:root {
  color-scheme: light dark;
  --stack-gap: clamp(0.75rem, 2vw, 1.35rem);
  --btn-size: clamp(44px, 6.5vw, 56px);
  --avatar-size: 150px;
  --ring: 2px;
  --ring-offset: 3px;
}

/* Basic reset */
* { box-sizing: border-box; }
html, body {
  min-height: 100svh;
  background: #f3f6fb;
}
body { margin: 0; }

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.4;
  transition: background 0.8s;
  color: CanvasText;
}

/* Skip link (keyboard / SR users) */
.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  padding: 10px 12px;
  border-radius: 999px;
  background: Canvas;
  color: CanvasText;
  border: 1px solid currentColor;
  transform: translateY(-200%);
}
.skip-link:focus {
  transform: translateY(0);
  outline: var(--ring) solid currentColor;
  outline-offset: var(--ring-offset);
}

.container {
  min-height: 100svh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: calc(var(--stack-gap) * 0.8);
  padding:
    max(32px, env(safe-area-inset-top))
    max(32px, env(safe-area-inset-right))
    max(32px, env(safe-area-inset-bottom))
    max(32px, env(safe-area-inset-left));
}

/* Profile stack */
.profile {
  display: grid;
  gap: calc(var(--stack-gap) * 1.1);
  justify-items: center;
  text-align: center;
}

.profile-details {
  display: grid;
  gap: 10px;
  justify-items: center;
  text-align: center;
}

.avatar-wrap {
  position: relative;
  width: var(--avatar-size);
  height: var(--avatar-size);
  display: grid;
  place-items: center;
}

.avatar-wrap::before {
  --glow-opacity: 0.5;
  content: "";
  position: absolute;
  inset: -12px;
  border-radius: 999px;
  background: conic-gradient(
    #43a047 0%,
    #f4c20d 16%,
    #f57c00 32%,
    #e53935 50%,
    #8e24aa 68%,
    #1e88e5 84%,
    #43a047 100%
  );
  --glow-blur-min: 14px;
  --glow-blur-max: 18px;
  filter: blur(var(--glow-blur-min));
  mix-blend-mode: plus-darker;
  opacity: 0;
  transform: scale(0);
  rotate: 0deg;
  transition:
    transform 900ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 700ms cubic-bezier(0.2, 0.8, 0.3, 1);
  animation:
    glow-rotate 7s ease-in-out infinite,
    glow-breathe 3.8s ease-in-out infinite;
  z-index: 0;
}

.avatar-wrap:hover::before,
.avatar-wrap:focus-within::before {
  opacity: var(--glow-opacity);
  transform: scale(1);
}

.avatar {
  width: var(--avatar-size);
  height: var(--avatar-size);
  border-radius: 999px;
  object-fit: cover;
  display: block;
  margin: 0;
  border: 1px solid color-mix(in oklab, CanvasText 24%, transparent);
  transition: box-shadow 0.3s, border-color 0.3s;
  box-shadow: 0 4px 18px 0 rgba(0,0,0,0.08);
  position: relative;
  z-index: 1;
}

.avatar:hover, .avatar:focus {
  box-shadow: 0 8px 32px 0 rgba(30, 60, 140, 0.13);
  border-color: color-mix(in oklab, CanvasText 36%, transparent);
}

.title {
  margin: 0;
  font-size: 36px;
  letter-spacing: -0.02em;
  color: inherit;
}

.links {
  display: flex;
  justify-content: center;
  gap: clamp(0.6rem, 1.1vw, 0.85rem);
  margin: 0;
  align-items: center;
  flex-wrap: wrap;
}

.social {
  display: flex;
  justify-content: center;
  margin-block-start: calc(var(--stack-gap) * 1.15);
}

.profile-details .social {
  margin-block-start: 0;
}

/* Links are already keyboard accessible; add strong focus indicator */
.icon-btn {
  width: var(--btn-size);
  height: var(--btn-size);
  min-width: 44px;
  min-height: 44px;
  flex: 0 0 auto;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  border: 0;
  background: transparent;
  transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.25s;
  position: relative;
  isolation: isolate;
}

.icon-btn::before {
  --glow-opacity: 0.55;
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--btn-size);
  height: var(--btn-size);
  border-radius: 50%;
  background: var(--glow-gradient, transparent);
  --glow-blur-min: 8px;
  --glow-blur-max: 12px;
  filter: blur(var(--glow-blur-min));
  mix-blend-mode: plus-darker;
  opacity: 0;
  translate: -50% -50%;
  scale: 0;
  rotate: 0deg;
  transition:
    scale 900ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 700ms cubic-bezier(0.2, 0.8, 0.3, 1);
  animation:
    glow-rotate 5.5s ease-in-out infinite,
    glow-breathe 3.4s ease-in-out infinite;
  z-index: 0;
}

.icon-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: color-mix(in oklab, Canvas 88%, transparent);
  border: 1px solid color-mix(in oklab, CanvasText 22%, transparent);
  transition: background 0.25s ease, border-color 0.25s ease;
  z-index: 1;
}

.icon-btn:hover::before,
.icon-btn:focus-visible::before {
  opacity: var(--glow-opacity);
  scale: 1;
}

.icon-btn:hover {
  box-shadow: 0 2px 12px 0 rgba(30, 60, 140, 0.10);
  transform: translateY(-2px) scale(1.04);
}

.icon-btn:hover::after {
  background: color-mix(in oklab, Canvas 94%, #dbeafe 12%);
}

.icon-btn:active { transform: translateY(0px); }

.icon-btn:focus-visible {
  outline: var(--ring) solid #2563eb;
  outline-offset: var(--ring-offset);
}

.icon-btn svg {
  width: calc(var(--btn-size) * 0.58);
  height: calc(var(--btn-size) * 0.58);
  fill: currentColor;
  transition: transform 250ms cubic-bezier(0.22, 1, 0.36, 1), filter 250ms ease;
  will-change: transform;
  position: relative;
  z-index: 2;
}

.icon-label {
  display: none;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: inherit;
  position: relative;
  z-index: 2;
}

/* Visually-hidden text that still reads in VoiceOver */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.hint {
  margin: 0;
  font-size: 13px;
  opacity: 0.75;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
  .icon-btn:hover { transform: none; }
  .avatar-wrap::before { animation: none !important; }
  .icon-btn::before { animation: none !important; }
  .avatar-wrap:hover::before,
  .avatar-wrap:focus-within::before,
  .icon-btn:hover::before,
  .icon-btn:focus-visible::before {
    opacity: var(--glow-opacity);
    scale: 1;
  }
}

@media (max-width: 420px) {
  .links {
    flex-direction: column;
    width: min(280px, 92vw);
  }
  .icon-btn {
    width: 100%;
    height: 52px;
    padding: 0 18px;
    border-radius: 999px;
  }
  .icon-btn svg {
    width: 18px;
    height: 18px;
  }
  .icon-label {
    display: inline;
  }
  .icon-btn::before {
    opacity: 0 !important;
    scale: 0 !important;
    animation: none !important;
  }
}

@media (min-width: 720px) {
  .profile {
    grid-template-columns: auto 1fr;
    align-items: center;
    column-gap: calc(var(--stack-gap) * 1.8);
    text-align: start;
  }
  .profile-details {
    justify-items: start;
    text-align: start;
  }
  .links {
    justify-content: flex-start;
  }
  .social {
    justify-content: flex-start;
  }
  .icon-btn {
    width: auto;
    height: 44px;
    padding: 0 16px;
    border-radius: 999px;
  }
  .icon-btn svg {
    width: 18px;
    height: 18px;
  }
  .icon-label {
    display: inline;
  }
}
@media (hover: none) {
  .avatar-wrap::before {
    opacity: var(--glow-opacity);
    transform: scale(1);
    animation:
      glow-rotate 7s ease-in-out infinite,
      glow-breathe 3.8s ease-in-out infinite;
  }
}

@media (prefers-color-scheme: dark) {
  body {
    background: #1c222b;
    color: CanvasText;
  }
  html {
    background: #1c222b;
  }
  .avatar-wrap::before,
  .icon-btn::before {
    mix-blend-mode: plus-lighter;
  }
  .icon-btn::after {
    background: color-mix(in oklab, Canvas 78%, transparent);
    border-color: color-mix(in oklab, CanvasText 40%, transparent);
  }
  .icon-btn:hover::after {
    background: color-mix(in oklab, Canvas 86%, transparent);
  }
  .avatar {
    border-color: color-mix(in oklab, CanvasText 44%, transparent);
  }
}

@keyframes glow-rotate {
  from { rotate: 0deg; }
  to { rotate: 360deg; }
}

@keyframes glow-breathe {
  0% { filter: blur(var(--glow-blur-min)); }
  50% { filter: blur(var(--glow-blur-max)); }
  100% { filter: blur(var(--glow-blur-min)); }
}

.icon-btn--mastodon {
  color: #6363F6;
  --glow-gradient: conic-gradient(
    #6363F6 0%,
    #7a6cf7 35%,
    #513CC4 70%,
    #6363F6 100%
  );
}

.icon-btn--linkedin {
  color: #2D65BC;
  --glow-gradient: conic-gradient(
    #0a66c2 0%,
    #1f7ad8 40%,
    #2D65BC 70%,
    #0a66c2 100%
  );
}