:root {
  --color-bg: #0A1414;
  --color-surface: #0F1D1C;
  --color-surface-2: #132524;
  --color-text: #E6F2F0;
  --color-text-muted: #9DB3AF;
  --color-text-subtle: #7F9A96;
  --color-accent: #2DD4BF;
  --color-accent-hover: #5EEAD4;
  --color-on-accent: #04201D;
  --color-accent-soft: rgba(45, 212, 191, 0.1);
  --color-border: rgba(45, 212, 191, 0.14);
  --color-border-strong: rgba(45, 212, 191, 0.38);
  --color-focus: #5EEAD4;

  --font-display: "Cormorant", Georgia, "Times New Roman", serif;
  --font-body: "Montserrat", system-ui, -apple-system, "Segoe UI", sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 999px;

  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 12px 32px rgba(0, 0, 0, 0.28);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in: cubic-bezier(0.55, 0, 1, 0.45);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-instant: 100ms;
  --dur-fast: 160ms;
  --dur-base: 240ms;
  --dur-slow: 400ms;
  --dur-reveal: 600ms;
  --shadow-lift: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 20px 40px -12px rgba(0, 0, 0, 0.5);

  --header-h: 68px;
  --container: 1120px;

  --z-header: 40;
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  margin: 0;
  text-wrap: balance;
  font-variant-numeric: lining-nums;
}

p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; }

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

main:focus { outline: none; }

/* Hidden without display:none, which breaks gradients inside <symbol> */
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.icon {
  width: 20px;
  height: 20px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon-lg { width: 28px; height: 28px; }

/* Technology logos: single color at rest, brand color on hover of their group */
.tech-logo {
  width: 1.2em;
  height: 1.2em;
  flex: none;
  fill: currentColor;
  stroke: none;
  transition: color var(--dur-base) var(--ease-out);
}
/* Brand hover colors from logo_sprite.py, checked for 3:1 on the chip surface;
   logos without an entry (Python, PostgreSQL, C++, CSS, WordPress, near-black
   brands) use the accent instead. */
[data-logo="java"] { --brand: #EA2D2E; }
[data-logo="php"] { --brand: #777BB4; }
[data-logo="javascript"] { --brand: #F7DF1E; }
[data-logo="html5"] { --brand: #E34F26; }
[data-logo="springboot"] { --brand: #6DB33F; }
[data-logo="docker"] { --brand: #2496ED; }
[data-logo="redis"] { --brand: #FF4438; }
[data-logo="git"] { --brand: #F03C2E; }
[data-logo="mysql"] { --brand: #4479A1; }
[data-logo="mongodb"] { --brand: #47A248; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 100;
  padding: var(--space-3) var(--space-4);
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transform: translateY(-160%);
  transition: transform var(--dur-fast) var(--ease-out);
}
.skip-link:focus { transform: translateY(0); }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgba(10, 20, 20, 0.88);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out);
}
.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(10, 20, 20, 0.96);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  min-height: 44px;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-accent);
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.brand:hover .brand-mark { background: var(--color-accent-soft); border-color: var(--color-accent); }
.brand-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.site-nav ul {
  display: flex;
  gap: var(--space-1);
}
.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 var(--space-3);
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--dur-fast) var(--ease-out);
}
/* Underline grows from the left on hover/focus and marks the section in view */
.site-nav a::after {
  content: "";
  position: absolute;
  left: var(--space-3);
  right: var(--space-3);
  bottom: 8px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur-base) var(--ease-out);
}
.site-nav a:hover { color: var(--color-text); }
.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a[aria-current="true"]::after { transform: scaleX(1); transform-origin: left; }
.site-nav a[aria-current="true"] { color: var(--color-accent); }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.lang-switch {
  position: relative;
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
}
/* Sliding thumb behind the active language */
.lang-switch::before {
  content: "";
  position: absolute;
  top: 3px;
  bottom: 3px;
  left: 3px;
  width: 44px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  transition: transform var(--dur-base) var(--ease-out);
}
.lang-switch[data-active="en"]::before { transform: translateX(44px); }
.lang-switch button {
  position: relative;
  width: 44px;
  min-height: 36px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--color-text-muted);
  font: 600 0.8rem/1 var(--font-body);
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color var(--dur-base) var(--ease-out);
}
.lang-switch button:hover { color: var(--color-text); }
.lang-switch button[aria-pressed="true"] { color: var(--color-on-accent); }

.menu-toggle {
  display: none;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out);
}
.menu-toggle:hover { border-color: var(--color-border-strong); }
/* Hamburger morphs into an X (transforms only) */
.menu-icon { position: relative; display: block; width: 18px; height: 14px; }
.menu-icon span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-fast) var(--ease-out);
}
.menu-icon span:nth-child(1) { top: 0; }
.menu-icon span:nth-child(2) { top: 6px; }
.menu-icon span:nth-child(3) { top: 12px; }
.menu-toggle[aria-expanded="true"] .menu-icon span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-icon span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-toggle[aria-expanded="true"] .menu-icon span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 900px) {
  .menu-toggle { display: grid; }
  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-3) var(--space-4) var(--space-5);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    /* closing is faster than opening */
    transition: opacity var(--dur-fast) var(--ease-in), transform var(--dur-fast) var(--ease-in), visibility 0s linear var(--dur-fast);
  }
  .site-nav.is-open {
    transform: none;
    opacity: 1;
    visibility: visible;
    transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
  }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav li {
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity var(--dur-fast) var(--ease-in), transform var(--dur-fast) var(--ease-in);
  }
  .site-nav.is-open li {
    opacity: 1;
    transform: none;
    transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
    transition-delay: calc(var(--i, 0) * 40ms + 60ms);
  }
  .site-nav li:nth-child(2) { --i: 1; }
  .site-nav li:nth-child(3) { --i: 2; }
  .site-nav li:nth-child(4) { --i: 3; }
  .site-nav li:nth-child(5) { --i: 4; }
  .site-nav li:nth-child(6) { --i: 5; }
  .site-nav a { width: 100%; font-size: 1rem; padding: 0 var(--space-2); }
  .site-nav a::after { left: var(--space-2); right: auto; width: 24px; bottom: 6px; }
}
@media (max-width: 420px) {
  .brand-name { display: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 48px;
  padding: 0 var(--space-5);
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  background: transparent;
  font: 600 0.95rem/1 var(--font-body);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
  touch-action: manipulation;
}
.btn .icon { transition: transform var(--dur-fast) var(--ease-out); }
.btn-primary {
  background: var(--color-accent);
  color: var(--color-on-accent);
}
.btn-primary:hover { background: var(--color-accent-hover); }
.btn-ghost {
  border-color: var(--color-border-strong);
  color: var(--color-text);
}
.btn-ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }
@media (hover: hover) {
  .btn:hover { transform: translateY(-2px); }
  .btn-primary:hover { box-shadow: 0 12px 28px -12px rgba(45, 212, 191, 0.65); }
  /* icons nudge in the direction of their action */
  .btn:hover .nudge-x { transform: translateX(3px); }
  .btn:hover .nudge-y { transform: translateY(2px); }
}
.btn:active { transform: scale(0.97); transition-duration: var(--dur-instant); }
.btn-lg { min-height: 56px; padding: 0 var(--space-6); font-size: 1rem; }
.btn-sm { min-height: 40px; padding: 0 var(--space-4); font-size: 0.85rem; }

.icon-btn {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: rgba(10, 20, 20, 0.8);
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), scale var(--dur-fast) var(--ease-out);
}
/* `scale` (not `transform`) so it composes with the nav buttons' positioning transform */
.icon-btn:hover { border-color: var(--color-accent); color: var(--color-accent); scale: 1.06; }
.icon-btn:active { scale: 0.94; transition-duration: var(--dur-instant); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-9) 0 var(--space-8);
}
.hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -20%;
  width: 70vw;
  max-width: 820px;
  aspect-ratio: 1;
  background: radial-gradient(closest-side, rgba(45, 212, 191, 0.11), rgba(45, 212, 191, 0.04) 55%, transparent 100%);
  pointer-events: none;
  animation: glow-in 1.6s var(--ease-out) both;
}
@keyframes glow-in {
  from { opacity: 0; transform: scale(0.85); }
}
.hero-inner { position: relative; }

.eyebrow {
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.hero-title {
  margin-top: var(--space-5);
  font-size: clamp(3rem, 9vw, 6.25rem);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: -0.01em;
}
.hero-rule {
  display: block;
  width: 72px;
  height: 2px;
  margin: var(--space-6) 0;
  background: var(--color-accent);
}
.hero-lead {
  max-width: 30ch;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  font-weight: 500;
  line-height: 1.25;
}
.hero-sub {
  max-width: 56ch;
  margin-top: var(--space-4);
  color: var(--color-text-muted);
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  max-width: 640px;
  margin: var(--space-8) 0 0;
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
}
.hero-stats dt {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.25rem);
  font-weight: 600;
  color: var(--color-accent);
  line-height: 1.1;
  font-variant-numeric: lining-nums tabular-nums;
}
/* JS reserves the final width so counting up never shifts the layout */
.hero-stats [data-count] { display: inline-block; text-align: end; }
.hero-stats dd {
  margin: var(--space-1) 0 0;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  line-height: 1.4;
}

/* ---------- Sections ---------- */
.section {
  padding: var(--space-8) 0;
  scroll-margin-top: var(--header-h);
}
@media (min-width: 768px) {
  .section { padding: var(--space-9) 0; }
}

.section-head { margin-bottom: var(--space-7); }
.section-head--split {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-5);
}
.section-kicker {
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  margin-bottom: var(--space-2);
  font-variant-numeric: tabular-nums;
}
.section h2 {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  gap: var(--space-6);
}
.about-grid .section-head { margin-bottom: 0; }
.about-text {
  display: grid;
  gap: var(--space-4);
  max-width: 65ch;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}
.about-text p:first-child { color: var(--color-text); }
.about-card {
  align-self: start;
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}
.facts { display: grid; gap: var(--space-4); }
.facts li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-muted);
  font-size: 0.95rem;
}
.facts .icon { color: var(--color-accent); }
.availability {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: 0.9rem;
  font-weight: 500;
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-soft);
}
@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 2fr 1.1fr;
    align-items: start;
    gap: var(--space-7);
  }
}

/* ---------- Timeline ---------- */
.timeline {
  display: grid;
  gap: var(--space-2);
  border-left: 1px solid var(--color-border);
}
.timeline-item {
  position: relative;
  display: grid;
  gap: var(--space-3);
  padding: 0 0 var(--space-7) var(--space-5);
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  top: 8px;
  left: -5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
}
.timeline-date {
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}
.timeline-place {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}
.timeline-body h3 { font-size: 1.75rem; }
.timeline-body ul {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
  max-width: 68ch;
}
.timeline-body li {
  position: relative;
  padding-left: var(--space-5);
  color: var(--color-text-muted);
}
.timeline-body li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.8em;
  width: 10px;
  height: 1px;
  background: var(--color-accent);
}
@media (min-width: 768px) {
  .timeline { border-left: 0; }
  .timeline-item {
    grid-template-columns: 220px 1fr;
    gap: var(--space-7);
    padding-left: 0;
  }
  .timeline-item::before { display: none; }
  .timeline-body {
    padding-left: var(--space-7);
    border-left: 1px solid var(--color-border);
  }
}

/* ---------- Projects ---------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.filter-btn {
  min-height: 40px;
  padding: 0 var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--color-text-muted);
  font: 500 0.85rem/1 var(--font-body);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
  touch-action: manipulation;
}
.filter-btn:hover { border-color: var(--color-border-strong); color: var(--color-text); }
.filter-btn:active { transform: scale(0.96); transition-duration: var(--dur-instant); }
.filter-btn[aria-pressed="true"] {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.projects-grid {
  display: grid;
  gap: var(--space-5);
}
@media (min-width: 768px) {
  .projects-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.project-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  transition: border-color var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.project-card:hover,
.project-card:focus-within { border-color: var(--color-border-strong); }
@media (hover: hover) {
  .project-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
  .project-card:hover .tech-logo { color: var(--brand, var(--color-accent)); }
}
.project-card[hidden] { display: none; }

@media (min-width: 1024px) {
  .project-card.is-featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1.35fr 1fr;
  }
  .project-card.is-featured .project-cover { aspect-ratio: auto; min-height: 100%; }
}

.project-cover {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  padding: 0;
  border: 0;
  overflow: hidden;
  background: var(--color-surface-2);
  cursor: pointer;
}
.project-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
  opacity: 0;
  transition: transform 500ms var(--ease-out), opacity var(--dur-slow) var(--ease-out);
}
.project-cover img.is-loaded { opacity: 1; }
.project-cover:hover img { transform: scale(1.03); }
.project-cover:focus-visible { outline-offset: -3px; border-radius: 0; }
.cover-badge {
  position: absolute;
  right: var(--space-3);
  bottom: var(--space-3);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  background: rgba(10, 20, 20, 0.85);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font: 500 0.8rem/1 var(--font-body);
}
.cover-badge .icon { width: 16px; height: 16px; color: var(--color-accent); }

.project-cover.is-placeholder {
  display: grid;
  place-items: center;
  cursor: default;
  background:
    radial-gradient(circle at 30% 20%, rgba(45, 212, 191, 0.22), transparent 55%),
    linear-gradient(135deg, var(--color-surface-2), var(--color-bg));
}
.placeholder-mark {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 4.5rem);
  font-weight: 600;
  color: var(--color-accent);
  opacity: 0.85;
  letter-spacing: 0.02em;
}

.project-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  flex: 1;
}
@media (min-width: 768px) {
  .project-body { padding: var(--space-6); }
}
.project-meta {
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.project-body h3 { font-size: 1.85rem; }
.project-summary { color: var(--color-text-muted); }
.project-highlights {
  display: grid;
  gap: var(--space-2);
  font-size: 0.92rem;
}
.project-highlights li {
  position: relative;
  padding-left: var(--space-5);
}
.project-highlights li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.75em;
  width: 10px;
  height: 1px;
  background: var(--color-accent);
}
.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-3);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.tag-list li {
  padding: 6px var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-accent-soft);
  color: var(--color-text);
  font-size: 0.8rem;
  font-weight: 500;
  line-height: 1.3;
}
.tag-list .tech {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-left: 10px;
}
.tag-list .tech-logo { width: 1.15em; height: 1.15em; color: var(--color-text-muted); }
.tag-list--soft li {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.empty-state {
  padding: var(--space-7) var(--space-5);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  color: var(--color-text-muted);
  text-align: center;
}

/* ---------- Skills ---------- */
.skills-grid {
  display: grid;
  gap: var(--space-4);
}
@media (min-width: 768px) { .skills-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1024px) { .skills-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.skill-group {
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  transition: border-color var(--dur-base) var(--ease-out);
}
/* Chips are not clickable: hovering the group lights up its logos in their
   brand colors, with color only (no lift that would fake an affordance) */
@media (hover: hover) {
  .skill-group:hover { border-color: var(--color-border-strong); }
  .skill-group:hover .tech-logo { color: var(--brand, var(--color-accent)); }
}
.skill-group h3 {
  font-size: 1.45rem;
  margin-bottom: var(--space-4);
}

/* ---------- Education ---------- */
.edu-grid {
  display: grid;
  gap: var(--space-5);
}
@media (min-width: 1024px) {
  .edu-grid { grid-template-columns: 1fr 2fr; align-items: start; }
}
.edu-card {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-6);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 100% 0%, rgba(45, 212, 191, 0.12), transparent 60%),
    var(--color-surface);
}
.edu-card .icon { color: var(--color-accent); margin-bottom: var(--space-2); }
.edu-date {
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.edu-card h3 { font-size: 2rem; }
.edu-school { color: var(--color-text); font-weight: 500; }
.edu-card p:last-child { color: var(--color-text-muted); }

.certs-title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 1.6rem;
  margin-bottom: var(--space-3);
}
.certs-title .icon { color: var(--color-accent); }
.cert-list li {
  display: grid;
  gap: 2px;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border);
}
.cert-list li:last-child { border-bottom: 0; }
.cert-name { font-weight: 500; }
.cert-meta { color: var(--color-text-subtle); font-size: 0.85rem; }
@media (min-width: 768px) {
  .cert-list li {
    grid-template-columns: 1fr auto;
    align-items: baseline;
    gap: var(--space-5);
  }
  .cert-meta { text-align: right; }
}

/* ---------- Contact ---------- */
.contact { border-top: 1px solid var(--color-border); }
.contact-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.contact h2 { font-size: clamp(2.5rem, 7vw, 4.5rem); }
.contact-text {
  max-width: 48ch;
  margin: var(--space-4) 0 var(--space-6);
  color: var(--color-text-muted);
  font-size: 1.05rem;
}
.contact .btn span { overflow-wrap: anywhere; }
.social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
}
.social a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0 var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.9rem;
  text-decoration: none;
  transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.social a:hover { border-color: var(--color-accent); color: var(--color-accent); }
@media (hover: hover) {
  .social a:hover { transform: translateY(-2px); }
}
.social a:active { transform: scale(0.97); transition-duration: var(--dur-instant); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-5) 0;
  color: var(--color-text-subtle);
  font-size: 0.85rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
}
.built { display: inline-flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }
.built-logos { display: inline-flex; gap: 6px; }
.built-logos .tech-logo { width: 1.1em; height: 1.1em; }

/* ---------- Lightbox ---------- */
.lightbox {
  width: 100%;
  max-width: 100%;
  height: 100%;
  max-height: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--color-text);
}
/* Enter/exit with @starting-style; browsers without it open and close instantly.
   Exit uses the shorter duration and ease-in. */
.lightbox {
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-in), overlay var(--dur-fast) allow-discrete, display var(--dur-fast) allow-discrete;
}
.lightbox[open] {
  opacity: 1;
  transition-duration: var(--dur-base);
  transition-timing-function: var(--ease-out);
}
@starting-style { .lightbox[open] { opacity: 0; } }
.lightbox::backdrop {
  background: rgba(4, 10, 10, 0);
  transition: background-color var(--dur-fast) var(--ease-in), overlay var(--dur-fast) allow-discrete, display var(--dur-fast) allow-discrete;
}
.lightbox[open]::backdrop {
  background: rgba(4, 10, 10, 0.94);
  transition-duration: var(--dur-base);
}
@starting-style { .lightbox[open]::backdrop { background: rgba(4, 10, 10, 0); } }
.lightbox-inner {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100%;
  padding: var(--space-3) var(--space-4) var(--space-5);
  transform: scale(0.98);
  transition: transform var(--dur-fast) var(--ease-in);
}
.lightbox[open] .lightbox-inner { transform: none; transition: transform var(--dur-base) var(--ease-out); }
@starting-style { .lightbox[open] .lightbox-inner { transform: scale(0.98); } }
.lightbox-bar {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.lightbox-title {
  flex: 1;
  min-width: 0;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}
.lightbox-counter {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}
.lightbox-figure {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  min-height: 0;
  margin: 0;
  padding: var(--space-4) 0;
}
.lightbox-figure img {
  max-width: min(1200px, 100%);
  max-height: calc(100dvh - 190px);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  touch-action: pan-y;
}
.lightbox-figure figcaption {
  max-width: 70ch;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  text-align: center;
}
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}
.lightbox-prev { left: var(--space-4); }
.lightbox-next { right: var(--space-4); }
.lightbox-nav[hidden] { display: none; }
@media (max-width: 767px) {
  .lightbox-nav { top: auto; bottom: var(--space-4); transform: none; }
  .lightbox-figure img { max-height: calc(100dvh - 230px); }
}
/* ---------- Reveal on scroll ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur-reveal) var(--ease-out), transform var(--dur-reveal) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}
/* The hero rule draws itself instead of sliding up */
.js .hero-rule.reveal { transform: scaleX(0); transform-origin: left; }
.js .hero-rule.reveal.is-visible { transform: scaleX(1); }

/* Children of a revealed group cascade in (--i is set by main.js, capped) */
.js .skill-group .tag-list li,
.js .certs .cert-list li {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out), color var(--dur-base) var(--ease-out);
  transition-delay: calc(var(--reveal-delay, 0ms) + 150ms + var(--i, 0) * 45ms);
}
.js .skill-group.is-visible .tag-list li,
.js .certs.is-visible .cert-list li {
  opacity: 1;
  transform: none;
}

/* ---------- View transitions (language switch, project filters) ---------- */
::view-transition-group(*) {
  animation-duration: var(--dur-slow);
  animation-timing-function: var(--ease-out);
}

/* ---------- Reduced motion: remove travel and loops, keep feedback ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
  .js .reveal,
  .js .hero-rule.reveal,
  .js .skill-group .tag-list li,
  .js .certs .cert-list li { transform: none !important; transition-delay: 0ms !important; }
  .site-nav, .site-nav li, .lightbox-inner { transform: none !important; }
  .site-nav li { transition-delay: 0ms !important; }
  .btn:hover, .btn:active, .filter-btn:active, .social a:hover, .social a:active,
  .project-card:hover, .project-cover:hover img, .btn:hover .icon { transform: none; }
  .icon-btn:hover, .icon-btn:active { scale: none; }
  .menu-icon span, .lang-switch::before, .site-nav a::after { transition-duration: 0.01ms !important; }
}