/* ============================================================
   Tokens
   ============================================================ */
:root {
  /* palette */
  --bg:              #f4f6f8;
  --ink:             #3e4c59;
  --ink-soft:        #6e7e8f;

  --accent-1:        #f4c2d7;
  --accent-1-dark:   #8a2f55;
  --accent-1-neon:   #ff2e88;

  --accent-2:        #a8ddc6;
  --accent-2-dark:   #1f6b4b;
  --accent-2-neon:   #00e28a;

  --accent-3:        #a9cbef;
  --accent-3-dark:   #1d507f;
  --accent-3-neon:   #2e9dff;

  --surface:         #ffffff;
  --rule:            #dfe4e9;
  --tab-neutral:     #dfe6ee;   /* Home tab at rest — a quiet stand-in so the
                                   three accents stay tied to the three sections */

  /* type */
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-ui: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;

  /* header geometry — JS reads these, keep the units in px */
  --header-max: 224px;
  --header-min: 60px;
  --shrink-range: 160px;
  --base-buffer: 40px;
  --title-max: 46px;
  --title-min: 21px;

  /* scroll progress, 0 → 1. Written by scripts.js on scroll. */
  --p: 0;

  /* depth */
  --lift-1: 0 1px 0 rgba(62, 76, 89, 0.10), 0 4px 12px rgba(62, 76, 89, 0.10);
  --lift-2: 0 2px 0 rgba(62, 76, 89, 0.12), 0 10px 24px rgba(62, 76, 89, 0.16);
}

/* Category → accent family. Used by cards, legend swatches, card buttons. */
[data-category="responsible-ai"],
[data-accent="1"] { --cat: var(--accent-1); --cat-dark: var(--accent-1-dark); --cat-neon: var(--accent-1-neon); }

[data-category="data-viz"],
[data-accent="3"] { --cat: var(--accent-3); --cat-dark: var(--accent-3-dark); --cat-neon: var(--accent-3-neon); }

[data-category="older"],
[data-accent="2"] { --cat: var(--accent-2); --cat-dark: var(--accent-2-dark); --cat-neon: var(--accent-2-neon); }


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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; margin: 0; }
p { margin: 0; }
img { max-width: 100%; display: block; }

a { color: var(--accent-3-dark); }

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

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--ink); color: var(--bg);
  padding: 10px 16px; font-size: 13px; font-weight: 500;
}
.skip-link:focus { left: 8px; top: 8px; }

.shell {
  width: 66%;
  max-width: 1080px;
  margin-inline: auto;
}


/* ============================================================
   Header — shrinks and pins. Geometry is driven by --p.
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--ink);
}

.hero {
  position: relative;
  overflow: hidden;
  height: calc(var(--header-max) - (var(--header-max) - var(--header-min)) * var(--p));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-inline: 20px;
}

/* Dot-matrix pattern — an LED readout with a few pixels lit brighter.
   Sweeps up and fades as the header collapses, so the pinned bar is flat --ink. */
.hero__pattern {
  position: absolute;
  inset: -20px 0 0;
  opacity: calc((1 - var(--p)) * 0.85);
  transform: translateY(calc(var(--p) * -64px));
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20144%20144%22%20width%3D%22144%22%20height%3D%22144%22%3E%3Ccircle%20cx%3D%229.0%22%20cy%3D%229.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%229.0%22%20cy%3D%2227.0%22%20r%3D%222.6%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.42%22%2F%3E%3Ccircle%20cx%3D%229.0%22%20cy%3D%2245.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%229.0%22%20cy%3D%2263.0%22%20r%3D%222.6%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.42%22%2F%3E%3Ccircle%20cx%3D%229.0%22%20cy%3D%2281.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%229.0%22%20cy%3D%2299.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%229.0%22%20cy%3D%22117.0%22%20r%3D%223.4%22%20fill%3D%22%232e9dff%22%20fill-opacity%3D%220.55%22%2F%3E%3Ccircle%20cx%3D%229.0%22%20cy%3D%22135.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2227.0%22%20cy%3D%229.0%22%20r%3D%223.4%22%20fill%3D%22%232e9dff%22%20fill-opacity%3D%220.55%22%2F%3E%3Ccircle%20cx%3D%2227.0%22%20cy%3D%2227.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2227.0%22%20cy%3D%2245.0%22%20r%3D%222.6%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.42%22%2F%3E%3Ccircle%20cx%3D%2227.0%22%20cy%3D%2263.0%22%20r%3D%222.6%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.42%22%2F%3E%3Ccircle%20cx%3D%2227.0%22%20cy%3D%2281.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2227.0%22%20cy%3D%2299.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2227.0%22%20cy%3D%22117.0%22%20r%3D%222.6%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.42%22%2F%3E%3Ccircle%20cx%3D%2227.0%22%20cy%3D%22135.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2245.0%22%20cy%3D%229.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2245.0%22%20cy%3D%2227.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2245.0%22%20cy%3D%2245.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2245.0%22%20cy%3D%2263.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2245.0%22%20cy%3D%2281.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2245.0%22%20cy%3D%2299.0%22%20r%3D%223.4%22%20fill%3D%22%232e9dff%22%20fill-opacity%3D%220.55%22%2F%3E%3Ccircle%20cx%3D%2245.0%22%20cy%3D%22117.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2245.0%22%20cy%3D%22135.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2263.0%22%20cy%3D%229.0%22%20r%3D%222.6%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.42%22%2F%3E%3Ccircle%20cx%3D%2263.0%22%20cy%3D%2227.0%22%20r%3D%222.6%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.42%22%2F%3E%3Ccircle%20cx%3D%2263.0%22%20cy%3D%2245.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2263.0%22%20cy%3D%2263.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2263.0%22%20cy%3D%2281.0%22%20r%3D%222.6%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.42%22%2F%3E%3Ccircle%20cx%3D%2263.0%22%20cy%3D%2299.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2263.0%22%20cy%3D%22117.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2263.0%22%20cy%3D%22135.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2281.0%22%20cy%3D%229.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2281.0%22%20cy%3D%2227.0%22%20r%3D%222.6%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.42%22%2F%3E%3Ccircle%20cx%3D%2281.0%22%20cy%3D%2245.0%22%20r%3D%223.4%22%20fill%3D%22%232e9dff%22%20fill-opacity%3D%220.55%22%2F%3E%3Ccircle%20cx%3D%2281.0%22%20cy%3D%2263.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2281.0%22%20cy%3D%2281.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2281.0%22%20cy%3D%2299.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2281.0%22%20cy%3D%22117.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2281.0%22%20cy%3D%22135.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2299.0%22%20cy%3D%229.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2299.0%22%20cy%3D%2227.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2299.0%22%20cy%3D%2245.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2299.0%22%20cy%3D%2263.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2299.0%22%20cy%3D%2281.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2299.0%22%20cy%3D%2299.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2299.0%22%20cy%3D%22117.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%2299.0%22%20cy%3D%22135.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%22117.0%22%20cy%3D%229.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%22117.0%22%20cy%3D%2227.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%22117.0%22%20cy%3D%2245.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%22117.0%22%20cy%3D%2263.0%22%20r%3D%222.6%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.42%22%2F%3E%3Ccircle%20cx%3D%22117.0%22%20cy%3D%2281.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%22117.0%22%20cy%3D%2299.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%22117.0%22%20cy%3D%22117.0%22%20r%3D%222.6%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.42%22%2F%3E%3Ccircle%20cx%3D%22117.0%22%20cy%3D%22135.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%22135.0%22%20cy%3D%229.0%22%20r%3D%223.4%22%20fill%3D%22%232e9dff%22%20fill-opacity%3D%220.55%22%2F%3E%3Ccircle%20cx%3D%22135.0%22%20cy%3D%2227.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%22135.0%22%20cy%3D%2245.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%22135.0%22%20cy%3D%2263.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%22135.0%22%20cy%3D%2281.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%22135.0%22%20cy%3D%2299.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%22135.0%22%20cy%3D%22117.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3Ccircle%20cx%3D%22135.0%22%20cy%3D%22135.0%22%20r%3D%222%22%20fill%3D%22%23a9cbef%22%20fill-opacity%3D%220.24%22%2F%3E%3C%2Fsvg%3E");
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 45%, transparent 96%);
          mask-image: linear-gradient(to bottom, #000 0%, #000 45%, transparent 96%);
}

.hero__inner { position: relative; z-index: 1; }

.hero__name {
  color: var(--bg);
  font-size: calc(var(--title-max) - (var(--title-max) - var(--title-min)) * var(--p));
  letter-spacing: -0.015em;
}

.hero__tagline {
  color: #c7d2db;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.02em;
  margin-top: 6px;
  opacity: calc(1 - var(--p) * 1.6);
  height: calc((1 - var(--p)) * 22px);
  overflow: hidden;
}


/* ============================================================
   Nav — a row of file-folder tabs
   ============================================================ */
.tabs {
  display: flex;
  align-items: flex-end;
  height: 46px;
  gap: 2px;
  width: 66%;
  max-width: 1080px;
  margin-inline: auto;
}

.tab {
  flex: 1;
  appearance: none;
  border: 0;
  margin: 0;
  padding: 9px 4px 0;
  height: 32px;
  font-family: var(--font-ui);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  background: var(--tab-bg);
  color: var(--tab-fg);
  clip-path: polygon(12px 0, calc(100% - 12px) 0, 100% 100%, 0 100%);
  transition: height 0.16s ease, background 0.16s ease, color 0.16s ease, filter 0.16s ease;
}

.tab[data-tab="home"]     { --tab-bg: var(--tab-neutral); --tab-fg: var(--ink); }
.tab[data-tab="projects"] { --tab-bg: var(--accent-1); --tab-fg: var(--accent-1-dark); }
.tab[data-tab="about"]    { --tab-bg: var(--accent-2); --tab-fg: var(--accent-2-dark); }
.tab[data-tab="contact"]  { --tab-bg: var(--accent-3); --tab-fg: var(--accent-3-dark); }

/* The pulled-forward folder — and the same look while a tab is mid-flip. */
.tab.is-active,
.tab.is-flipping {
  height: 41px;
  background: var(--bg);
  color: var(--ink);
}
.tab.is-active { filter: drop-shadow(0 3px 7px rgba(0, 0, 0, 0.28)); }

.tab:focus-visible { outline-offset: -3px; }

/* Grows in lockstep with the shrink so content keeps a constant gap
   below the header's live bottom edge, then freezes. */
#headerSpacer { height: calc(var(--base-buffer) + var(--shrink-px, 0px)); }


/* ============================================================
   Sections
   ============================================================ */
.section { padding-block: 8px 88px; }
.section[hidden] { display: none; }

.eyebrow {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 10px;
}

.section__title { font-size: 34px; margin-bottom: 28px; letter-spacing: -0.01em; }

.lede {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.35;
  max-width: 26ch;
  margin-bottom: 44px;
}

.prose { max-width: 62ch; color: var(--ink-soft); }
.prose p + p { margin-top: 1em; }

.empty { color: var(--ink-soft); font-size: 14px; }


/* ---- Home: focus panels ---- */
.panel-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.panel {
  background: var(--surface);
  border-top: 3px solid var(--cat-neon);
  box-shadow: var(--lift-1);
  padding: 20px;
}

.panel__label {
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cat-dark);
  margin-bottom: 8px;
}
.panel__title { font-size: 19px; margin-bottom: 8px; }
.panel__text { font-size: 13.5px; color: var(--ink-soft); }


/* ---- Home: callout ---- */
.callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  background: var(--ink);
  padding: 22px 26px;
}
.callout__text { color: #c7d2db; font-size: 14px; }


/* ---- Projects: legend ---- */
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  list-style: none;
  margin: 0 0 24px;
  padding: 12px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.legend__item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.legend__swatch {
  width: 12px; height: 12px;
  border-radius: 3px;
  background: var(--cat);
  box-shadow: inset 0 0 0 2px var(--cat-neon);
}


/* ============================================================
   Project cards — sharp rectangles with viewfinder brackets
   ============================================================ */
.card-stack { display: flex; flex-direction: column; gap: 28px; }

.card {
  position: relative;
  background: var(--surface);
  box-shadow: var(--lift-1);
  padding: 30px 32px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover { box-shadow: var(--lift-2); }

.card--has-media { grid-template-columns: minmax(0, 1fr) 260px; }

/* L-brackets, opposite corners */
.card::before,
.card::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid var(--cat-neon);
}
.card::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.card::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.card__category {
  display: inline-block;
  background: var(--cat);
  color: var(--cat-dark);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.card__title { font-size: 24px; margin-bottom: 4px; letter-spacing: -0.01em; }

.card__subtitle {
  font-size: 14px;
  font-weight: 500;
  color: var(--cat-dark);
  margin-bottom: 12px;
}

.card__body { font-size: 14.5px; color: var(--ink-soft); max-width: 62ch; }

.card__media { margin: 0; }
.card__media img {
  width: 100%;
  border-radius: 8px;
  background: var(--bg);
}

.btn--card { margin-top: 20px; }


/* ============================================================
   Buttons — pressable, with a glint on click
   ============================================================ */
.btn {
  --cat: var(--accent-3);
  --cat-dark: var(--accent-3-dark);
  --cat-neon: var(--accent-3-neon);
  position: relative;
  display: inline-flex;
  align-items: center;
  overflow: hidden;
  appearance: none;
  border: 0;
  border-radius: 8px;
  background: var(--cat);
  color: var(--cat-dark);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 11px 20px;
  cursor: pointer;
  box-shadow: 0 3px 0 var(--cat-dark), 0 5px 12px rgba(62, 76, 89, 0.22);
  transition: transform 0.14s ease, box-shadow 0.14s ease;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 0 var(--cat-dark), 0 10px 20px rgba(62, 76, 89, 0.28);
}
.btn:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 var(--cat-dark), 0 2px 6px rgba(62, 76, 89, 0.24);
}

.btn__label { position: relative; z-index: 1; }

.btn__glint {
  position: absolute;
  top: -30%;
  left: -45%;
  width: 32%;
  height: 160%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.9), transparent);
  transform: skewX(-22deg);
  opacity: 0;
  pointer-events: none;
}
.btn.is-glinting .btn__glint { animation: glint 0.55s ease-out; }

@keyframes glint {
  from { left: -45%; opacity: 1; }
  to   { left: 125%; opacity: 0; }
}


/* ============================================================
   About — spec table
   ============================================================ */
.spec { margin-top: 36px; border-top: 1px solid var(--rule); }
.spec__row {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}
.spec__key {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding-top: 3px;
}
.spec__val { font-size: 14.5px; }


/* ============================================================
   Contact
   ============================================================ */
.contact {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

.contact__portrait {
  border-radius: 12px;
  box-shadow: var(--lift-1);
  background: var(--surface);
}

.contact__links { display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }

.contact__row {
  display: grid;
  grid-template-columns: 22px 90px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  width: 100%;
  background: var(--surface);
  box-shadow: var(--lift-1);
  padding: 14px 18px;
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.14s ease, box-shadow 0.14s ease;
}
.contact__row:hover { transform: translateY(-2px); box-shadow: var(--lift-2); }

.contact__icon {
  width: 22px; height: 22px;
  fill: none;
  stroke: var(--accent-3-dark);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.contact__key {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.contact__val { font-size: 14.5px; overflow-wrap: anywhere; }

.btn--share {
  --cat: var(--accent-1);
  --cat-dark: var(--accent-1-dark);
  margin-top: 8px;
}


/* ---- Share panel ---- */
.share-overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(62, 76, 89, 0.62);
}
.share-overlay[hidden] { display: none; }

.share-panel {
  position: relative;
  background: var(--surface);
  box-shadow: 0 20px 50px rgba(31, 40, 51, 0.4);
  padding: 28px 32px 24px;
  text-align: center;
}
.share-panel::before,
.share-panel::after {
  content: '';
  position: absolute;
  width: 20px; height: 20px;
  border: 2px solid var(--accent-1-neon);
}
.share-panel::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.share-panel::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.share-panel__close {
  position: absolute;
  top: 6px; right: 10px;
  background: none; border: 0;
  font-size: 22px; line-height: 1;
  color: var(--ink-soft);
  cursor: pointer;
}
.share-panel__qr { margin: 12px auto 14px; border-radius: 6px; }
.share-panel__url { font-size: 12.5px; color: var(--ink-soft); letter-spacing: 0.02em; }


/* ============================================================
   Footer
   ============================================================ */
.site-footer { border-top: 1px solid var(--rule); padding: 22px 0 34px; }
.site-footer__text { font-size: 11.5px; letter-spacing: 0.08em; color: var(--ink-soft); }


/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1100px) {
  .shell { width: 100%; padding-inline: 20px; }
  .tabs { width: 100%; }
}

@media (max-width: 820px) {
  :root { --header-max: 190px; --title-max: 36px; }
  .panel-row { grid-template-columns: 1fr; }
  .card--has-media { grid-template-columns: minmax(0, 1fr); }
  .card__media img { max-height: 240px; object-fit: cover; }
  .contact { grid-template-columns: 1fr; gap: 24px; }
  .contact__row { grid-template-columns: 22px minmax(0, 1fr); }
  .contact__key { display: none; }
  .spec__row { grid-template-columns: 1fr; gap: 4px; }
  .card { padding: 24px 22px; }
  .tab { font-size: 11px; letter-spacing: 0.04em; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}