/* ==========================================================================
   Name Place Holder — portfolio stylesheet
   --------------------------------------------------------------------------
   Aesthetic: instrumentation panel / engineering drawing.
   Near-black ground, blueprint grid, acid-lime signal, ember accent for
   anything physical. Everything themable from the tokens in :root.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------------- */
:root {
  /* Palette */
  --bg:            #08090a;
  --bg-elev:       #0c0e10;
  --surface:       rgba(233, 236, 230, 0.025);
  --surface-hi:    rgba(233, 236, 230, 0.055);
  --text:          #e9ece6;
  --text-dim:      #a9afa6;
  --muted:         #7f857c;
  --line:          rgba(233, 236, 230, 0.10);
  --line-soft:     rgba(233, 236, 230, 0.055);

  /* Accents — lime = software/primary, ember = hardware/physical */
  --signal:        #c8f31d;
  --signal-deep:   #93b800;
  --ember:         #ff8a3d;

  /* Channel values, consumed by the canvas background via getComputedStyle */
  --signal-rgb:    200 243 29;
  --ember-rgb:     255 138 61;
  --node-rgb:      233 236 230;

  /* Type */
  --font-display: 'Bricolage Grotesque', 'Trebuchet MS', sans-serif;
  --font-body:    'IBM Plex Sans', 'Segoe UI', sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, 'Cascadia Mono', monospace;

  --fs-hero:   clamp(3.1rem, 12.5vw, 10.5rem);
  --fs-h2:     clamp(1.9rem, 4.6vw, 3.4rem);
  --fs-h3:     clamp(1.15rem, 2vw, 1.4rem);
  --fs-body:   clamp(1rem, 0.96rem + 0.2vw, 1.09rem);
  --fs-small:  0.8rem;
  --fs-micro:  0.68rem;

  /* Space & shape */
  --gutter:       clamp(1.15rem, 4vw, 3rem);
  --max-w:        1240px;
  --section-y:    clamp(5.5rem, 12vh, 9.5rem);
  --radius:       4px;
  --header-h:     72px;

  /* Motion */
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-io:   cubic-bezier(0.65, 0, 0.35, 1);
  --dur:       0.55s;

  color-scheme: dark;
}

/* --------------------------------------------------------------------------
   2. Reset & base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0 0 1.05em; }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration: none; }
img, svg, canvas { display: block; max-width: 100%; }
ul, dl, dd { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

::selection { background: var(--signal); color: #08090a; }

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

.mono {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.06em;
}

.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: fixed;
  top: 0; left: 50%;
  transform: translate(-50%, -120%);
  z-index: 200;
  padding: 0.7rem 1.2rem;
  background: var(--signal);
  color: #08090a;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  transition: transform 0.25s var(--ease-out);
}
.skip-link:focus-visible { transform: translate(-50%, 0); }

/* Scrollbar (WebKit) */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: #1b1f21;
  border: 2px solid var(--bg);
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover { background: var(--signal-deep); }

/* --------------------------------------------------------------------------
   3. Background stack: canvas → blueprint grid → veil → grain
   -------------------------------------------------------------------------- */
.bg-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -3;
  pointer-events: none;
}

/* Blueprint grid, drawn on body so it sits under everything but the canvas */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -4;
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 84px 84px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 25%, #000 25%, transparent 78%);
          mask-image: radial-gradient(ellipse 90% 70% at 50% 25%, #000 25%, transparent 78%);
  pointer-events: none;
}

.bg-veil {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(1100px 620px at 78% -8%, rgb(var(--signal-rgb) / 0.09), transparent 62%),
    radial-gradient(760px 520px at 8% 108%, rgb(var(--ember-rgb) / 0.06), transparent 66%),
    linear-gradient(180deg, transparent 45%, var(--bg) 100%);
}

/* Film grain — inline SVG turbulence, no network request */
.bg-grain {
  position: fixed;
  inset: -50%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.32;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  animation: grain 6s steps(6) infinite;
}
@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  20%  { transform: translate(-3%, 2%); }
  40%  { transform: translate(2%, -4%); }
  60%  { transform: translate(-2%, -2%); }
  80%  { transform: translate(3%, 3%); }
}

/* --------------------------------------------------------------------------
   4. Header & navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease-out), border-color 0.35s var(--ease-out),
              backdrop-filter 0.35s var(--ease-out);
}
.site-header.is-stuck {
  background: rgba(8, 9, 10, 0.78);
  border-bottom-color: var(--line);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
          backdrop-filter: blur(14px) saturate(140%);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: var(--header-h);
}

.header__progress {
  position: absolute;
  inset: auto 0 -1px;
  height: 2px;
  background: var(--line-soft);
}
.header__progress > span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--signal-deep), var(--signal));
  box-shadow: 0 0 12px rgb(var(--signal-rgb) / 0.55);
}

/* Brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.16em;
}
.brand__mark {
  width: 11px; height: 11px;
  border: 1.5px solid var(--signal);
  transform: rotate(45deg);
  transition: transform 0.5s var(--ease-out), background 0.3s;
}
.brand:hover .brand__mark { transform: rotate(225deg); background: var(--signal); }
.brand__dot { color: var(--signal); }

/* Right-hand cluster: language switch + nav. `order` puts the language pill
   after the links on desktop, but before the burger on mobile. */
.header__right {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}
.lang { order: 2; display: inline-flex; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 99px; overflow: hidden; }
.nav  { order: 1; }

.lang__btn {
  padding: 0.34rem 0.62rem;
  background: var(--bg);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--muted);
  transition: color 0.25s, background 0.25s;
}
.lang__btn:hover { color: var(--text); }
.lang__btn.is-active { background: var(--signal); color: #08090a; }

/* Nav list */
.nav__list {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.5rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-dim);
  transition: color 0.25s;
}
.nav__idx {
  font-style: normal;
  font-size: var(--fs-micro);
  color: var(--muted);
  transition: color 0.25s;
}
.nav__link::after {
  content: '';
  position: absolute;
  left: 0.85rem; right: 0.85rem; bottom: 0.3rem;
  height: 1px;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}
.nav__link:hover { color: var(--text); }
.nav__link:hover::after,
.nav__link.is-active::after { transform: scaleX(1); }
.nav__link.is-active { color: var(--text); }
.nav__link.is-active .nav__idx { color: var(--signal); }

/* Burger */
.nav__toggle {
  display: none;
  position: relative;
  width: 42px; height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.nav__bars,
.nav__bars::before,
.nav__bars::after {
  position: absolute;
  left: 50%;
  width: 17px; height: 1.5px;
  background: var(--text);
  transition: transform 0.35s var(--ease-out), opacity 0.2s;
}
.nav__bars {
  top: 50%;
  transform: translate(-50%, -50%);
}
.nav__bars::before, .nav__bars::after { content: ''; left: 0; }
.nav__bars::before { top: -6px; }
.nav__bars::after  { top:  6px; }

.nav__toggle[aria-expanded='true'] .nav__bars { background: transparent; }
.nav__toggle[aria-expanded='true'] .nav__bars::before { transform: translateY(6px) rotate(45deg); }
.nav__toggle[aria-expanded='true'] .nav__bars::after  { transform: translateY(-6px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   5. Sections & shared blocks
   -------------------------------------------------------------------------- */
.section {
  position: relative;
  padding-block: var(--section-y);
  scroll-margin-top: var(--header-h);
}
.section + .section::before {
  content: '';
  position: absolute;
  inset: 0 var(--gutter) auto;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 14px);
}

.section__head {
  max-width: 62ch;
  margin-bottom: clamp(2.5rem, 6vw, 4.25rem);
}
.section__head--center {
  margin-inline: auto;
  text-align: center;
}
.section__index {
  display: inline-block;
  margin-bottom: 1.1rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--signal);
  color: var(--signal);
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
}
.section__title { font-size: var(--fs-h2); }
.section__title em {
  font-style: normal;
  color: var(--muted);
}
.section__sub {
  margin-top: 1.1rem;
  color: var(--text-dim);
  max-width: 52ch;
}
.section__head--center .section__sub { margin-inline: auto; }

/* Buttons */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.83rem;
  letter-spacing: 0.04em;
  overflow: hidden;
  isolation: isolate; /* so the ::before wipe paints above the button's own fill */
  transition: color 0.3s, border-color 0.3s, transform 0.3s var(--ease-out);
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--signal);
  transform: translateY(101%);
  transition: transform 0.42s var(--ease-out);
  z-index: -1;
}
.btn > * { position: relative; }
.btn:hover { transform: translateY(-2px); }
.btn:hover::before { transform: translateY(0); }

.btn--primary {
  background: var(--signal);
  border-color: var(--signal);
  color: #08090a;
  font-weight: 600;
}
.btn--primary::before { background: #e6ff62; }
.btn--ghost { color: var(--text); }
.btn--ghost:hover { color: #08090a; border-color: var(--signal); }
.btn--lg { padding: 1.05rem 2rem; font-size: 0.9rem; }

.btn__arrow { transition: transform 0.35s var(--ease-out); }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* Status dot */
.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 0 rgb(var(--signal-rgb) / 0.55);
  animation: pulse 2.4s var(--ease-io) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgb(var(--signal-rgb) / 0.5); }
  70%  { box-shadow: 0 0 0 9px rgb(var(--signal-rgb) / 0); }
  100% { box-shadow: 0 0 0 0 rgb(var(--signal-rgb) / 0); }
}

/* Corner ticks — the drafting-drawing motif reused across cards */
.ticked { position: relative; }
.ticked::before,
.ticked::after {
  content: '';
  position: absolute;
  width: 9px; height: 9px;
  border: 1px solid var(--signal);
  opacity: 0;
  transition: opacity 0.35s var(--ease-out), transform 0.35s var(--ease-out);
}
.ticked::before {
  top: 0; left: 0;
  border-right: 0; border-bottom: 0;
  transform: translate(5px, 5px);
}
.ticked::after {
  bottom: 0; right: 0;
  border-left: 0; border-top: 0;
  transform: translate(-5px, -5px);
}
.ticked:hover::before,
.ticked:hover::after,
.ticked:focus-within::before,
.ticked:focus-within::after { opacity: 1; transform: translate(0, 0); }

/* --------------------------------------------------------------------------
   6. Hero
   -------------------------------------------------------------------------- */
.hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100svh;
  padding-top: calc(var(--header-h) + 3rem);
  padding-bottom: 6rem;
}
.hero__inner { width: 100%; }

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1.6rem;
  padding: 0.42rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: var(--surface);
  color: var(--text-dim);
  font-size: var(--fs-micro);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero__title {
  font-size: var(--fs-hero);
  font-weight: 800;
  /* 'wght' must be restated — font-variation-settings resets unlisted axes */
  font-variation-settings: 'wght' 800, 'wdth' 92;
  letter-spacing: -0.055em;
  margin-bottom: 1.4rem;
}
.hero__title-line { display: block; }
.hero__title-line--outline {
  margin-left: clamp(0.5rem, 5vw, 5.5rem);
  color: transparent;
  -webkit-text-stroke: 1.4px var(--text-dim);
}

.hero__role {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 1.6em;
  margin-bottom: 1.7rem;
  font-size: clamp(0.85rem, 2.2vw, 1.02rem);
  color: var(--signal);
}
.hero__role-prefix { color: var(--muted); }
.caret {
  display: inline-block;
  width: 9px; height: 1.05em;
  background: var(--signal);
  animation: blink 1.05s steps(2, start) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero__lede {
  max-width: 56ch;
  color: var(--text-dim);
  font-size: clamp(1rem, 1.4vw, 1.14rem);
}
.hero__lede strong { color: var(--text); font-weight: 600; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2.2rem;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin-top: clamp(3rem, 7vw, 4.5rem);
  border: 1px solid var(--line);
  background: var(--line);
}
.stat {
  /* dt/dd stay in semantic order; column-reverse puts the number on top */
  display: flex;
  flex-direction: column-reverse;
  align-items: flex-start;
  padding: 1.15rem 1.3rem;
  background: var(--bg);
  transition: background 0.35s;
}
.stat:hover { background: var(--bg-elev); }
.stat__value {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--text);
}
.stat__num { font-style: normal; font-variant-numeric: tabular-nums; }
.stat__value sup {
  font-size: 0.45em;
  color: var(--signal);
  vertical-align: super;
}
.stat__label {
  display: block;
  margin-top: 0.55rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Scroll cue */
.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 2rem;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  color: var(--muted);
  font-size: var(--fs-micro);
  letter-spacing: 0.28em;
}
.scroll-cue__line {
  width: 1px; height: 46px;
  background: linear-gradient(180deg, transparent, var(--signal));
  animation: cue 2.4s var(--ease-io) infinite;
  transform-origin: top;
}
@keyframes cue {
  0%, 100% { transform: scaleY(0.35); opacity: 0.35; }
  50%      { transform: scaleY(1);    opacity: 1; }
}
.scroll-cue:hover { color: var(--text); }

/* --------------------------------------------------------------------------
   7. Marquee ticker
   -------------------------------------------------------------------------- */
.marquee {
  position: relative;
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: var(--bg-elev);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: flex;
  width: max-content;
  animation: slide 34s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes slide { to { transform: translateX(-50%); } }

.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.85rem 1.5rem;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  white-space: nowrap;
}
.marquee__item::after {
  content: '';
  width: 5px; height: 5px;
  background: var(--signal);
  transform: rotate(45deg);
}

/* --------------------------------------------------------------------------
   8. About
   -------------------------------------------------------------------------- */
.about {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.about__prose p { color: var(--text-dim); }
.about__prose strong { color: var(--text); font-weight: 600; }

.about__facts {
  margin: 2rem 0 0;
  border-top: 1px solid var(--line);
}
.about__facts li {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.94rem;
}
.about__key {
  flex: 0 0 68px;
  font-size: var(--fs-micro);
  letter-spacing: 0.16em;
  color: var(--signal);
}

/* Skill groups */
.about__skills { margin-top: 2.4rem; }
.skillgroup + .skillgroup { margin-top: 1.5rem; }
.skillgroup__label {
  display: block;
  margin-bottom: 0.7rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}
.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chip {
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  transition: color 0.25s, border-color 0.25s, background 0.25s;
}
.chip:hover {
  color: var(--signal);
  border-color: rgb(var(--signal-rgb) / 0.45);
  background: rgb(var(--signal-rgb) / 0.07);
}

/* Panels: school / clubs / featured project */
.about__panels { display: grid; gap: 1rem; }

.panel {
  position: relative;
  padding: 1.5rem 1.6rem;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--surface), transparent 65%);
  transition: border-color 0.35s, transform 0.35s var(--ease-out);
}
.panel:hover { border-color: rgb(var(--signal-rgb) / 0.35); transform: translateY(-3px); }

.panel__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.panel__badge {
  display: grid;
  place-items: center;
  width: 30px; height: 30px;
  flex: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--signal);
  background: rgb(var(--signal-rgb) / 0.06);
}
.panel__label {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}
.panel__title { font-size: var(--fs-h3); margin-bottom: 0.3rem; }
.panel__meta {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted);
  margin-bottom: 0.9rem;
}
.panel__list li {
  position: relative;
  padding-left: 1.15rem;
  margin-bottom: 0.4rem;
  font-size: 0.94rem;
  color: var(--text-dim);
}
.panel__list li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.62em;
  width: 6px; height: 1px;
  background: var(--signal);
}
.panel__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--signal);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s;
}
.panel__link:hover { border-bottom-color: var(--signal); }

/* Featured variant leans ember */
.panel--featured {
  border-color: rgb(var(--ember-rgb) / 0.28);
  background: linear-gradient(160deg, rgb(var(--ember-rgb) / 0.07), transparent 62%);
}
.panel--featured .panel__badge { color: var(--ember); background: rgb(var(--ember-rgb) / 0.08); }
.panel--featured .panel__list li::before,
.panel--featured .panel__link { color: var(--ember); background-color: transparent; }
.panel--featured .panel__list li::before { background: var(--ember); }
.panel--featured .panel__link:hover { border-bottom-color: var(--ember); }
.panel--featured:hover { border-color: rgb(var(--ember-rgb) / 0.5); }

/* --------------------------------------------------------------------------
   9. Projects
   -------------------------------------------------------------------------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}
.filter {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--line);
  border-radius: 99px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  transition: color 0.25s, border-color 0.25s, background 0.25s;
}
.filter__count { font-size: var(--fs-micro); color: var(--muted); }
.filter:hover { color: var(--text); border-color: var(--text-dim); }
.filter.is-active {
  background: var(--signal);
  border-color: var(--signal);
  color: #08090a;
  font-weight: 600;
}
.filter.is-active .filter__count { color: rgba(8, 9, 10, 0.6); }

.projects {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: 1rem;
}

.card {
  /* Overridden per category below; declared here so the sheen always resolves */
  --accent-rgb: var(--signal-rgb);
  --accent: var(--signal);

  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.6rem;
  border: 1px solid var(--line);
  background: linear-gradient(165deg, var(--surface), transparent 60%);
  overflow: hidden;
  transition: border-color 0.4s, transform 0.4s var(--ease-out),
              background 0.4s, opacity 0.3s var(--ease-out);
}
.card::after { /* diagonal sheen on hover */
  content: '';
  position: absolute;
  inset: -60% -10%;
  background: linear-gradient(105deg, transparent 42%, rgb(var(--accent-rgb) / 0.1) 50%, transparent 58%);
  transform: translateX(-70%);
  transition: transform 0.8s var(--ease-out);
  pointer-events: none;
}
.card:hover::after { transform: translateX(70%); }
.card:hover {
  transform: translateY(-4px);
  border-color: rgb(var(--accent-rgb) / 0.45);
  background: linear-gradient(165deg, rgb(var(--accent-rgb) / 0.06), transparent 62%);
}

.card--software { --accent-rgb: var(--signal-rgb); --accent: var(--signal); }
.card--hardware { --accent-rgb: var(--ember-rgb);  --accent: var(--ember); }

.card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.15rem;
}
.card__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.card__tag::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent);
  transform: rotate(45deg);
}
.card__year {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--muted);
}

.card__title {
  font-size: var(--fs-h3);
  margin-bottom: 0.6rem;
  transition: color 0.3s;
}
.card:hover .card__title { color: var(--accent); }

.card__desc {
  flex: 1;
  font-size: 0.94rem;
  color: var(--text-dim);
  margin-bottom: 1.2rem;
}

.card__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.2rem;
}
.card__stack span {
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--muted);
}

.card__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
}
.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-dim);
  transition: color 0.25s;
}
.card__link::after {
  content: '↗';
  font-size: 0.9em;
  transition: transform 0.3s var(--ease-out);
}
.card__link:hover { color: var(--accent); }
.card__link:hover::after { transform: translate(2px, -2px); }

/* Shown instead of links on work that cannot be made public */
.card__note {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
}
.card__note::before {
  content: '';
  width: 6px; height: 6px;
  border: 1px solid var(--muted);
  border-radius: 50%;
}

/* Filtering transitions */
.card[hidden] { display: none; }
.card.is-filtering { opacity: 0; transform: scale(0.97); }

.projects__empty {
  margin-top: 2rem;
  text-align: center;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   10. Contact
   -------------------------------------------------------------------------- */
.section--contact { padding-bottom: clamp(4rem, 9vw, 7rem); }

.contact {
  display: grid;
  /* One row of tiles, or one column — never a part-filled row with a gap in
     it. Update the count here if you add or remove a contact channel. */
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.contact__item {
  position: relative;
  display: block;
  padding: 1.75rem 1.6rem;
  background: var(--bg);
  transition: background 0.35s, color 0.35s;
}
.contact__item:hover { background: var(--bg-elev); }

.contact__label {
  display: block;
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}
.contact__value {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  word-break: break-word;
}
.contact__value span:last-child {
  color: var(--signal);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.3s, transform 0.35s var(--ease-out);
}
.contact__item:hover .contact__value span:last-child { opacity: 1; transform: translateX(0); }
.contact__hint {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.84rem;
  color: var(--muted);
}

.contact__cta {
  margin-top: 2.75rem;
  text-align: center;
}

/* --------------------------------------------------------------------------
   11. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(8, 9, 10, 0.6);
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.6rem;
  color: var(--muted);
  font-size: var(--fs-micro);
  letter-spacing: 0.1em;
}

/* --------------------------------------------------------------------------
   12. Scroll reveal
   -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity 0.75s var(--ease-out) var(--reveal-delay, 0ms),
    transform 0.75s var(--ease-out) var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   13. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 960px) {
  .about { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  :root { --header-h: 64px; }

  .nav__toggle { display: block; }

  .nav__list {
    position: fixed;
    inset: var(--header-h) 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.6rem var(--gutter) 1.6rem;
    background: rgba(8, 9, 10, 0.97);
    -webkit-backdrop-filter: blur(18px);
            backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-115%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.45s var(--ease-out), opacity 0.3s, visibility 0.45s;
  }
  .nav__list.is-open { transform: translateY(0); opacity: 1; visibility: visible; }

  .nav__link {
    padding: 1rem 0.2rem;
    font-size: 1rem;
    border-bottom: 1px solid var(--line-soft);
  }
  .nav__link::after { left: 0.2rem; right: auto; width: 26px; bottom: 0.75rem; }

  /* Full name is a wide wordmark — tighten it so it clears the controls */
  .brand { font-size: 0.66rem; letter-spacing: 0.08em; }

  .lang { order: 1; }
  .nav  { order: 2; }

  .hero { min-height: 92svh; }
  .hero__title-line--outline { -webkit-text-stroke-width: 1px; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }

  /* Too narrow for a single row of tiles — stack them instead of leaving a hole */
  .contact { grid-template-columns: 1fr; }
  .scroll-cue { display: none; }
  .footer__inner { justify-content: flex-start; }
}

@media (max-width: 420px) {
  .hero__stats { grid-template-columns: 1fr; }
  .btn { width: 100%; justify-content: center; }
  .contact__cta .btn { width: auto; }
}

/* --------------------------------------------------------------------------
   14. Motion & print preferences
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .bg-grain { display: none; }
  .marquee__track { animation: none; }
}

@media print {
  .site-header, .bg-canvas, .bg-veil, .bg-grain, .scroll-cue, .marquee { display: none; }
  body { background: #fff; color: #000; }
}