:root {
  color-scheme: light;
  --bg: #f6faf5;
  --text: #10291c;
  --text-dim: rgb(16 41 28 / 0.74);
  --shade: 20 60 35; /* rgb triplet for green-tinted shadows */
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI Variable", "Segoe UI", system-ui, sans-serif;
}

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

body {
  margin: 0;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: max(24px, env(safe-area-inset-top)) 16px max(24px, env(safe-area-inset-bottom));
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.5 var(--font);
  -webkit-font-smoothing: antialiased;
}

#background {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

/* ---------- Liquid glass ---------- */

/* Fallback (no WebGL): classic frosted glass. */
.glass {
  position: relative;
  background: linear-gradient(160deg, rgb(255 255 255 / 0.6), rgb(255 255 255 / 0.3) 55%, rgb(255 255 255 / 0.45));
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  box-shadow:
    inset 0 1px 1px rgb(255 255 255 / 0.95),
    inset 0 -1px 1px rgb(255 255 255 / 0.5),
    inset 0 0 18px rgb(255 255 255 / 0.25),
    0 20px 50px -18px rgb(var(--shade) / 0.45),
    0 2px 6px rgb(var(--shade) / 0.12);
}

/* With WebGL, the background canvas refracts and frosts what's under each
   lens, so the glass itself stays nearly clear. */
.has-lens .glass {
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  background: linear-gradient(160deg, rgb(255 255 255 / 0.3), rgb(255 255 255 / 0.08) 55%, rgb(255 255 255 / 0.18));
}

/* Text and buttons sit on denser glass so they stay readable over the pattern. */
.intro, .has-lens .intro {
  background: linear-gradient(160deg, rgb(255 255 255 / 0.72), rgb(255 255 255 / 0.58));
  box-shadow: inset 0 1px 1px rgb(255 255 255 / 0.9), 0 4px 16px -6px rgb(var(--shade) / 0.25);
}

/* Fixed sheen over a base color, so hover can transition the color alone
   (gradients can't be transitioned and would flash clear). */
.pill, .has-lens .pill {
  background: linear-gradient(160deg, rgb(255 255 255 / 0.5), transparent 70%) rgb(255 255 255 / 0.68);
}

.pill:hover, .has-lens .pill:hover {
  background-color: rgb(255 255 255 / 0.9);
}

/* Hairline rim that catches light at opposite corners. */
.glass::before {
  content: "";
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(135deg, rgb(255 255 255 / 0.95), rgb(255 255 255 / 0.3) 30%, rgb(var(--shade) / 0.14) 65%, rgb(255 255 255 / 0.75));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

@media (prefers-reduced-transparency: reduce) {
  .glass, .has-lens .glass {
    background: rgb(255 255 255 / 0.94);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}

/* ---------- Card ---------- */

.card {
  width: min(100%, 420px);
  padding: 40px 28px 32px;
  border-radius: 36px;
  text-align: center;
  text-shadow: 0 1px 1px rgb(255 255 255 / 0.6);
  animation: settle 0.9s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

/* Fade the content rather than the card, so the lens and its glass stay in step. */
.card > * { animation: fade 0.9s ease both; }

/* Specular sheen that follows the pointer (set from JS). */
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(240px circle at var(--mx, 30%) var(--my, 0%), rgb(255 255 255 / 0.3), transparent 70%);
}

.avatar {
  display: block;
  width: 128px;
  height: 128px;
  margin: 0 auto;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgb(255 255 255 / 0.75);
  box-shadow: 0 8px 24px rgb(var(--shade) / 0.3);
}

/* Keep click-drag from selecting or dragging the photo and buttons. */
.avatar, .pill {
  -webkit-user-select: none;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
}

.intro {
  margin-top: 20px;
  padding: 18px 20px 20px;
  border-radius: 24px;
}

h1 {
  margin: 0 0 2px;
  font-size: 30px;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.role {
  margin: 0;
  color: var(--text-dim);
  font-weight: 500;
}

.bio {
  max-width: 30ch;
  margin: 16px auto 0;
  color: var(--text-dim);
  font-size: 15px;
}

.links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 28px;
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 16px;
  border: 0;
  border-radius: 999px;
  color: var(--text);
  font: inherit;
  font-size: 15px;
  font-weight: 550;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.pill svg {
  width: 18px;
  height: 18px;
  flex: none;
}

.pill:hover { transform: translateY(-1px); }

.pill:active { transform: scale(0.97); }

.pill:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 3px;
}

/* "Copied!" popup above the email button. */
.tip {
  position: absolute;
  z-index: 1;
  bottom: calc(100% + 10px);
  left: 50%;
  translate: -50% 4px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgb(16 41 28 / 0.9);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  text-shadow: none;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, translate 0.2s ease;
}

.tip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  translate: -50% 0;
  border: 6px solid transparent;
  border-top-color: rgb(16 41 28 / 0.9);
}

.tip.show {
  opacity: 1;
  translate: -50% 0;
}

/* ---------- Dev pane (localhost or ?dev only) ---------- */

.dev-pane {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  left: max(12px, env(safe-area-inset-left));
  z-index: 10;
  display: grid;
  gap: 6px;
  padding: 10px 14px 12px;
  border-radius: 14px;
  background: rgb(255 255 255 / 0.92);
  box-shadow: 0 6px 20px -8px rgb(var(--shade) / 0.4);
  font-size: 13px;
}

.dev-pane-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-right: -6px;
}

.dev-pane-close {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
}

.dev-pane-close svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
}

.dev-pane-close:hover { background: color-mix(in srgb, var(--text) 12%, transparent); color: var(--text); }

.dev-pane-close:focus-visible { outline: 2px solid var(--text); outline-offset: 1px; }

.dev-pane strong {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.dev-pane label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.dev-pane input { accent-color: #2b7a4b; margin: 0; }

.dev-pane .sub { padding-left: 22px; }

.dev-pane .slider {
  display: grid;
  grid-template-columns: 52px 110px 40px;
  gap: 8px;
  color: var(--text-dim);
}

.dev-pane .hint {
  color: var(--text-dim);
  font-size: 12px;
  font-style: italic;
}

.dev-pane output {
  font-variant-numeric: tabular-nums;
  text-align: right;
}

/* ---------- Dark mode ---------- */
/* Same glass, inverted: dark frosted panels over a deep green background
   (the shader picks its own dark palette). Kept together so it overrides the
   light rules above. */

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0b1a12;
    --text: #e8f3eb;
    --text-dim: rgb(232 243 235 / 0.72);
    --shade: 0 0 0;
  }

  .glass {
    background: linear-gradient(160deg, rgb(20 44 30 / 0.6), rgb(12 28 19 / 0.45));
    box-shadow:
      inset 0 1px 1px rgb(255 255 255 / 0.16),
      inset 0 -1px 1px rgb(255 255 255 / 0.05),
      0 20px 50px -18px rgb(0 0 0 / 0.6),
      0 2px 6px rgb(0 0 0 / 0.3);
  }

  .has-lens .glass {
    background: linear-gradient(160deg, rgb(255 255 255 / 0.1), rgb(255 255 255 / 0.02) 55%, rgb(255 255 255 / 0.06));
  }

  .intro, .has-lens .intro {
    background: linear-gradient(160deg, rgb(16 36 25 / 0.76), rgb(12 28 19 / 0.64));
    box-shadow: inset 0 1px 1px rgb(255 255 255 / 0.12), 0 4px 16px -6px rgb(0 0 0 / 0.5);
  }

  .pill, .has-lens .pill {
    background: linear-gradient(160deg, rgb(255 255 255 / 0.1), transparent 70%) rgb(18 40 27 / 0.8);
  }

  .pill:hover, .has-lens .pill:hover {
    background-color: rgb(30 64 44 / 0.92);
  }

  .glass::before {
    background: linear-gradient(135deg, rgb(255 255 255 / 0.35), rgb(255 255 255 / 0.08) 30%, rgb(0 0 0 / 0.25) 65%, rgb(255 255 255 / 0.2));
  }

  .card { text-shadow: 0 1px 1px rgb(0 0 0 / 0.45); }

  .card::after {
    background: radial-gradient(240px circle at var(--mx, 30%) var(--my, 0%), rgb(255 255 255 / 0.08), transparent 70%);
  }

  .avatar { border-color: rgb(255 255 255 / 0.25); }

  .tip { background: rgb(232 243 235 / 0.94); color: #0b1a12; }
  .tip::after { border-top-color: rgb(232 243 235 / 0.94); }

  .dev-pane { background: rgb(16 32 23 / 0.94); }
}

@media (prefers-color-scheme: dark) and (prefers-reduced-transparency: reduce) {
  .glass, .has-lens .glass { background: rgb(16 34 24 / 0.95); }
}

@keyframes settle {
  from { transform: translateY(12px) scale(0.98); }
}

@keyframes fade {
  from { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .card, .card > * { animation: none; }
  .pill, .tip { transition: none; }
}