/* =============================================================
   Julian Glueck — Portfolio
   Design system: precision-instrument aesthetic for a
   cybersecurity + software identity. Apple/Stripe/Linear lineage.
   Type:  Space Grotesk (display) · Inter (body) · JetBrains Mono (data)
   ============================================================= */

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

img {
  display: block;
  max-width: 100%;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

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

ul,
ol {
  list-style: none;
}

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

/* ---------- Tokens ---------- */
:root {
  /* Light (default) */
  --bg: #fbfbfd;
  --bg-2: #f4f5f8;
  --surface: #ffffff;
  --surface-2: #f6f8fb;
  --border: rgba(12, 17, 29, 0.09);
  --border-strong: rgba(12, 17, 29, 0.16);
  --text: #0b1120;
  --text-2: #555f70;
  --text-3: #8b94a3;
  --accent: #1f5dff;
  --accent-2: #3a72ff;
  --accent-ink: #ffffff;
  --accent-soft: rgba(31, 93, 255, 0.1);
  --glow-a: rgba(31, 93, 255, 0.16);
  --glow-b: rgba(120, 92, 255, 0.12);
  --grid-line: rgba(12, 17, 29, 0.04);
  --shadow-sm: 0 1px 2px rgba(12, 17, 29, 0.06), 0 1px 1px rgba(12, 17, 29, 0.04);
  --shadow-md: 0 14px 40px -18px rgba(12, 17, 29, 0.2);
  --shadow-lg: 0 30px 70px -28px rgba(12, 17, 29, 0.26);

  /* Type */
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", monospace;

  /* Spacing (8pt) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-6: 3rem;
  --space-8: 4rem;
  --space-section: clamp(5.5rem, 11vw, 8.5rem);

  /* Radius */
  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 26px;
  --r-pill: 999px;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);

  --container: 1140px;
}

[data-theme="dark"] {
  --bg: #06080d;
  --bg-2: #0a0e16;
  --surface: #0e1320;
  --surface-2: #141a28;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #f2f5fa;
  --text-2: #99a3b4;
  --text-3: #69727f;
  --accent: #5e8eff;
  --accent-2: #80a4ff;
  --accent-ink: #06080d;
  --accent-soft: rgba(94, 142, 255, 0.14);
  --glow-a: rgba(94, 142, 255, 0.22);
  --glow-b: rgba(126, 92, 255, 0.16);
  --grid-line: rgba(255, 255, 255, 0.035);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 22px 48px -22px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 36px 80px -30px rgba(0, 0, 0, 0.8);
}

/* No-JS fallback: respect system preference until JS sets data-theme */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #06080d;
    --bg-2: #0a0e16;
    --surface: #0e1320;
    --surface-2: #141a28;
    --border: rgba(255, 255, 255, 0.09);
    --border-strong: rgba(255, 255, 255, 0.16);
    --text: #f2f5fa;
    --text-2: #99a3b4;
    --text-3: #69727f;
    --accent: #5e8eff;
    --accent-2: #80a4ff;
    --accent-ink: #06080d;
    --accent-soft: rgba(94, 142, 255, 0.14);
    --glow-a: rgba(94, 142, 255, 0.22);
    --glow-b: rgba(126, 92, 255, 0.16);
    --grid-line: rgba(255, 255, 255, 0.035);
  }
}

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 1rem;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background 0.5s var(--ease-soft), color 0.5s var(--ease-soft);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
}

.sprite {
  position: absolute;
}

/* ---------- Icons ---------- */
.ico {
  width: 22px;
  height: 22px;
  display: inline-block;
  flex: none;
}
.ico--sm {
  width: 18px;
  height: 18px;
}
.ico--xs {
  width: 14px;
  height: 14px;
}

/* ---------- Ambient background ---------- */
.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.bg__grid {
  position: absolute;
  inset: -2px;
  background-image: linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 0%, transparent 75%);
}

.bg__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.9;
}
.bg__glow--a {
  width: 50vw;
  height: 50vw;
  max-width: 720px;
  max-height: 720px;
  top: -16vw;
  left: 50%;
  transform: translateX(-55%);
  background: radial-gradient(circle, var(--glow-a), transparent 68%);
  animation: drift-a 22s var(--ease-soft) infinite alternate;
}
.bg__glow--b {
  width: 38vw;
  height: 38vw;
  max-width: 560px;
  max-height: 560px;
  top: 8vw;
  right: -8vw;
  background: radial-gradient(circle, var(--glow-b), transparent 70%);
  animation: drift-b 26s var(--ease-soft) infinite alternate;
}

@keyframes drift-a {
  to {
    transform: translateX(-45%) translateY(40px);
  }
}
@keyframes drift-b {
  to {
    transform: translateY(60px) translateX(-30px);
  }
}

/* =============================================================
   Navigation — floating glass
   ============================================================= */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: clamp(0.75rem, 2vw, 1.25rem) 0;
  transition: padding 0.4s var(--ease);
}

.nav__inner {
  width: min(var(--container), calc(100% - clamp(1.25rem, 5vw, 2.5rem)));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0.55rem 0.7rem 0.55rem 1.1rem;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  background: transparent;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease),
    box-shadow 0.4s var(--ease), backdrop-filter 0.4s var(--ease);
}

.nav.is-scrolled .nav__inner {
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  border-color: var(--border);
  box-shadow: var(--shadow-md);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.18rem;
  letter-spacing: -0.02em;
}
.nav__mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.nav__dot {
  color: var(--accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-inline: auto;
}
.nav__link {
  position: relative;
  padding: 0.5rem 0.85rem;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--r-pill);
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}
.nav__link:hover {
  color: var(--text);
}
.nav__link.is-active {
  color: var(--text);
}
.nav__link.is-active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.nav__controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Language dropdown */
.lang {
  position: relative;
}
.lang__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  height: 38px;
  padding: 0 0.7rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease),
    background 0.25s var(--ease);
}
.lang__btn:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--surface-2);
}
.lang__btn .ico {
  width: 16px;
  height: 16px;
}
.lang__caret {
  transition: transform 0.3s var(--ease);
}
.lang.is-open .lang__caret {
  transform: rotate(180deg);
}

.lang__menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 188px;
  padding: 0.4rem;
  border-radius: var(--r-md);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px) scale(0.98);
  transform-origin: top right;
  transition: opacity 0.22s var(--ease), transform 0.22s var(--ease),
    visibility 0.22s;
}
.lang.is-open .lang__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.lang__menu li button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 0.7rem;
  border-radius: 11px;
  font-size: 0.9rem;
  color: var(--text-2);
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.lang__menu li button:hover {
  background: var(--surface-2);
  color: var(--text);
}
.lang__menu li[aria-selected="true"] button {
  color: var(--accent);
}
.lang__native {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-3);
}
.lang__menu li[aria-selected="true"] .lang__native {
  color: var(--accent);
}

/* Theme toggle */
.theme {
  width: 38px;
  height: 38px;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  color: var(--text-2);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease),
    background 0.25s var(--ease);
  overflow: hidden;
}
.theme:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--surface-2);
}
.theme__track {
  position: relative;
  width: 20px;
  height: 20px;
}
.theme__sun,
.theme__moon {
  position: absolute;
  inset: 0;
  width: 20px;
  height: 20px;
  transition: transform 0.5s var(--ease), opacity 0.4s var(--ease);
}
/* dark theme shows moon */
[data-theme="dark"] .theme__sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0.4);
}
[data-theme="dark"] .theme__moon {
  opacity: 1;
  transform: rotate(0) scale(1);
}
/* light theme shows sun */
[data-theme="light"] .theme__sun {
  opacity: 1;
  transform: rotate(0) scale(1);
}
[data-theme="light"] .theme__moon {
  opacity: 0;
  transform: rotate(90deg) scale(0.4);
}

/* Burger (mobile) */
.burger {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.burger span {
  width: 16px;
  height: 1.6px;
  border-radius: 2px;
  background: var(--text);
  transition: transform 0.35s var(--ease), opacity 0.25s var(--ease);
}
.burger.is-open span:first-child {
  transform: translateY(3.3px) rotate(45deg);
}
.burger.is-open span:last-child {
  transform: translateY(-3.3px) rotate(-45deg);
}

/* =============================================================
   Shared bits
   ============================================================= */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--text-2);
}

.label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}
.label__tick {
  width: 22px;
  height: 1.5px;
  background: var(--accent);
  border-radius: 2px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-3);
  flex: none;
}
.dot--live {
  background: #1fc77d;
  box-shadow: 0 0 0 0 rgba(31, 199, 125, 0.5);
  animation: pulse 2.4s var(--ease-soft) infinite;
}
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(31, 199, 125, 0.45);
  }
  70% {
    box-shadow: 0 0 0 7px rgba(31, 199, 125, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(31, 199, 125, 0);
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  height: 50px;
  padding: 0 1.5rem;
  border-radius: var(--r-pill);
  font-weight: 500;
  font-size: 0.98rem;
  letter-spacing: -0.01em;
  transition: transform 0.25s var(--ease), background 0.3s var(--ease),
    box-shadow 0.3s var(--ease), border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.btn:active {
  transform: scale(0.97);
}
.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 8px 22px -8px var(--accent);
}
.btn--primary:hover {
  background: var(--accent-2);
  box-shadow: 0 12px 30px -8px var(--accent);
  transform: translateY(-2px);
}
.btn--primary .ico {
  transition: transform 0.3s var(--ease);
}
.btn--primary:hover .ico {
  transform: translateX(3px);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* Icon buttons */
.icon-btn {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  color: var(--text-2);
  transition: transform 0.25s var(--ease), color 0.25s var(--ease),
    border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.icon-btn:hover {
  color: var(--text);
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-2px);
}
.icon-btn--sm {
  width: 38px;
  height: 38px;
}

/* Section scaffolding */
.section {
  padding-block: var(--space-section);
}
.section__head {
  max-width: 640px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 4.2vw, 3rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
}
.section__title--left {
  text-align: left;
}
.section__desc {
  margin-top: var(--space-3);
  font-size: 1.1rem;
  color: var(--text-2);
  max-width: 52ch;
}

/* =============================================================
   Hero
   ============================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 7rem;
  padding-bottom: 5rem;
}
.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 9vw, 6.5rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
  margin-top: var(--space-3);
}
.hero__sub {
  margin-top: var(--space-3);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.4rem, 3.4vw, 2.4rem);
  letter-spacing: -0.02em;
  color: var(--text-2);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5ch;
}
.rotator {
  position: relative;
  display: inline-block;
  color: var(--accent);
  min-height: 1em;
}
.rotator__word {
  display: inline-block;
  animation: rot-in 0.6s var(--ease) both;
}
.rotator__word.is-out {
  animation: rot-out 0.45s var(--ease) forwards;
}
@keyframes rot-in {
  from {
    opacity: 0;
    transform: translateY(0.5em);
    filter: blur(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}
@keyframes rot-out {
  to {
    opacity: 0;
    transform: translateY(-0.5em);
    filter: blur(6px);
  }
}

.hero__lede {
  margin-top: var(--space-4);
  max-width: 56ch;
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--text-2);
  line-height: 1.7;
}
.hero__actions {
  margin-top: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}
.hero__social {
  margin-top: var(--space-4);
  display: flex;
  gap: 0.6rem;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--r-pill);
  display: grid;
  place-items: start center;
  padding-top: 7px;
}
.hero__scroll-line {
  width: 3px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
  animation: scroll-cue 1.8s var(--ease-soft) infinite;
}
@keyframes scroll-cue {
  0% {
    opacity: 0;
    transform: translateY(0);
  }
  40% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateY(13px);
  }
}

/* =============================================================
   Focus cards
   ============================================================= */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
.card {
  position: relative;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease),
    box-shadow 0.4s var(--ease);
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(120% 100% at 0% 0%, var(--accent-soft), transparent 55%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  box-shadow: var(--shadow-lg);
}
.card:hover::before {
  opacity: 1;
}
.card__icon {
  position: relative;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 13px;
  margin-bottom: var(--space-3);
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
}
.card__title {
  position: relative;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.6rem;
}
.card__text {
  position: relative;
  color: var(--text-2);
  font-size: 0.98rem;
}

/* =============================================================
   Work / projects
   ============================================================= */
.work {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
.project {
  display: flex;
  flex-direction: column;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  min-height: 250px;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease),
    box-shadow 0.4s var(--ease);
}
.project:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  box-shadow: var(--shadow-lg);
}
.project__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: var(--space-4);
}
.project__meta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
}
.project__sep {
  opacity: 0.5;
}
.project__status--live {
  color: #1fc77d;
}
.project__links {
  display: flex;
  gap: 0.4rem;
}
.project__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.5rem, 2.5vw, 1.9rem);
  letter-spacing: -0.025em;
  margin-bottom: 0.65rem;
}
.project__text {
  color: var(--text-2);
  font-size: 0.98rem;
  margin-bottom: var(--space-3);
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
}
.tags li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--text-2);
  padding: 0.32rem 0.7rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  background: var(--surface-2);
}

/* Ghost card */
.project--ghost {
  justify-content: center;
  align-items: flex-start;
  background: transparent;
  border-style: dashed;
}
.project--ghost:hover {
  border-color: var(--accent);
}
.project__ghostlink {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--accent);
}
.project--ghost:hover .project__ghostlink .ico {
  transform: translate(2px, -2px);
  transition: transform 0.3s var(--ease);
}

/* =============================================================
   Résumé
   ============================================================= */
.resume {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
}
.resume__heading {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: var(--space-4);
}
.resume__heading--gap {
  margin-top: var(--space-6);
}

.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.timeline__item {
  position: relative;
  padding-left: 1.75rem;
}
.timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.timeline__item::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1.4rem;
  bottom: -1.4rem;
  width: 1.5px;
  background: linear-gradient(var(--border-strong), transparent);
}
.timeline__item:last-child::after {
  display: none;
}
.timeline__year {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--accent);
}
.timeline__role {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: -0.015em;
  margin-top: 0.3rem;
}
.timeline__org {
  font-size: 0.92rem;
  color: var(--text-2);
  margin-top: 0.2rem;
}
.timeline__desc {
  font-size: 0.95rem;
  color: var(--text-2);
  margin-top: 0.5rem;
}

.skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}
.skill {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.01em;
  color: var(--text);
  padding: 0.55rem 1rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease),
    color 0.25s var(--ease);
}
.skill:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  color: var(--accent);
}

/* =============================================================
   About
   ============================================================= */
.about {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
.about__media {
  position: sticky;
  top: 7rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.avatar {
  position: relative;
  aspect-ratio: 1;
  width: 100%;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: linear-gradient(160deg, var(--surface), var(--surface-2));
  box-shadow: var(--shadow-md);
  display: grid;
  place-items: center;
}
.avatar img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.avatar__mono {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 8vw, 5rem);
  letter-spacing: -0.04em;
  color: var(--border-strong);
}
.avatar.no-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(80% 80% at 30% 20%, var(--accent-soft), transparent 60%);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  align-self: flex-start;
  padding: 0.55rem 1rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.88rem;
  color: var(--text);
}

.about__bio {
  margin-top: var(--space-4);
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  color: var(--text-2);
  line-height: 1.75;
  max-width: 54ch;
}

.facts {
  margin-top: var(--space-6);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
}
.fact {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
}
.fact:nth-child(odd) {
  padding-right: var(--space-3);
}
.fact:nth-child(even) {
  padding-left: var(--space-3);
  border-left: 1px solid var(--border);
}
.fact dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
}
.fact dd {
  font-size: 1rem;
  color: var(--text);
}
.fact dd a {
  color: var(--accent);
  transition: opacity 0.2s var(--ease);
}
.fact dd a:hover {
  opacity: 0.75;
}

/* =============================================================
   Contact
   ============================================================= */
.section--contact {
  position: relative;
}
.contact {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.contact .label {
  justify-content: center;
}
.contact__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  max-width: 16ch;
}
.contact__desc {
  margin-top: var(--space-3);
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--text-2);
  max-width: 50ch;
}
.contact__actions {
  margin-top: var(--space-6);
}
.email-copy {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  height: 56px;
  padding: 0 0.6rem 0 1.4rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 500;
  transition: transform 0.25s var(--ease), border-color 0.3s var(--ease),
    box-shadow 0.3s var(--ease);
}
.email-copy:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.email-copy__icon {
  color: var(--accent);
}
.email-copy__text {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  letter-spacing: -0.01em;
}
.email-copy__hint {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-2);
  padding: 0.4rem 0.85rem;
  border-radius: var(--r-pill);
  background: var(--surface-2);
  border: 1px solid var(--border);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.email-copy.is-copied .email-copy__hint {
  color: #1fc77d;
  background: color-mix(in srgb, #1fc77d 14%, transparent);
  border-color: color-mix(in srgb, #1fc77d 40%, transparent);
}
.contact__social {
  margin-top: var(--space-6);
  display: flex;
  gap: 0.6rem;
}

/* =============================================================
   Footer
   ============================================================= */
.footer {
  border-top: 1px solid var(--border);
  padding-block: var(--space-6);
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.footer__note {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  color: var(--text-3);
}
.footer__top {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--text-2);
  transition: color 0.25s var(--ease);
}
.footer__top:hover {
  color: var(--accent);
}
.footer__top-ico {
  transition: transform 0.3s var(--ease);
}
.footer__top:hover .footer__top-ico {
  transform: translate(2px, -2px);
}

/* =============================================================
   Language hint toast
   ============================================================= */
.hint {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  z-index: 120;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.65rem 0.65rem 1.1rem;
  border-radius: var(--r-pill);
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: transform 0.5s var(--ease), opacity 0.5s var(--ease);
  max-width: calc(100% - 2rem);
}
.hint.is-visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}
.hint .ico {
  color: var(--accent);
}
.hint__text {
  font-size: 0.92rem;
  color: var(--text);
}
.hint__accept {
  padding: 0.5rem 1rem;
  border-radius: var(--r-pill);
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.25s var(--ease);
}
.hint__accept:hover {
  background: var(--accent-2);
}
.hint__dismiss {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  color: var(--text-3);
  font-size: 1.3rem;
  line-height: 1;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.hint__dismiss:hover {
  color: var(--text);
  background: var(--surface-2);
}

/* =============================================================
   Scroll reveal
   ============================================================= */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  filter: blur(8px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease),
    filter 0.7s var(--ease);
  transition-delay: var(--rv-delay, 0ms);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
  filter: none;
}

/* =============================================================
   Responsive
   ============================================================= */
@media (max-width: 860px) {
  .nav__links {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.2rem;
    margin: 0;
    padding: 0.5rem;
    border-radius: var(--r-md);
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
  }
  .nav__links.is-open {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .nav__link {
    padding: 0.85rem 1rem;
    font-size: 1rem;
    text-align: left;
  }
  .nav__link.is-active::after {
    left: 1.15rem;
    transform: none;
    bottom: 50%;
    margin-bottom: -2.5px;
  }
  .burger {
    display: flex;
  }
  .cards,
  .work,
  .resume,
  .about {
    grid-template-columns: 1fr;
  }
  .about__media {
    position: static;
    max-width: 340px;
  }
}

@media (max-width: 560px) {
  .nav__word {
    display: none;
  }
  .hero {
    padding-top: 6rem;
  }
  .hero__actions {
    width: 100%;
  }
  .hero__actions .btn {
    flex: 1;
    justify-content: center;
  }
  .facts {
    grid-template-columns: 1fr;
  }
  .fact:nth-child(odd),
  .fact:nth-child(even) {
    padding-inline: 0;
    border-left: none;
  }
  .email-copy {
    width: 100%;
    justify-content: space-between;
  }
  .footer__inner {
    justify-content: center;
    text-align: center;
  }
  .hint {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* =============================================================
   Reduced motion
   ============================================================= */
@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;
  }
  .reveal {
    opacity: 1;
    transform: none;
    filter: none;
  }
  .bg__glow {
    animation: none;
  }
}