/* ============================================================
   Marcin Kolber — personal site
   Bold dark + neon accent
   ============================================================ */

:root {
  --bg: #0a0a0b;
  --bg-elev: #131316;
  --bg-elev-2: #1a1a1e;
  --line: #26262c;
  --line-strong: #3a3a42;
  --fg: #ededed;
  --fg-muted: #8b8b92;
  --fg-dim: #5d5d65;
  --accent: #c8f751;
  --accent-soft: rgba(200, 247, 81, 0.14);
  --accent-line: rgba(200, 247, 81, 0.32);
  --danger: #ff7a7a;

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  /* layout density (set by tweaks) */
  --pad-section: clamp(56px, 7vw, 112px);
  --pad-x: clamp(24px, 5vw, 80px);
  --gap-row: 28px;
  --line-height-display: 0.95;
  --radius: 14px;

  color-scheme: dark;
}

[data-density="compact"] {
  --pad-section: clamp(36px, 4.5vw, 72px);
  --pad-x: clamp(20px, 4vw, 56px);
  --gap-row: 18px;
}
[data-density="spacious"] {
  --pad-section: clamp(80px, 10vw, 168px);
  --pad-x: clamp(28px, 6vw, 112px);
  --gap-row: 40px;
}

[data-theme="light"] {
  --bg: #f4f1ea;
  --bg-elev: #ebe7dd;
  --bg-elev-2: #e0dccf;
  --line: #d2cdbd;
  --line-strong: #b6b09d;
  --fg: #14140f;
  --fg-muted: #5a584c;
  --fg-dim: #8a8775;
  --accent: #4a6a14;
  --accent-soft: rgba(74, 106, 20, 0.12);
  --accent-line: rgba(74, 106, 20, 0.32);
  color-scheme: light;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-display);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background-color 350ms ease, color 350ms ease;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  color: inherit;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

/* ============================================================
   GRAIN + GRID OVERLAY
   ============================================================ */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.5;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.35 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
[data-theme="light"] .grain { opacity: 0.6; }

/* ============================================================
   APP SHELL
   ============================================================ */
.app {
  position: relative;
  z-index: 2;
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

/* ============================================================
   TOP NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0 14px;
  background: linear-gradient(to bottom, var(--bg) 60%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.nav-mark {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-mark .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.nav-links {
  display: flex;
  gap: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
}
.nav-links a {
  position: relative;
  padding: 6px 0;
  transition: color 200ms;
}
.nav-links a:hover { color: var(--fg); }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--accent);
  transition: right 250ms ease;
}
.nav-links a:hover::after { right: 0; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  transition: border-color 200ms, color 200ms;
}
.theme-toggle:hover { border-color: var(--line-strong); color: var(--fg); }
.theme-toggle .glyph {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: inset -3px -3px 0 var(--bg);
}

.contact-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  transition: background 200ms, color 200ms;
}
.contact-pill:hover {
  background: var(--accent);
  color: var(--bg);
}

/* ============================================================
   REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms cubic-bezier(.2,.7,.2,1), transform 700ms cubic-bezier(.2,.7,.2,1);
}
.reveal.in {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 80ms; }
.reveal-delay-2 { transition-delay: 160ms; }
.reveal-delay-3 { transition-delay: 240ms; }
.reveal-delay-4 { transition-delay: 320ms; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: clamp(40px, 8vw, 96px) 0 var(--pad-section);
  position: relative;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  text-transform: uppercase;
  margin-bottom: 28px;
}
.hero-meta .pill {
  display: inline-flex; gap: 8px; align-items: center;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
}
.hero-meta .live-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.hero-title {
  font-size: clamp(56px, 11vw, 168px);
  line-height: var(--line-height-display);
  letter-spacing: -0.04em;
  font-weight: 500;
  margin: 0;
  text-wrap: balance;
}
.hero-title .sub {
  display: block;
  color: var(--fg-muted);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.03em;
}
.hero-title .accent-word {
  color: var(--accent);
}

.hero-roles {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 36px 0 0;
}

.role-chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px 11px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
  cursor: pointer;
  transition: all 240ms cubic-bezier(.2,.7,.2,1);
  user-select: none;
}
.role-chip .num {
  font-size: 10px;
  color: var(--fg-dim);
}
.role-chip:hover {
  border-color: var(--line-strong);
  color: var(--fg);
}
.role-chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}
.role-chip.active .num {
  color: var(--bg);
  opacity: 0.65;
}

.role-detail {
  margin-top: 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  min-height: 220px;
}
.role-detail-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.role-blurb {
  font-size: clamp(20px, 1.8vw, 26px);
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--fg);
  text-wrap: pretty;
  margin: 0;
}
.role-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 32px;
  align-content: start;
}
.role-stat {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}
.role-stat-num {
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1;
}
.role-stat-num .accent { color: var(--accent); }
.role-stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--fg-muted);
  margin-top: 8px;
  text-transform: uppercase;
}

@media (max-width: 760px) {
  .role-detail { grid-template-columns: 1fr; gap: 28px; }
}

/* ============================================================
   SECTION HEADER
   ============================================================ */
.section {
  padding: var(--pad-section) 0;
  border-top: 1px solid var(--line);
}

.section-head {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 24px;
  align-items: baseline;
  margin-bottom: 56px;
}
.section-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fg-dim);
}
.section-title {
  font-size: clamp(36px, 5vw, 64px);
  letter-spacing: -0.03em;
  font-weight: 500;
  margin: 0;
  line-height: 1;
}
.section-title em {
  color: var(--fg-muted);
  font-style: italic;
  font-weight: 400;
}
.section-sub {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
  margin-top: 14px;
  max-width: 60ch;
  line-height: 1.6;
}

/* ============================================================
   SKILLS / STACK
   ============================================================ */
.skill-groups {
  display: grid;
  gap: 56px;
}

.skill-group-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 0 0 22px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}
.skill-group-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-elev);
  color: var(--accent);
}
.skill-group-title {
  font-size: clamp(22px, 2.2vw, 28px);
  letter-spacing: -0.02em;
  font-weight: 500;
  margin: 0;
  line-height: 1.1;
}
.skill-group-sub {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
  margin-top: 4px;
}
.skill-group-count {
  text-align: right;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  color: var(--fg-dim);
}
.skill-group-count .num {
  display: block;
  font-size: 22px;
  color: var(--accent);
  letter-spacing: -0.01em;
  line-height: 1;
}
.skill-group-count .lbl {
  font-size: 10px;
  text-transform: uppercase;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

.skill-card {
  position: relative;
  padding: 22px 22px 20px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: grab;
  transition: transform 240ms cubic-bezier(.2,.7,.2,1), border-color 200ms, background 200ms;
  user-select: none;
}
.skill-card:hover {
  border-color: var(--accent-line);
  transform: translateY(-3px);
}
.skill-card.dragging {
  cursor: grabbing;
  opacity: 0.5;
  border-style: dashed;
}
.skill-card.drag-over {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.skill-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.skill-cat {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-dim);
}
.skill-grip {
  display: grid;
  grid-template-columns: repeat(2, 3px);
  grid-template-rows: repeat(3, 3px);
  gap: 3px;
  opacity: 0.4;
  transition: opacity 200ms;
}
.skill-grip span {
  width: 3px; height: 3px; border-radius: 50%;
  background: var(--fg-muted);
}
.skill-card:hover .skill-grip { opacity: 1; }

.skill-name {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
}
.skill-detail {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--fg-muted);
  line-height: 1.55;
  margin: 0 0 18px;
}

.skill-bar {
  height: 4px;
  background: var(--line);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 8px;
}
.skill-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 1100ms cubic-bezier(.2,.7,.2,1);
}
.skill-card.in .skill-bar-fill { transform: scaleX(var(--lvl, 0.7)); }

.skill-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--fg-dim);
  letter-spacing: 0.06em;
}
.skill-foot .yrs {
  color: var(--accent);
}

/* ============================================================
   TIMELINE / EXPERIENCE
   ============================================================ */
.timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
}

.tl-row {
  display: grid;
  grid-template-columns: 180px 1fr auto;
  gap: 32px;
  padding: 24px 6px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: background 220ms, padding 220ms;
  align-items: baseline;
  position: relative;
}
.tl-row:hover {
  background: var(--bg-elev);
  padding-left: 14px;
}
.tl-row.open {
  background: var(--bg-elev);
  padding-left: 14px;
}
.tl-row::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 240ms;
}
.tl-row:hover::before, .tl-row.open::before { transform: scaleY(1); }

.tl-period {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
  padding-top: 6px;
}
.tl-period .now-tag {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  background: var(--accent);
  color: var(--bg);
  border-radius: 3px;
  font-size: 10px;
  letter-spacing: 0.06em;
}

.tl-main { min-width: 0; }
.tl-role {
  font-size: clamp(22px, 2.2vw, 28px);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0 0 4px;
}
.tl-co {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}
.tl-co .dot { color: var(--fg-dim); margin: 0 8px; }

.tl-toggle {
  width: 36px; height: 36px;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: grid;
  place-items: center;
  align-self: center;
  transition: transform 240ms cubic-bezier(.2,.7,.2,1), border-color 200ms, background 200ms, color 200ms;
  color: var(--fg-muted);
  flex-shrink: 0;
}
.tl-row:hover .tl-toggle { border-color: var(--line-strong); color: var(--fg); }
.tl-row.open .tl-toggle {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
  transform: rotate(45deg);
}

.tl-detail {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 32px;
  overflow: hidden;
  max-height: 0;
  transition: max-height 480ms cubic-bezier(.2,.7,.2,1), padding 480ms;
  padding: 0 6px;
}
.tl-row.open .tl-detail {
  max-height: 4000px;
  padding: 12px 14px 28px;
}
.tl-period-sub {
  margin-top: 4px;
  font-size: 10px;
  color: var(--fg-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.tl-co .dot { margin: 0 8px; color: var(--fg-muted); }
.tl-co strong { color: var(--fg); font-weight: 500; }

/* === Sub-timeline of phases inside a company entry === */
.tl-phases {
  margin: 22px 0 18px;
  padding: 18px 18px 6px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg);
}
.tl-phase {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 14px;
  cursor: pointer;
  padding-bottom: 18px;
  position: relative;
}
.tl-phase:last-child { padding-bottom: 6px; }
.tl-phase-rail {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 6px;
}
.tl-phase-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--line-strong);
  flex-shrink: 0;
  z-index: 1;
  transition: all 200ms;
}
.tl-phase-dot.now {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent) 18%, transparent);
}
.tl-phase.open .tl-phase-dot {
  background: var(--fg);
  border-color: var(--fg);
}
.tl-phase-line {
  flex: 1;
  width: 1px;
  background: var(--line);
  margin-top: 4px;
}
.tl-phase-main { min-width: 0; }
.tl-phase-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}
.tl-phase-period {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}
.tl-phase-period .dur { opacity: 0.7; }
.tl-phase-role {
  margin: 0;
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--fg);
}
.tl-phase-meta {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 99px;
  white-space: nowrap;
  flex-shrink: 0;
}
.tl-phase-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 320ms cubic-bezier(0.2, 0.8, 0.2, 1), margin-top 200ms;
}
.tl-phase.open .tl-phase-body {
  max-height: 600px;
  margin-top: 12px;
}
.tl-phase-body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--fg-soft);
  max-width: 60ch;
}
.tl-phase-body p:last-child { margin-bottom: 0; }
.tl-phase-body strong { color: var(--fg); font-weight: 500; }
.tl-phase:hover .tl-phase-role { color: var(--accent); }
.tl-detail-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.tl-detail-body p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.55;
  color: var(--fg-muted);
  max-width: 64ch;
}
.tl-detail-body strong { color: var(--fg); font-weight: 500; }

.tl-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-top: 14px;
}
.tl-tag {
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}

@media (max-width: 760px) {
  .tl-row { grid-template-columns: 1fr auto; gap: 16px; }
  .tl-period { grid-column: 1 / -1; padding-top: 0; }
  .tl-detail { grid-template-columns: 1fr; }
  .tl-detail .tl-detail-meta { display: none; }
}

/* ============================================================
   EDUCATION  ·  British universities
   ============================================================ */
.edu-banner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
  margin: 0 0 36px;
}
.edu-banner-rule {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}
.edu-banner-text {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-soft);
  white-space: nowrap;
}
.edu-banner-flag { font-size: 16px; }

.edu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.edu-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px 28px 24px;
  background: var(--bg);
  overflow: hidden;
  transition: transform 240ms, border-color 240ms;
}
.edu-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--uni-soft) 0%, transparent 60%);
  pointer-events: none;
  opacity: 0.85;
}
.edu-card::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--uni);
}
.edu-card:hover {
  transform: translateY(-3px);
  border-color: var(--uni);
}
.edu-card > * { position: relative; z-index: 1; }

.edu-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}
.edu-crest {
  display: flex;
  align-items: center;
  gap: 12px;
}
.edu-crest-shield {
  width: 56px;
  height: 64px;
  background: var(--uni);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display, var(--font-serif, Georgia, serif));
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.04em;
  /* shield silhouette via clip-path: simple pointed bottom */
  clip-path: polygon(0 0, 100% 0, 100% 65%, 50% 100%, 0 65%);
  flex-shrink: 0;
}
.edu-crest-rule {
  width: 1px;
  height: 48px;
  background: var(--line-strong);
  opacity: 0.5;
}
.edu-meta {
  text-align: right;
}
.edu-years {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-soft);
  letter-spacing: 0.06em;
}
.edu-russell {
  margin-top: 6px;
  display: inline-block;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  background: var(--uni);
  color: #fff;
  border-radius: 99px;
}

.edu-wordmark {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.edu-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.edu-name {
  font-family: var(--font-display, var(--font-serif, Georgia, serif));
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 0.95;
  color: var(--uni);
  margin-bottom: 10px;
}
.edu-name-2 {
  font-family: var(--font-display, var(--font-serif, Georgia, serif));
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 500;
  letter-spacing: 0.18em;
  line-height: 1;
  color: var(--uni);
  margin: -4px 0 12px;
  opacity: 0.85;
}
.edu-motto {
  font-family: var(--font-serif, Georgia, serif);
  font-style: italic;
  font-size: 13px;
  color: var(--fg-soft);
  letter-spacing: 0.02em;
}

.edu-city {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-soft);
  letter-spacing: 0.06em;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.edu-flag { font-size: 16px; }

.edu-degree {
  margin-bottom: 18px;
}
.edu-degree-name {
  font-size: 17px;
  font-weight: 500;
  color: var(--fg);
  letter-spacing: -0.005em;
  margin-bottom: 8px;
}
.edu-degree-class {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--uni);
  border-radius: 99px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--uni);
  background: var(--uni-soft);
}
.edu-class-pip {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--uni);
}

.edu-bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.edu-bullets li {
  font-size: 14px;
  line-height: 1.55;
  color: var(--fg-soft);
  padding-left: 18px;
  position: relative;
}
.edu-bullets li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 8px; height: 1px;
  background: var(--uni);
}

@media (max-width: 760px) {
  .edu-grid { grid-template-columns: 1fr; }
  .edu-banner { grid-template-columns: 1fr; gap: 8px; }
  .edu-banner-rule { display: none; }
}

/* Certifications block */
.cert-block {
  margin-top: 56px;
}
.cert-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
  margin-bottom: 20px;
}
.cert-head-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-soft);
}
.cert-head-rule {
  height: 1px;
  background: var(--line);
}
.cert-head-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
}
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.cert-card {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  align-items: center;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg);
  transition: transform 200ms, border-color 200ms;
}
.cert-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}
.cert-mark {
  width: 56px;
  height: 56px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 4px;
}
.cert-mark-tile {
  width: 100%;
  height: 100%;
}
.cert-tile-r { background: #F25022; }
.cert-tile-g { background: #7FBA00; }
.cert-tile-b { background: #00A4EF; }
.cert-tile-y { background: #FFB900; }
.cert-issuer {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 4px;
}
.cert-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--fg);
  letter-spacing: -0.005em;
  margin-bottom: 6px;
  line-height: 1.3;
}
.cert-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-soft);
}
.cert-code {
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: 99px;
  letter-spacing: 0.06em;
}
.cert-dot { color: var(--fg-muted); }

@media (max-width: 760px) {
  .cert-grid { grid-template-columns: 1fr; }
  .cert-head { grid-template-columns: 1fr; gap: 6px; }
  .cert-head-rule { display: none; }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: start;
}
.about-text {
  font-size: clamp(20px, 1.8vw, 26px);
  line-height: 1.45;
  letter-spacing: -0.012em;
  color: var(--fg);
  text-wrap: pretty;
  margin: 0 0 24px;
}
.about-text:last-child { margin-bottom: 0; }
.about-text .accent { color: var(--accent); }

.about-side {
  display: grid;
  gap: 24px;
}

.about-portrait {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elev);
  aspect-ratio: 4 / 5;
}
.about-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 22%;
  object-fit: cover;
  display: block;
  filter: grayscale(0.15) contrast(1.02);
  transition: filter 400ms ease, transform 600ms cubic-bezier(.2,.7,.2,1);
}
.about-portrait:hover img {
  filter: grayscale(0) contrast(1.05);
  transform: scale(1.02);
}
.about-portrait::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 55%, rgba(10,10,11,0.65));
}
.about-portrait-tag {
  position: absolute;
  left: 16px;
  bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: #ededed;
  z-index: 1;
}
.about-portrait-tag .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
[data-theme="light"] .about-portrait::after {
  background: linear-gradient(180deg, transparent 55%, rgba(20,20,15,0.55));
}
.about-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--bg-elev);
}
.about-card-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 14px;
}
.about-card-list {
  list-style: none;
  margin: 0; padding: 0;
}
.about-card-list li {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
}
.about-card-list li:last-child { border-bottom: none; }
.about-card-list li .v {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
}

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
}

/* ============================================================
   NOW
   ============================================================ */
.now-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.now-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background: var(--bg-elev);
  position: relative;
  transition: border-color 200ms, transform 240ms;
}
.now-card:hover {
  border-color: var(--accent-line);
  transform: translateY(-2px);
}
.now-card-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.now-card-tag .live {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 1.6s ease-in-out infinite;
}
.now-card h4 {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}
.now-card p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--fg-muted);
}

@media (max-width: 900px) {
  .now-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.foot {
  padding: 64px 0 48px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: end;
}
.foot-mark {
  font-size: clamp(40px, 6vw, 80px);
  letter-spacing: -0.03em;
  font-weight: 500;
  line-height: 0.95;
  margin: 0;
}
.foot-mark em {
  color: var(--accent);
  font-style: italic;
  font-weight: 400;
}
.foot-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  text-align: right;
  line-height: 1.8;
}
.foot-links {
  display: flex; gap: 18px;
  justify-content: flex-end;
}
.foot-links a {
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color 200ms, color 200ms;
}
.foot-links a:hover { color: var(--fg); border-color: var(--accent); }

@media (max-width: 700px) {
  .foot { grid-template-columns: 1fr; }
  .foot-meta { text-align: left; }
  .foot-links { justify-content: flex-start; }
  .nav-links { display: none; }
}

/* hide drag preview on touch */
@media (hover: none) {
  .skill-card { cursor: pointer; }
  .skill-grip { display: none; }
}