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 24px;
  align-items: baseline;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 24px;
}
.featured-stage {
  position: relative;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.featured-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .6s ease;
  display: grid;
  grid-template-columns: 3fr 1fr;
}
.featured-slide.active { opacity: 1; z-index: 1; }
.featured-slide .visual {
  position: relative;
  background: var(--paper-3);
  overflow: hidden;
}
.featured-slide .visual img,
.featured-slide .visual video {
  width: 100%; height: 100%;
  object-fit: contain;
}
.featured-slide .info {
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--paper);
  position: relative;
}
.featured-slide .info::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0; left: 0;
  width: 1px;
  background: var(--rule);
}
.featured-slide .info .tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--rebar);
  margin-bottom: 12px;
}
.featured-slide .info h3 {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(28px, 3vw, 44px);
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 14px;
}
.featured-slide .info p {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.45;
  color: var(--ink-2);
  margin: 0;
  max-width: 380px;
  text-wrap: pretty;
}
.featured-slide .info .specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px dashed var(--rule);
}
.featured-slide .info .spec dt {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 2px;
}
.featured-slide .info .spec dd {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  margin: 0;
  font-weight: 500;
}

.featured-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.featured-dots { display: flex; gap: 8px; }
.featured-dots button {
  width: 40px;
  height: 2px;
  background: var(--rule);
  transition: background .2s;
}
.featured-dots button.active { background: var(--ink); height: 3px; }
.featured-arrows { display: flex; gap: 4px; }
.featured-arrows button {
  width: 36px; height: 36px;
  border: 1px solid var(--rule);
  display: grid; place-items: center;
}
.featured-arrows button:hover { border-color: var(--ink); background: var(--paper-2); }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
}
.about-photo {
  position: relative;
}
.about-photo img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  filter: grayscale(0.2) contrast(1.05);
  border: 1px solid var(--rule);
}
.about-photo .dim {
  position: absolute;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
}
.about-photo .dim-top { top: -20px; left: 0; right: 0; border-top: 1px solid var(--ink-3); padding-top: 4px; }
.about-photo .dim-top::before { content: ""; position: absolute; top: 0; left: 0; width: 1px; height: 8px; background: var(--ink-3); }
.about-photo .dim-top::after { content: ""; position: absolute; top: 0; right: 0; width: 1px; height: 8px; background: var(--ink-3); }
.about-photo .dim-side {
  right: -52px;
  top: 50%;
  transform: translateY(-50%) rotate(90deg);
  white-space: nowrap;
}
.about-photo .corner {
  position: absolute;
  width: 12px; height: 12px;
  border: 1.5px solid var(--rebar);
  background: var(--paper);
}
.about-photo .corner-tl { top: -6px; left: -6px; }
.about-photo .corner-tr { top: -6px; right: -6px; }
.about-photo .corner-bl { bottom: -6px; left: -6px; }
.about-photo .corner-br { bottom: -6px; right: -6px; }

.about-body h2 {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 8px;
}
.about-body h2 .serif { color: var(--ink-2); }
.about-body .role { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--rebar); margin-bottom: 32px; }
.about-body p {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-2);
  margin: 0 0 18px;
  text-wrap: pretty;
}
.about-body p b { color: var(--ink); font-family: var(--sans); font-weight: 500; font-style: normal; letter-spacing: -0.005em; }

.timeline {
  margin-top: 40px;
  border-top: 1px solid var(--rule);
}
.timeline-row {
  display: grid;
  grid-template-columns: 100px 1fr 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.timeline-row:hover { background: var(--paper-2); }
.timeline-row .year { font-family: var(--mono); font-size: 13px; color: var(--rebar); font-weight: 500; }
.timeline-row .what { font-size: 15px; font-weight: 500; }
.timeline-row .where { font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.05em; text-transform: uppercase; }

.research-areas {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.research-areas .area {
  background: var(--paper);
  padding: 18px 20px;
  position: relative;
}
.research-areas .area .num { font-family: var(--mono); font-size: 10px; color: var(--rebar); letter-spacing: 0.1em; }
.research-areas .area .label { font-family: var(--sans); font-size: 14px; font-weight: 500; margin-top: 6px; letter-spacing: -0.005em; }

/* ---------- Research / tabs ---------- */
.tabs-bar {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 32px;
}
.tab-btn {
  padding: 14px 22px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all .2s;
}
.tab-btn:hover { color: var(--ink-2); }
.tab-btn.active {
  color: var(--ink);
  border-bottom-color: var(--rebar);
}
.tab-btn .count {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 6px;
  background: var(--paper-3);
  color: var(--ink-2);
  font-size: 10px;
  letter-spacing: 0;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn .3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.pub {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
  transition: background .2s;
  cursor: pointer;
}
.pub:hover { background: var(--paper-2); padding-left: 12px; padding-right: 12px; }
.pub .idx { font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.1em; }
.pub .meta { font-family: var(--mono); font-size: 11px; color: var(--rebar); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 6px; }
.pub h4 { font-family: var(--sans); font-size: 19px; font-weight: 500; margin: 0 0 6px; letter-spacing: -0.01em; line-height: 1.25; }
.pub .venue { font-family: var(--serif); font-style: italic; color: var(--ink-2); font-size: 15px; }
.pub .year-tag { font-family: var(--mono); font-size: 13px; color: var(--ink); font-weight: 500; }
.pub.has-link::after { content: "→"; margin-left: 8px; color: var(--rebar); font-family: var(--mono); }

.pdf-embed {
  margin-top: 20px;
  height: 720px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
}
.pdf-embed iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}
@media (max-width: 720px) {
  .pdf-embed { height: 520px; }
}

.empty-state {
  padding: 48px 0;
  text-align: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  border: 1px dashed var(--rule);
}

/* ---------- Courses ---------- */
.courses-toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.chip {
  padding: 6px 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--rule);
  color: var(--ink-2);
  cursor: pointer;
  transition: all .15s;
}
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }

.course-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.course-table thead th {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-align: left;
  padding: 12px 16px 12px 0;
  border-bottom: 2px solid var(--ink);
}
.course-table tbody tr {
  border-bottom: 1px solid var(--rule);
  transition: background .15s;
}
.course-table tbody tr:hover { background: var(--paper-2); }
.course-table tbody td {
  padding: 14px 16px 14px 0;
  vertical-align: top;
}
.course-table .c-sem { font-family: var(--mono); font-size: 12px; color: var(--ink-2); white-space: nowrap; }
.course-table .c-name { font-weight: 500; }
.course-table .c-lang {
  display: inline-block;
  padding: 2px 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  border: 1px solid var(--rule);
}
.course-table .c-lang.en { border-color: var(--steel); color: var(--steel); }
.course-table .c-lang.tr { border-color: var(--rebar); color: var(--rebar); }
.course-table .c-hour { font-family: var(--mono); color: var(--ink-2); }

/* ---------- Skills ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.skills-col h3 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--rebar);
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink);
}
.skill-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  align-items: center;
}
.skill-row .name { font-size: 15px; font-weight: 500; }
.skill-row .name .since { font-family: var(--mono); font-size: 11px; color: var(--ink-3); margin-left: 6px; font-weight: 400; letter-spacing: 0.03em; }
.skill-row .bar {
  width: 200px;
  height: 6px;
  background: var(--paper-3);
  position: relative;
}
.skill-row .bar .fill {
  position: absolute;
  inset: 0 auto 0 0;
  background: var(--ink);
  transition: width 1s cubic-bezier(.2,.8,.2,1);
}
.skill-row.expert .bar .fill { background: var(--rebar); }
.skill-row .bar-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  margin-top: 4px;
  text-transform: uppercase;
}

/* ---------- Projects ---------- */
.projects-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--rule); margin-bottom: 40px; }
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.project {
  background: var(--paper);
  padding: 0;
  position: relative;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: all .25s;
}
.project:hover { background: var(--paper-2); }
.project .shot {
  aspect-ratio: 16/10;
  overflow: hidden;
  position: relative;
  background: var(--paper-3);
  display: grid;
  place-items: center;
  padding: 10px;
}
.project .shot img {
  width: 100%; height: 100%;
  object-fit: contain;
  transition: transform .6s cubic-bezier(.2,.8,.2,1);
}
.project:hover .shot img { transform: scale(1.04); }
.project .body {
  padding: 20px 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.project .meta-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 10px;
}
.project .meta-row .status {
  color: var(--rebar);
}
.project h3 {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 24px;
  line-height: 1;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}
.project p {
  font-family: var(--serif);
  font-size: 15px;
  line-height: 1.45;
  color: var(--ink-2);
  margin: 0 0 16px;
  flex: 1;
  text-wrap: pretty;
}
.project .tags {
  display: flex; flex-wrap: wrap; gap: 4px;
  margin-bottom: 16px;
}
.project .tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border: 1px solid var(--rule);
  color: var(--ink-2);
}
.project .actions {
  display: flex; gap: 8px;
  padding-top: 14px;
  border-top: 1px dashed var(--rule);
}
.project .btn-sm {
  padding: 8px 14px;
  font-size: 12px;
  font-family: var(--sans);
  font-weight: 500;
  border: 1px solid var(--ink);
  letter-spacing: -0.005em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all .15s;
  cursor: pointer;
}
.project .btn-sm:hover { background: var(--ink); color: var(--paper); }
.project .btn-sm.primary { background: var(--ink); color: var(--paper); }
.project .btn-sm.primary:hover { background: var(--rebar); border-color: var(--rebar); color: white; }

.pub .actions {
  display: flex; gap: 8px;
  margin-top: 12px;
}
.pub .btn-sm {
  padding: 6px 12px;
  font-size: 12px;
  font-family: var(--sans);
  font-weight: 500;
  border: 1px solid var(--ink);
  letter-spacing: -0.005em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  color: var(--ink);
  background: transparent;
  transition: all .15s;
  cursor: pointer;
}
.pub .btn-sm:hover { background: var(--ink); color: var(--paper); }
.pub .btn-sm.primary { background: var(--ink); color: var(--paper); }
.pub .btn-sm.primary:hover { background: var(--rebar); border-color: var(--rebar); color: white; }
.pub { cursor: default; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
.contact-info {
  font-family: var(--serif);
}
.contact-info .big {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 24px;
  color: var(--ink);
}
.contact-info .big .serif { color: var(--ink-2); }
.contact-info p { font-size: 18px; line-height: 1.5; color: var(--ink-2); margin: 0 0 32px; max-width: 460px; text-wrap: pretty; }

.contact-channels {
  border-top: 1px solid var(--rule);
}
.contact-channels .row {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  align-items: center;
  font-family: var(--sans);
}
.contact-channels .row .label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  font-size: 16px;
  color: var(--ink-2);
}
.contact-channels .row .label i { line-height: 1; }
.contact-channels .row .value { font-weight: 500; min-width: 0; overflow-wrap: anywhere; }
.contact-channels .row a { color: var(--rebar); font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em; white-space: nowrap; }

.form {
  padding: 32px;
  border: 1px solid var(--ink);
  background: var(--paper-2);
  position: relative;
}
.form::before {
  content: "FORM / 01";
  position: absolute;
  top: -10px; left: 20px;
  background: var(--paper);
  padding: 0 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-3);
}
.form-field { margin-bottom: 20px; }
.form-field label {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 8px;
}
.form-field label .req { color: var(--rebar); }
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 12px 0;
  border: none;
  border-bottom: 1px solid var(--ink-2);
  background: transparent;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  outline: none;
  transition: border-color .2s;
}
.form-field input:focus,
.form-field textarea:focus { border-bottom-color: var(--rebar); }
.form-field textarea { resize: vertical; min-height: 90px; }
.form-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px dashed var(--rule);
  margin-top: 24px;
}
.form-footer .count { font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.05em; }

/* ---------- Footer ---------- */
.footer {
  border-top: 2px solid var(--ink);
  padding: 48px 0 24px;
  margin-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer h5 { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); margin: 0 0 14px; }
.footer ul { list-style: none; padding: 0; margin: 0; font-size: 13px; }
.footer ul li { padding: 4px 0; }
.footer ul a { color: var(--ink-2); }
.footer ul a:hover { color: var(--rebar); }

.footer .social-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0;
}
.footer .social-list li { padding: 0; }
.footer .social-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border: 1px solid var(--rule);
  color: var(--ink-2);
  font-size: 15px;
  transition: all .15s;
}
.footer .social-list a:hover {
  color: var(--paper);
  background: var(--ink);
  border-color: var(--ink);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-top: 24px;
  margin-top: 40px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.footer-grid .lang-heading { margin-top: 18px; }
.footer-grid .lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.footer-grid .lang-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 0;
  padding: 2px 4px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  cursor: pointer;
  transition: color .15s, opacity .15s;
  opacity: 0.55;
}
.footer-grid .lang-link:hover { color: var(--ink); opacity: 1; }
.footer-grid .lang-link.active,
.footer-grid .lang-link[aria-pressed="true"] { color: var(--ink); font-weight: 700; opacity: 1; }
.footer-grid .lang-flag {
  display: inline-block;
  width: 18px;
  height: auto;
  vertical-align: -3px;
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.08);
}
.footer-grid .lang-sep { color: var(--ink-3); opacity: 0.5; }

@media (max-width: 640px) {
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ---------- Tweaks panel ---------- */
.tweaks {
  position: fixed;
  bottom: 20px; right: 20px;
  width: 280px;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  z-index: 200;
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  font-family: var(--sans);
  display: none;
  max-height: 80vh;
  overflow-y: auto;
}
.tweaks.visible { display: block; }
.tweaks-head {
  padding: 14px 16px;
  border-bottom: 1px solid var(--ink);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.tweaks-body { padding: 16px; }
.tweaks-section { margin-bottom: 18px; }
.tweaks-section h6 { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin: 0 0 8px; }
.tweaks-section .opts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
}
.tweaks-section .opt {
  padding: 8px 10px;
  font-size: 12px;
  border: 1px solid var(--rule);
  text-align: left;
  transition: all .15s;
  font-family: var(--mono);
  letter-spacing: 0.03em;
}
.tweaks-section .opt:hover { border-color: var(--ink); }
.tweaks-section .opt.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* Responsive */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-side { display: none; }
  .section-head { grid-template-columns: 1fr; }
  .section-meta { text-align: left; }
  .featured-stage { aspect-ratio: auto; min-height: 640px; }
  .featured-slide { grid-template-columns: 1fr; grid-template-rows: minmax(220px, 1fr) auto; }
  .featured-slide .info { padding: 20px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-photo img { aspect-ratio: 4/3; }
  .about-photo .dim-side { display: none; }
  .skills-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .stat { border-bottom: 1px solid var(--rule); }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  /* Mobile nav drawer */
  .nav-burger { display: inline-flex; }
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0; right: 0;
    background: var(--paper);
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .18s ease, transform .18s ease;
    z-index: 50;
  }
  .nav.open .nav-links {
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }
  .nav-links li { width: 100%; }
  .nav-links a {
    display: flex;
    width: 100%;
    padding: 14px 6px;
    border-bottom: 1px dashed var(--rule);
  }
  .nav-links li:last-child a { border-bottom: 0; }
}

/* ---------- Store buttons / play chip / lightbox / QR ---------- */
.project .btn-sm { text-decoration: none; display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.project .btn-sm.store { background: var(--paper); }
.project .btn-sm.store.ms:hover { background: #0078d4; color: #fff; border-color: #0078d4; }
.project .btn-sm.store.gp:hover { background: #01875f; color: #fff; border-color: #01875f; }
.project .btn-sm.icon { padding: 8px 10px; min-width: 44px; justify-content: center; }
.project .btn-sm[disabled] { opacity: 0.5; cursor: not-allowed; }
.project .btn-sm[disabled]:hover { background: var(--paper); color: var(--ink); border-color: var(--rule); }
.project .actions { flex-wrap: wrap; }

.project .shot { position: relative; }
.project .shot[data-lightbox] { cursor: zoom-in; }
.project .shot .play-chip {
  position: absolute; inset: auto auto 14px 14px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em;
  padding: 6px 10px; background: rgba(0,0,0,0.72); color: #fff;
  border: 1px solid rgba(255,255,255,0.4);
  pointer-events: none;
}

/* Lightbox */
.lb {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.88);
  display: none; z-index: 10000;
  padding: 40px;
  align-items: center; justify-content: center;
}
.lb.open { display: flex; }
.lb-close {
  position: absolute; top: 18px; right: 22px;
  width: 44px; height: 44px;
  background: transparent; color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  font-size: 28px; line-height: 1; cursor: pointer;
  font-family: var(--mono);
}
.lb-close:hover { background: #fff; color: #000; }
.lb-frame {
  max-width: min(1200px, 94vw);
  max-height: calc(100vh - 80px);
  display: flex; flex-direction: column; gap: 12px;
}
.lb-caption {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase; color: rgba(255,255,255,0.7);
}
.lb-caption:empty { display: none; }
.lb-body {
  background: var(--paper);
  display: flex; align-items: center; justify-content: center;
  overflow: auto;
}
.lb-body img, .lb-body video {
  max-width: 100%; max-height: calc(100vh - 140px);
  display: block; object-fit: contain;
}
.lb-body .lb-pdf {
  width: min(1100px, 95vw); height: calc(100vh - 140px);
  border: 0; background: var(--paper);
}
.lb-msg {
  padding: 48px 56px; max-width: 640px; min-width: min(480px, 90vw);
  font-family: var(--sans); color: var(--ink);
}
.lb-msg .lb-msg-h {
  font-family: var(--serif); font-size: 28px; font-weight: 600;
  margin-bottom: 14px; letter-spacing: -0.01em;
}
.lb-msg p { font-size: 15px; line-height: 1.55; color: var(--ink-2); margin: 0 0 16px; }
.lb-msg-actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 20px 0; }
.lb-msg-actions .btn-sm {
  padding: 10px 16px; font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.04em; text-transform: uppercase; text-decoration: none;
  border: 1px solid var(--ink); background: var(--paper); color: var(--ink);
}
.lb-msg-actions .btn-sm.primary { background: var(--ink); color: var(--paper); }
.lb-msg-actions .btn-sm.primary:hover { background: var(--rebar); border-color: var(--rebar); color: #fff; }
.lb-msg-dim { font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin-top: 20px; }

/* QR grid inside lightbox */
.qr-modal { padding: 40px 44px; }
.qr-grid { display: grid; gap: 18px; margin: 18px 0 8px; }
.qr-grid:has(.qr-card:nth-child(2)) { grid-template-columns: 1fr 1fr; }
.qr-card {
  display: flex; gap: 16px; align-items: center;
  padding: 14px; border: 1px solid var(--rule); background: var(--paper-2);
}
.qr-card .qr-img { flex-shrink: 0; background: #fff; padding: 6px; border: 1px solid var(--rule); }
.qr-card .qr-img img { width: 120px; height: 120px; display: block; }
.qr-card .qr-meta { min-width: 0; }
.qr-label { font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; font-weight: 700; text-transform: uppercase; }
.qr-note { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); margin: 4px 0 8px; }
.qr-link { font-family: var(--mono); font-size: 10px; color: var(--steel); word-break: break-all; line-height: 1.4; }
.qr-link:hover { color: var(--rebar); }

/* Placeholder tiles for missing imagery */
.shot.placeholder-tile {
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 16 / 10;
  background:
    repeating-linear-gradient(45deg, oklch(0.94 0.03 340) 0 12px, oklch(0.92 0.04 340) 12px 24px);
  border: 1px dashed oklch(0.62 0.12 340);
  cursor: default;
}
.shot.placeholder-tile .ph-inner { text-align: center; padding: 16px; }
.shot.placeholder-tile .ph-glyph { font-size: 44px; line-height: 1; margin-bottom: 10px; filter: drop-shadow(0 2px 0 rgba(0,0,0,0.08)); }
.shot.placeholder-tile .ph-label {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em;
  text-transform: uppercase; color: oklch(0.32 0.1 340); font-weight: 700;
}
.shot.placeholder-tile.coming-soon-tile {
  background:
    repeating-linear-gradient(45deg, var(--paper-2) 0 12px, var(--paper) 12px 24px);
  border: 1px dashed var(--rule);
}
.shot.placeholder-tile.coming-soon-tile .ph-label { color: var(--ink-2); }
.shot.placeholder-tile.coming-soon-tile .ph-glyph { filter: none; opacity: 0.7; }
@media (max-width: 640px) {
  .qr-grid, .qr-grid:has(.qr-card:nth-child(2)) { grid-template-columns: 1fr; }
  .lb-msg { padding: 28px 24px; }
  .lb { padding: 16px; }
}