/* =========================================================
   Sosu Alfred · Portfolio
   Premium, restrained, editorial. Light + dark.
   No frameworks. System font stack. CSS variables.
   ========================================================= */

/* ---------- Theme tokens ---------- */
:root {
  --bg: #ffffff;
  --bg-elev: #ffffff;
  --bg-soft: #f5f5f7;
  --text: #1d1d1f;
  --text-soft: #6e6e73;
  --text-muted: #a1a1a6;
  --border: rgba(0, 0, 0, 0.09);
  --border-strong: rgba(0, 0, 0, 0.16);
  --accent: #1d1d1f;
  --link: #0066cc;
  --glass: rgba(255, 255, 255, 0.7);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 12px 40px rgba(0, 0, 0, 0.08);

  --maxw: 1080px;
  --radius: 16px;
  --gap: clamp(72px, 10vw, 150px);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ext-arrow: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7 17 17 7'/%3E%3Cpath d='M7 7h10v10'/%3E%3C/svg%3E");
}

:root[data-theme="dark"] {
  --bg: #000000;
  --bg-elev: #0d0d0f;
  --bg-soft: #141416;
  --text: #f5f5f7;
  --text-soft: #a1a1a6;
  --text-muted: #6e6e73;
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.2);
  --accent: #f5f5f7;
  --link: #2997ff;
  --glass: rgba(8, 8, 10, 0.6);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 20px 60px rgba(0, 0, 0, 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #000000;
    --bg-elev: #0d0d0f;
    --bg-soft: #141416;
    --text: #f5f5f7;
    --text-soft: #a1a1a6;
    --text-muted: #6e6e73;
    --border: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.2);
    --accent: #f5f5f7;
    --link: #2997ff;
    --glass: rgba(8, 8, 10, 0.6);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 20px 60px rgba(0, 0, 0, 0.5);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 17px;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.03em;
}

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

:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  padding-block: var(--gap);
  border-top: 1px solid var(--border);
}

.section-head {
  max-width: 720px;
  margin-bottom: clamp(44px, 5vw, 68px);
}

.eyebrow {
  display: block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(32px, 4.6vw, 50px);
  letter-spacing: -0.04em;
}

.section-sub {
  margin-top: 20px;
  color: var(--text-soft);
  font-size: clamp(17px, 2vw, 19px);
  max-width: 56ch;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background-color 0.35s var(--ease), border-color 0.35s var(--ease);
}
.nav.scrolled {
  background: var(--glass);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom-color: var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.02em;
  color: var(--text);
}
.brand-mark {
  width: 32px;
  height: 32px;
  flex: none;
  display: block;
  overflow: visible;
}
.bm-ring { fill: none; stroke: currentColor; stroke-width: 1.3; opacity: 0.9; }
.bm-s, .bm-a {
  font-family: ui-serif, "New York", "Iowan Old Style", Georgia, "Times New Roman", serif;
  font-size: 28px;
  font-weight: 500;
  font-style: italic;
  fill: currentColor;
}
/* the A overlaps the S with a fine background halo, so the pair reads
   as one interlocked monogram rather than two separate letters */
.bm-a {
  paint-order: stroke;
  stroke: var(--bg);
  stroke-width: 3px;
  stroke-linejoin: round;
}
.brand-name { white-space: nowrap; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.nav-links a {
  padding: 8px 15px;
  font-size: 14.5px;
  color: var(--text-soft);
  border-radius: 999px;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--text); }

.nav-actions { display: flex; align-items: center; gap: 8px; }

.nav-cta {
  font-size: 14px;
  font-weight: 500;
  padding: 9px 18px;
  border-radius: 999px;
  color: var(--bg);
  background: var(--text);
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
}
.nav-cta:hover { opacity: 0.85; transform: translateY(-1px); }

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}
.icon-btn:hover { transform: translateY(-1px); border-color: var(--border-strong); }
.icon-btn:active { transform: translateY(0); }
.icon-btn svg { width: 18px; height: 18px; }

.theme-toggle .sun { display: none; }
:root[data-theme="dark"] .theme-toggle .sun { display: block; }
:root[data-theme="dark"] .theme-toggle .moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .moon { display: none; }
}

.nav-toggle { display: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.01em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease),
    border-color 0.2s var(--ease), color 0.2s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--text); color: var(--bg); }
.btn-primary:hover { transform: translateY(-2px); opacity: 0.9; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--text); }

/* ---------- Hero ---------- */
.hero {
  padding-top: clamp(130px, 17vw, 180px);
  padding-bottom: var(--gap);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: clamp(36px, 6vw, 88px);
  align-items: center;
}
.hero-kicker {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.kicker-rule {
  width: 40px; height: 1px;
  background: var(--border-strong);
  flex: none;
  transform-origin: left;
  animation: ruleIn 0.9s var(--ease) both 0.1s;
}
@keyframes ruleIn { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.hero h1 {
  font-size: clamp(46px, 7.5vw, 92px);
  letter-spacing: -0.05em;
  line-height: 0.96;
}
.hero-role {
  margin-top: 26px;
  font-size: clamp(18px, 2.3vw, 22px);
  font-weight: 500;
  color: var(--text-soft);
  letter-spacing: -0.02em;
}
.hero-lead {
  margin-top: 22px;
  font-size: clamp(16px, 1.9vw, 18px);
  color: var(--text-soft);
  max-width: 50ch;
}
.hero-cta {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.hero-social {
  display: inline-grid;
  place-items: center;
  width: 50px; height: 50px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-soft);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.hero-social:hover { color: var(--text); border-color: var(--text); transform: translateY(-2px); }
.hero-social svg { width: 20px; height: 20px; }

/* Portrait: offset frame + 3D pointer tilt */
.hero-portrait {
  position: relative;
  justify-self: center;
  width: min(100%, 360px);
  aspect-ratio: 4 / 5;
  perspective: 1100px;
}
.portrait-frame {
  position: absolute;
  inset: 0;
  border: 1px solid var(--border-strong);
  border-radius: 26px;
  transform: translate(18px, 18px);
  transition: transform 0.55s var(--ease), border-color 0.55s var(--ease);
  pointer-events: none;
}
.portrait-card {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  transform-style: preserve-3d;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
  will-change: transform;
}
.portrait-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.portrait-sheen {
  position: absolute;
  inset: 0;
  background: radial-gradient(240px circle at var(--mx, 50%) var(--my, 14%),
    rgba(255, 255, 255, 0.24), transparent 60%);
  opacity: 0;
  transition: opacity 0.45s var(--ease);
  mix-blend-mode: soft-light;
  pointer-events: none;
}
.hero-portrait:hover .portrait-frame { transform: translate(11px, 11px); border-color: var(--text); }
.hero-portrait:hover .portrait-sheen { opacity: 1; }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(36px, 5vw, 80px);
  align-items: start;
}
.about-lead {
  font-size: clamp(21px, 2.7vw, 29px);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.4;
  color: var(--text);
}
.about-lead .muted { color: var(--text-muted); }

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat {
  padding: 26px 24px;
  background: var(--bg);
}
.stat .n {
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 600;
  letter-spacing: -0.04em;
  color: var(--text);
}
.stat .t { margin-top: 4px; font-size: 14px; color: var(--text-soft); }

/* ---------- Cards (what I do) ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.card {
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elev);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: var(--shadow-md); }
.card-ic {
  display: inline-grid;
  place-items: center;
  width: 48px; height: 48px;
  border-radius: 13px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--text);
  margin-bottom: 24px;
}
.card-ic svg { width: 23px; height: 23px; }
.card h3 { font-size: 20px; letter-spacing: -0.02em; }
.card p { margin: 12px 0 0; color: var(--text-soft); font-size: 15px; }

/* ---------- Skills ---------- */
.skill-groups {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.skill-group {
  padding: 28px 30px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elev);
}
.skill-group h4 {
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 18px;
  font-weight: 600;
}
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  font-size: 13.5px;
  color: var(--text-soft);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.tag:hover { color: var(--text); border-color: var(--border-strong); }

/* ---------- Experience timeline ---------- */
.xp-shell {
  display: grid;
  grid-template-columns: 0.82fr 1.4fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}
/* the intro stays pinned while the timeline scrolls past it — the
   relative motion gives the section an Apple-style sense of depth */
.xp-aside {
  position: sticky;
  top: clamp(96px, 14vh, 140px);
}
.xp-aside .section-head { margin-bottom: 0; max-width: none; }
.timeline { position: relative; padding-left: 28px; }
/* the rail */
.timeline::before {
  content: "";
  position: absolute;
  left: 4px; top: 8px; bottom: 8px;
  width: 1px;
  background: var(--border);
}
/* scroll-progress fill drawn over the rail (height set by JS via --fill) */
.timeline::after {
  content: "";
  position: absolute;
  left: 4px; top: 8px;
  width: 1px;
  height: var(--fill, 0px);
  max-height: calc(100% - 16px);
  background: var(--accent);
  box-shadow: 0 8px 16px -6px var(--accent);
  transition: height 0.08s linear;
}
/* parallax transform + fade are driven per-item by JS through --ty / --op / --sc */
.tl-item {
  position: relative;
  padding-bottom: clamp(40px, 5vw, 56px);
  opacity: var(--op, 1);
  transform: translateY(var(--ty, 0px)) scale(var(--sc, 1));
  transform-origin: left center;
  will-change: transform, opacity;
}
.tl-item:last-of-type { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -28px; top: 7px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--border-strong);
  transition: transform 0.45s var(--ease), background-color 0.45s var(--ease), box-shadow 0.45s var(--ease);
}
/* the node nearest the reading line lights up as you scroll */
.tl-item.is-active::before {
  background: var(--accent);
  transform: scale(1.35);
  box-shadow: 0 0 0 4px var(--bg), 0 0 0 5px var(--border);
}
.tl-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 16px;
}
.tl-role { font-size: 18px; font-weight: 600; letter-spacing: -0.02em; }
.tl-role a { color: var(--text); border-bottom: 1px solid var(--border-strong); }
.tl-role a:hover { border-color: var(--text); }
.tl-date {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.tl-meta { margin-top: 4px; font-size: 14px; color: var(--text-soft); }
.tl-list { margin-top: 14px; display: grid; gap: 9px; }
.tl-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  color: var(--text-soft);
}
.tl-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--text-muted);
}
.tl-stack { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 6px; }
.tl-stack span {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 7px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.tl-earlier {
  margin-top: 6px;
  font-size: 14px;
  color: var(--text-soft);
  padding-left: 20px;
  position: relative;
}
.tl-earlier::before {
  content: "";
  position: absolute;
  left: 0; top: 10px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--text-muted);
}

/* Education */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}
.edu-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elev);
  overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.edu-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}
.edu-tag {
  align-self: flex-start;
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  margin-bottom: 20px;
}
.edu-card h4 { font-size: 17px; letter-spacing: -0.02em; }
.edu-card .where { margin-top: 6px; font-size: 14px; color: var(--text-soft); }
.edu-card .when {
  margin-top: 3px; font-size: 13px; color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}
.edu-card p { margin: 14px 0 0; font-size: 13.5px; color: var(--text-soft); line-height: 1.5; }

.honors {
  padding: clamp(24px, 3vw, 34px);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-soft);
}
.honors h4 {
  font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-muted); font-weight: 600; margin-bottom: 20px;
}
.honors ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px 32px;
}
.honors li {
  position: relative; padding-left: 26px;
  font-size: 14px; color: var(--text-soft); line-height: 1.45;
}
.honors li svg {
  position: absolute; left: 0; top: 3px;
  width: 15px; height: 15px; color: var(--accent);
}

/* ---------- Portfolio ---------- */
.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.work {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.work:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.work-media {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
}
/* logo tiles: wordmark centered on a branded background */
.work-media--logo {
  display: grid;
  place-items: center;
  padding: 16%;
}
.work-media.work-media--logo img {
  width: 100%;
  height: auto;
  max-height: 100%;
  object-fit: contain;
}
.work-media--movebills { background: linear-gradient(135deg, #eef3fb 0%, #e9f6ee 100%); }
.work-media--forexgh { background: linear-gradient(135deg, #0b1a2e 0%, #07101d 100%); }
.work-media--hubtel { background: linear-gradient(135deg, #12a99c 0%, #0a6b63 100%); }
.work-tag {
  position: absolute;
  top: 12px; left: 12px;
  font-size: 10.5px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--glass);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border: 1px solid var(--border);
  color: var(--text);
  z-index: 1;
}

/* product chips under company experience */
.tl-products { margin-top: 16px; }
.tl-product {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 9px 16px 9px 9px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--bg-soft);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.tl-product:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.tl-product-ic {
  width: 38px; height: 38px; flex: none;
  border-radius: 9px;
  object-fit: cover;
  border: 1px solid var(--border);
}
.tl-product-info { display: flex; flex-direction: column; gap: 2px; }
.tl-product-name { font-size: 14px; font-weight: 600; letter-spacing: -0.01em; }
.tl-product-links { display: flex; flex-wrap: wrap; gap: 6px 16px; }
.tl-product-links a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-soft);
  transition: color 0.2s var(--ease);
}
.tl-product-links a::after {
  content: "";
  width: 10px; height: 10px;
  flex: none;
  background-color: currentColor;
  -webkit-mask: var(--ext-arrow) center / contain no-repeat;
          mask: var(--ext-arrow) center / contain no-repeat;
  transition: transform 0.2s var(--ease);
}
.tl-product-links a:hover { color: var(--text); }
.tl-product-links a:hover::after { transform: translate(1px, -1px); }
.work-media img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.work-body { padding: 22px 24px 24px; }
.work-body h3 { font-size: 18px; letter-spacing: -0.02em; }
.work-body p { margin: 6px 0 0; font-size: 14px; color: var(--text-soft); }
.work-links { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 16px; }
.work-links a {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 13.5px; font-weight: 500;
  color: var(--text-soft);
  transition: color 0.2s var(--ease);
}
.work-links a:hover { color: var(--text); }
.work-links svg { width: 13px; height: 13px; }

/* ---------- Contact ---------- */
.contact {
  text-align: center;
}
.contact h2 {
  font-size: clamp(36px, 6vw, 64px);
  letter-spacing: -0.045em;
  max-width: 14ch;
  margin: 0 auto;
}
.contact p {
  margin: 24px auto 0;
  max-width: 48ch;
  color: var(--text-soft);
  font-size: clamp(17px, 2vw, 19px);
}
.contact-cta { margin-top: 38px; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding-block: 38px;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.footer .brand { font-size: 15px; }
.footer .brand-mark { width: 25px; height: 25px; }
.footer-copy { font-size: 13px; color: var(--text-muted); }
.footer-social {
  display: inline-grid; place-items: center;
  width: 38px; height: 38px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--text-soft);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.footer-social:hover { color: var(--text); border-color: var(--text); transform: translateY(-2px); }
.footer-social svg { width: 17px; height: 17px; }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }

/* ---------- Micro-interactions ---------- */
/* primary/ghost button arrow nudges on hover */
.btn .arr { transition: transform 0.28s var(--ease); }
.btn:hover .arr { transform: translateX(4px); }

/* nav links: underline grows from the left */
.nav-links a { position: relative; }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 15px; right: 15px; bottom: 6px;
  height: 1.5px;
  border-radius: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  opacity: 0;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); opacity: 0.55; }

/* nav CTA arrow-free, subtle press already handled */

/* theme toggle: gentle rotation on hover */
.theme-toggle svg { transition: transform 0.5s var(--ease); }
.theme-toggle:hover svg { transform: rotate(22deg); }

/* skill tags lift slightly */
.tag { transition: transform 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease); }
.tag:hover { transform: translateY(-2px); }

/* project link arrows drift up-right */
.work-links a svg { transition: transform 0.25s var(--ease); }
.work-links a:hover svg { transform: translate(2px, -2px); }

/* portrait tilt + sheen are defined in the Hero section */

/* counters avoid layout shift while animating */
.stat .n { font-variant-numeric: tabular-nums; }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .nav-links { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-portrait { order: -1; width: min(72%, 300px); }
  .about-grid { grid-template-columns: 1fr; }
  .xp-shell { grid-template-columns: 1fr; gap: 36px; }
  .xp-aside { position: static; }
  .cards { grid-template-columns: 1fr; }
  .skill-groups { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: repeat(2, 1fr); }
  .edu-grid { grid-template-columns: 1fr; }
  .honors ul { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav-cta { display: none; }
  .nav-toggle { display: inline-grid; }

  .mobile-menu {
    position: fixed;
    inset: 66px 0 auto 0;
    z-index: 99;
    background: var(--glass);
    -webkit-backdrop-filter: saturate(180%) blur(22px);
    backdrop-filter: saturate(180%) blur(22px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  }
  .mobile-menu.open { opacity: 1; transform: none; pointer-events: auto; }
  .mobile-menu ul { padding: 12px 28px 24px; display: grid; gap: 2px; }
  .mobile-menu a {
    display: block;
    padding: 14px 12px;
    font-size: 18px;
    font-weight: 500;
    border-radius: 12px;
    color: var(--text);
  }
  .mobile-menu a:active { background: var(--bg-soft); }

  .work-grid { grid-template-columns: 1fr; }
}

@media (min-width: 721px) {
  .mobile-menu { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important;
      transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}