/* ============================================================
   Amine El Maroufi — Portfolio
   Dark futuristic design system. Cyan / violet duotone on ink.
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  /* palette — OKLCH */
  --bg:        oklch(0.15 0.025 268);
  --bg-deep:   oklch(0.11 0.03 270);
  --surface:   oklch(0.19 0.03 268);
  --surface-2: oklch(0.23 0.035 268);
  --hair:      oklch(0.30 0.03 268 / 0.55);
  --hair-soft: oklch(0.30 0.03 268 / 0.28);

  --ink:       oklch(0.97 0.01 250);
  --ink-dim:   oklch(0.82 0.015 250);
  --muted:     oklch(0.68 0.025 260);
  --faint:     oklch(0.64 0.025 265);

  /* accents — electric cyan + violet duotone */
  --cyan:      oklch(0.82 0.15 200);
  --cyan-bri:  oklch(0.88 0.14 195);
  --violet:    oklch(0.70 0.20 300);
  --magenta:   oklch(0.68 0.22 355);
  --teal:      oklch(0.80 0.13 180);

  --grad:      linear-gradient(110deg, var(--cyan), var(--violet));
  --grad-soft: linear-gradient(110deg, oklch(0.82 0.15 200 / 0.18), oklch(0.70 0.20 300 / 0.18));

  /* type */
  --font-display: "Clash Display", "Sora", system-ui, sans-serif;
  --font-body:    "Satoshi", "Sora", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, monospace;

  /* shape */
  --r-sm: 10px;
  --r:    18px;
  --r-lg: 28px;
  --r-xl: 38px;

  /* layout */
  --maxw: 1180px;
  --gut:  clamp(20px, 5vw, 48px);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

  /* z-index scale */
  --z-ambient: 0;
  --z-base: 1;
  --z-nav: 100;
  --z-spot: 2;
  --z-overlay: 200;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink-dim);
  line-height: 1.6;
  font-size: clamp(15px, 0.92vw + 12px, 17px);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
::selection { background: oklch(0.70 0.20 300 / 0.35); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Ambient background ---------- */
.ambient {
  position: fixed;
  inset: 0;
  z-index: var(--z-ambient);
  pointer-events: none;
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 50% -10%, oklch(0.22 0.05 280 / 0.6), transparent 60%),
    var(--bg-deep);
}
.ambient__grid {
  position: absolute;
  inset: -2px;
  background-image:
    linear-gradient(oklch(0.6 0.06 270 / 0.05) 1px, transparent 1px),
    linear-gradient(90deg, oklch(0.6 0.06 270 / 0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(100% 70% at 50% 30%, #000 30%, transparent 85%);
  -webkit-mask-image: radial-gradient(100% 70% at 50% 30%, #000 30%, transparent 85%);
}
.ambient__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  will-change: transform;
}
.ambient__blob--a {
  width: 46vw; height: 46vw; max-width: 720px; max-height: 720px;
  background: radial-gradient(circle, oklch(0.70 0.20 300 / 0.55), transparent 65%);
  top: -10%; left: -8%;
  animation: drift-a 26s var(--ease) infinite alternate;
}
.ambient__blob--b {
  width: 40vw; height: 40vw; max-width: 620px; max-height: 620px;
  background: radial-gradient(circle, oklch(0.82 0.15 200 / 0.45), transparent 65%);
  top: 30%; right: -12%;
  animation: drift-b 32s var(--ease) infinite alternate;
}
.ambient__blob--c {
  width: 36vw; height: 36vw; max-width: 560px; max-height: 560px;
  background: radial-gradient(circle, oklch(0.68 0.22 355 / 0.32), transparent 65%);
  bottom: -10%; left: 25%;
  animation: drift-c 38s var(--ease) infinite alternate;
}
@keyframes drift-a { to { transform: translate(8vw, 6vh) scale(1.12); } }
@keyframes drift-b { to { transform: translate(-7vw, 8vh) scale(1.08); } }
@keyframes drift-c { to { transform: translate(5vw, -7vh) scale(1.15); } }

.ambient__noise {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* mouse spotlight */
.spotlight {
  position: fixed;
  z-index: var(--z-spot);
  pointer-events: none;
  width: 600px; height: 600px;
  left: 0; top: 0;
  border-radius: 50%;
  background: radial-gradient(circle, oklch(0.82 0.15 200 / 0.07), transparent 60%);
  transform: translate(-50%, -50%);
  transition: opacity 0.4s var(--ease);
  will-change: transform;
}

/* ---------- Layout helpers ---------- */
main { position: relative; z-index: var(--z-base); }
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(48px, 6.5vw, 84px) var(--gut);
  position: relative;
}
.section__head { margin-bottom: clamp(28px, 3.5vw, 44px); }
.section__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cyan);
  letter-spacing: 0.02em;
  margin-bottom: 0.7rem;
  opacity: 0.85;
}
.section__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-wrap: balance;
}

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px var(--gut);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), padding 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: oklch(0.13 0.028 268 / 0.72);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--hair-soft);
  padding-top: 12px;
  padding-bottom: 12px;
}
.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.12rem;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.nav__brand-tags {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--cyan);
  background: oklch(0.82 0.15 200 / 0.12);
  border: 1px solid oklch(0.82 0.15 200 / 0.25);
  padding: 3px 7px;
  border-radius: 7px;
}
.nav__brand-dot { color: var(--violet); }

.nav__links {
  display: flex;
  gap: 6px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.nav__links a {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--muted);
  padding: 8px 14px;
  border-radius: 999px;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}
.nav__links a:hover,
.nav__links a:focus-visible {
  color: var(--ink);
  background: oklch(0.30 0.03 268 / 0.5);
}

.nav__tools {
  display: flex;
  align-items: center;
  gap: 14px;
}
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--faint);
  padding: 6px 10px;
  border: 1px solid var(--hair-soft);
  border-radius: 999px;
  transition: border-color 0.25s var(--ease);
}
.lang-toggle:hover { border-color: var(--hair); }
.lang-toggle__opt { transition: color 0.25s var(--ease); cursor: pointer; }
.lang-toggle__opt.is-active { color: var(--cyan); }
.lang-toggle__sep { color: var(--faint); opacity: 0.5; }

.nav__cta {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--ink);
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--hair);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.nav__cta:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: 0 8px 30px oklch(0.82 0.15 200 / 0.18);
}

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav__burger span {
  width: 22px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav__burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 13px 24px;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
  white-space: nowrap;
}
.btn--lg { padding: 16px 30px; font-size: 1.02rem; }
.btn--primary {
  color: oklch(0.14 0.03 270);
  background: var(--grad);
  background-size: 160% 160%;
  font-weight: 700;
  box-shadow: 0 10px 40px oklch(0.70 0.20 300 / 0.32);
}
.btn--primary:hover {
  transform: translateY(-3px);
  background-position: 100% 0;
  box-shadow: 0 16px 50px oklch(0.70 0.20 300 / 0.42);
}
.btn--primary svg { color: oklch(0.14 0.03 270); }
.btn--ghost {
  color: var(--ink);
  background: oklch(0.20 0.03 268 / 0.6);
  border: 1px solid var(--hair);
}
.btn--ghost:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
  box-shadow: 0 12px 36px oklch(0.82 0.15 200 / 0.16);
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(110px, 16vh, 150px) var(--gut) 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}
.status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-dim);
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid oklch(0.65 0.16 150 / 0.3);
  background: oklch(0.65 0.16 150 / 0.08);
  width: fit-content;
  margin-bottom: 26px;
}
.status__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: oklch(0.78 0.18 150);
  box-shadow: 0 0 0 0 oklch(0.78 0.18 150 / 0.7);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 oklch(0.78 0.18 150 / 0.6); }
  70% { box-shadow: 0 0 0 10px oklch(0.78 0.18 150 / 0); }
  100% { box-shadow: 0 0 0 0 oklch(0.78 0.18 150 / 0); }
}
.hero__tag {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--violet);
  margin-bottom: 18px;
}
.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.8rem, 8.5vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.045em;
  color: var(--ink);
  margin-bottom: 22px;
}
.reveal-line { display: block; overflow: hidden; }
.reveal-line > span {
  display: block;
  transform: translateY(110%);
  transition: transform 0.9s var(--ease-out);
}
.hero.is-in .reveal-line:nth-child(1) > span { transform: none; transition-delay: 0.15s; }
.hero.is-in .reveal-line:nth-child(2) > span { transform: none; transition-delay: 0.28s; }
.hero__title .reveal-line:nth-child(2) > span {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  width: fit-content;
}
.hero__role {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.1rem, 2.2vw, 1.55rem);
  color: var(--ink-dim);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 22px;
  max-width: 30ch;
  text-wrap: balance;
}
.hero__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
}
.hero__tech li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-dim);
  padding: 5px 12px;
  border-radius: 7px;
  background: oklch(0.22 0.03 268 / 0.6);
  border: 1px solid var(--hair-soft);
}
.hero__contact {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-bottom: 30px;
}
.hero__contact-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--muted);
  transition: color 0.25s var(--ease);
  width: fit-content;
}
.hero__contact-item svg { color: var(--cyan); flex: none; }
.hero__contact-item:hover { color: var(--ink); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* hero visual */
.hero__visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  opacity: 0;
  transform: scale(0.92);
  filter: blur(14px);
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out), filter 1s var(--ease-out);
}
.hero.is-in .hero__visual { opacity: 1; transform: none; filter: none; transition-delay: 0.25s; }

.portrait-stage {
  position: relative;
  perspective: 1100px;
  padding: 14px;
}
.portrait-glow {
  position: absolute;
  inset: -8%;
  border-radius: 50%;
  background: conic-gradient(from 0deg, oklch(0.82 0.15 200 / 0.5), oklch(0.70 0.20 300 / 0.5), oklch(0.68 0.22 355 / 0.4), oklch(0.82 0.15 200 / 0.5));
  filter: blur(55px);
  opacity: 0.55;
  animation: hue-spin 16s linear infinite;
  z-index: 0;
}
@keyframes hue-spin { to { transform: rotate(360deg); } }

.portrait {
  position: relative;
  width: clamp(220px, 26vw, 340px);
  aspect-ratio: 1;
  transform-style: preserve-3d;
  transition: transform 0.4s var(--ease-out);
  animation: float 6s ease-in-out infinite;
  z-index: 1;
}
@keyframes float {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, -12px, 0); }
}
.portrait.tilting { animation: none; }

.portrait__frame {
  position: absolute;
  inset: 16px;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid var(--hair);
  box-shadow:
    0 30px 80px oklch(0.70 0.20 300 / 0.32),
    inset 0 0 0 1px oklch(0.82 0.15 200 / 0.18);
  background: var(--surface);
  transform: translateZ(0);
}
.portrait__frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: contrast(1.05) saturate(1.04);
}

/* moving sheen across the photo */
.portrait__sheen {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 38%, oklch(0.97 0.01 250 / 0.28) 50%, transparent 62%);
  transform: translateX(-120%);
  animation: sheen 5.5s ease-in-out infinite;
  animation-delay: 1.2s;
  mix-blend-mode: screen;
}
@keyframes sheen {
  0%, 70% { transform: translateX(-120%); }
  85%, 100% { transform: translateX(120%); }
}

/* single clean rotating arc ring */
.portrait__arc {
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0deg, var(--cyan) 50deg, transparent 120deg, transparent 250deg, var(--violet) 300deg, transparent 360deg);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2px));
  animation: arc-spin 10s linear infinite;
  opacity: 0.85;
}
@keyframes arc-spin { to { transform: rotate(360deg); } }

.portrait__badge {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: var(--font-mono);
  padding: 9px 15px;
  border-radius: 14px;
  background: oklch(0.15 0.028 268 / 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--hair);
  box-shadow: 0 12px 36px oklch(0 0 0 / 0.45);
  transform: translateZ(60px);
  z-index: 2;
}
.portrait__badge strong {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.portrait__badge span { font-size: 0.62rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.portrait__badge--exp { top: 4%; right: -14px; }
.portrait__badge--status {
  bottom: 6%; left: -18px;
  flex-direction: row;
  gap: 7px;
  font-size: 0.72rem;
  color: var(--ink-dim);
  text-transform: none;
  letter-spacing: 0;
}

/* qr */
.qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.qr__inner {
  display: block;
  padding: 9px;
  border-radius: var(--r-sm);
  background: oklch(0.96 0.01 250);
  border: 1px solid var(--cyan);
  box-shadow: 0 0 0 4px oklch(0.82 0.15 200 / 0.12), 0 14px 40px oklch(0.70 0.20 300 / 0.25);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.qr__inner img { width: 92px; height: 92px; border-radius: 4px; }
.qr:hover .qr__inner { transform: scale(1.05); box-shadow: 0 0 0 6px oklch(0.82 0.15 200 / 0.16), 0 18px 50px oklch(0.70 0.20 300 / 0.32); }
.qr__label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.qr__link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--cyan);
  font-weight: 500;
  transition: color 0.25s var(--ease);
}
.qr__link:hover { color: var(--cyan-bri); }

/* scroll cue */
.hero__scroll {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--faint);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}
.hero__scroll-line {
  width: 1px; height: 46px;
  background: linear-gradient(var(--cyan), transparent);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: "";
  position: absolute;
  top: -50%; left: 0;
  width: 100%; height: 50%;
  background: var(--cyan-bri);
  animation: scrolldot 2s var(--ease) infinite;
}
@keyframes scrolldot { 0% { top: -50%; } 100% { top: 100%; } }

/* ---------- Marquee ---------- */
.marquee {
  position: relative;
  z-index: var(--z-base);
  overflow: hidden;
  border-top: 1px solid var(--hair-soft);
  border-bottom: 1px solid var(--hair-soft);
  background: oklch(0.13 0.028 268 / 0.5);
  padding: 16px 0;
  -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;
  gap: 28px;
  width: max-content;
  animation: marquee 34s linear infinite;
}
.marquee__track span {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--muted);
  white-space: nowrap;
}
.marquee__track span:nth-child(even) { color: var(--violet); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- About ---------- */
.about { max-width: 68ch; }
.about__lead {
  font-size: clamp(1.05rem, 1.6vw, 1.32rem);
  line-height: 1.65;
  color: var(--ink-dim);
  margin-bottom: 20px;
  text-wrap: pretty;
}
.about__note {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--muted);
  padding-left: 16px;
  border-left: 2px solid var(--violet);
}

/* stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: clamp(50px, 7vw, 80px);
}
.stat {
  padding: clamp(22px, 3vw, 32px);
  border-radius: var(--r);
  background: oklch(0.19 0.03 268 / 0.55);
  border: 1px solid var(--hair-soft);
  position: relative;
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
}
.stat::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--grad-soft);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.stat:hover { transform: translateY(-5px); border-color: var(--cyan); }
.stat:hover::before { opacity: 1; }
.stat__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  line-height: 1;
  letter-spacing: -0.03em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  position: relative;
}
.stat__label {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  position: relative;
}

/* ---------- Timeline / Work ---------- */
.timeline { display: flex; flex-direction: column; gap: 20px; }
.job {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 22px;
  padding: clamp(24px, 3vw, 36px);
  border-radius: var(--r-lg);
  background: oklch(0.18 0.03 268 / 0.45);
  border: 1px solid var(--hair-soft);
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease), background 0.4s var(--ease);
}
.job:hover {
  border-color: var(--hair);
  background: oklch(0.20 0.033 268 / 0.6);
  transform: translateX(4px);
}
.job__rail { position: relative; display: flex; justify-content: center; }
.job__rail::before {
  content: "";
  position: absolute;
  top: 8px; bottom: -36px;
  width: 1px;
  background: linear-gradient(var(--cyan), transparent);
  opacity: 0.4;
}
.job:last-child .job__rail::before { display: none; }
.job__node {
  position: relative;
  z-index: 1;
  width: 14px; height: 14px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px oklch(0.82 0.15 200 / 0.12);
}
.job__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}
.job__role {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.2rem, 2.2vw, 1.6rem);
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.job__sub {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
  margin-top: 4px;
}
.job__period {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--muted);
  padding: 5px 12px;
  border-radius: 999px;
  background: oklch(0.24 0.035 268 / 0.7);
  border: 1px solid var(--hair-soft);
  white-space: nowrap;
}
.job__company {
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--ink-dim);
  margin: 8px 0 4px;
  font-size: 0.98rem;
}
.job__loc {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--faint);
  margin-left: 6px;
}
.job__context {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 10px 0 16px;
  max-width: 75ch;
}
.job__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-bottom: 18px;
}
.job__list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.9rem;
  color: var(--ink-dim);
  line-height: 1.55;
}
.job__list li::before {
  content: "▸";
  position: absolute;
  left: 0; top: 0;
  color: var(--violet);
  font-size: 0.8rem;
}
.job__stack {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--muted);
  line-height: 1.7;
  padding-top: 16px;
  border-top: 1px solid var(--hair-soft);
}
.job__stack-label { color: var(--cyan); margin-right: 6px; }

/* ---------- Skills ---------- */
.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.skill-group {
  padding: 24px;
  border-radius: var(--r);
  background: oklch(0.18 0.03 268 / 0.45);
  border: 1px solid var(--hair-soft);
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.skill-group:hover { border-color: var(--hair); transform: translateY(-4px); }
.skill-group--ai { border-color: oklch(0.70 0.20 300 / 0.3); background: oklch(0.22 0.05 300 / 0.18); }
.skill-group--ai:hover { border-color: var(--violet); }
.skill-group__title {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.skill-group--ai .skill-group__title { color: var(--violet); }
.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chips li {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--ink-dim);
  padding: 5px 11px;
  border-radius: 7px;
  background: oklch(0.24 0.035 268 / 0.6);
  border: 1px solid var(--hair-soft);
  transition: transform 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.chips li:hover {
  transform: translateY(-2px);
  color: var(--ink);
  border-color: var(--cyan);
}

/* ---------- Education ---------- */
.edu { display: flex; flex-direction: column; gap: 4px; margin-bottom: clamp(50px, 7vw, 80px); }
.edu__item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--hair-soft);
  align-items: baseline;
}
.edu__item:last-child { border-bottom: 1px solid var(--hair-soft); }
.edu__year {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
}
.edu__degree {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.05rem, 1.8vw, 1.3rem);
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.25;
}
.edu__school {
  font-size: 0.88rem;
  color: var(--muted);
  margin-top: 6px;
}

/* languages + interests */
.more {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.more__col {
  padding: 28px;
  border-radius: var(--r);
  background: oklch(0.18 0.03 268 / 0.45);
  border: 1px solid var(--hair-soft);
}
.more__title {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--violet);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.lang-list { display: flex; flex-direction: column; gap: 10px; }
.lang-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--ink-dim);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--hair-soft);
}
.lang-list li:last-child { border-bottom: none; padding-bottom: 0; }
.lang-list em {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.78rem;
  color: var(--cyan);
}

/* ---------- Contact ---------- */
.section--contact { padding-bottom: clamp(70px, 9vw, 110px); }
.contact {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(40px, 6vw, 70px);
  align-items: center;
}
.contact__lead { max-width: 40ch; }
.contact__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--ink);
  margin: 14px 0 18px;
  text-wrap: balance;
}
.contact__sub {
  color: var(--muted);
  margin-bottom: 28px;
  font-size: 1rem;
}
.contact__card {
  padding: clamp(26px, 3vw, 36px);
  border-radius: var(--r-lg);
  background: oklch(0.18 0.03 268 / 0.55);
  border: 1px solid var(--hair-soft);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.contact__rows { display: flex; flex-direction: column; }
.contact__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--hair-soft);
  transition: padding 0.25s var(--ease);
}
.contact__row:last-of-type { border-bottom: 1px solid var(--hair-soft); }
.contact__row:hover { padding-left: 8px; }
.contact__row-key {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.contact__row-val {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--ink-dim);
  text-align: right;
}
a.contact__row:hover .contact__row-val { color: var(--cyan); }

.contact__qr {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--hair-soft);
}
.contact__qr-box {
  display: block;
  padding: 8px;
  border-radius: var(--r-sm);
  background: oklch(0.96 0.01 250);
  border: 1px solid var(--cyan);
  flex: none;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.contact__qr-box:hover { transform: scale(1.05); box-shadow: 0 0 0 5px oklch(0.82 0.15 200 / 0.14); }
.contact__qr-box img { width: 96px; height: 96px; border-radius: 4px; }
.contact__qr-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}
.contact__qr-link {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--cyan);
  font-weight: 500;
}

/* ---------- Footer ---------- */
.footer {
  position: relative;
  z-index: var(--z-base);
  border-top: 1px solid var(--hair-soft);
  padding: 40px var(--gut);
}
.footer__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--faint);
}
.footer__sign { color: var(--violet); }
.footer__top {
  position: fixed;
  right: clamp(16px, 3vw, 34px);
  bottom: clamp(16px, 3vw, 34px);
  width: 46px; height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--surface);
  border: 1px solid var(--hair);
  color: var(--ink);
  font-size: 1.1rem;
  z-index: var(--z-nav);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), border-color 0.3s var(--ease);
}
.footer__top.is-visible { opacity: 1; pointer-events: auto; transform: none; }
.footer__top:hover { border-color: var(--cyan); color: var(--cyan); }

/* ---------- Reveal animation (base) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal.is-in,
.is-in .reveal { opacity: 1; transform: none; }
[data-delay="1"] { transition-delay: 0.08s; }
[data-delay="2"] { transition-delay: 0.16s; }
[data-delay="3"] { transition-delay: 0.24s; }
[data-delay="4"] { transition-delay: 0.32s; }
[data-delay="5"] { transition-delay: 0.4s; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; gap: 50px; }
  .hero__visual { order: -1; }
  .portrait { width: clamp(180px, 40vw, 280px); }
  .contact { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .nav__links {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(82vw, 340px);
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    padding: 40px;
    background: oklch(0.13 0.03 268 / 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--hair-soft);
    transform: translateX(100%);
    transition: transform 0.45s var(--ease);
  }
  .nav__links.is-open { transform: none; }
  .nav__links a { font-size: 1.1rem; padding: 12px 16px; }
  .nav__cta { display: none; }
  .nav__burger { display: flex; }

  .stats { grid-template-columns: repeat(2, 1fr); }
  .job { grid-template-columns: 28px 1fr; gap: 14px; padding: 22px; }
  .job__top { flex-direction: column; }
  .edu__item { grid-template-columns: 1fr; gap: 6px; }
  .edu__year { margin-bottom: 2px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .reveal-line > span { transform: none; }
  .ambient__blob, .marquee__track, .portrait, .portrait-glow, .portrait__arc, .portrait__sheen { animation: none !important; }
}