:root {
  --page-bg: hsl(250, 12%, 6%);
  --text-primary: hsl(250, 12%, 90%);
  --text-secondary: hsl(250, 12%, 82%);
  --surface: hsl(250, 12%, 12%);
  --surface-hover: hsl(250, 12%, 18%);
  --surface-border: hsl(250, 12%, 30%);
  --accent: #8f7cff;
  --accent-hover: #a596ff;
  --icon-secondary: #66f859;
  --focus-ring: #5cf5db;
  --button-primary-text: #18161f;
  --button-muted-text: hsl(250, 12%, 90%);
  --shadow-soft: none;
}

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

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--text-primary);
  background: var(--page-bg);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

h1,
p {
  margin-top: 0;
}

.linktree-shell {
  min-height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2.5rem 1rem;
}

.profile-card {
  width: 100%;
  max-width: 480px;
  text-align: center;
}

.profile-avatar {
  width: 112px;
  height: 112px;
  margin: 0 auto 1.25rem;
  border: 0;
  border-radius: 999px;
  object-fit: cover;
  box-shadow: 0 0 0 2px rgba(115, 89, 248, 0.4), 0 0 0 4px var(--page-bg);
}

.profile-card h1 {
  margin-bottom: -0.1rem;
  text-align: center;
  font-size: 1.5rem;
  line-height: 2rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.profile-subtitle {
  margin-top: 0;
  color: var(--accent);
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.profile-bio {
  max-width: 360px;
  margin: 0.55rem auto 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.625;
}

.links-stack {
  display: grid;
  width: 100%;
  gap: 0.75rem;
}

.links-stack-primary {
  margin-top: 2rem;
}

.links-stack-secondary {
  margin-top: 0.75rem;
}

.button.button-linktree {
  display: block;
  width: 100%;
  height: auto;
  text-align: left;
  vertical-align: middle;
  white-space: normal;
  margin-bottom: 0;
  padding: 1rem 1.25rem;
  border: 1px solid var(--surface-border);
  border-radius: 0.75rem;
  color: var(--button-muted-text);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  outline: none;
  transition:
    transform 140ms ease,
    background 140ms ease,
    box-shadow 140ms ease,
    border-color 140ms ease;
}

.button.button-linktree:hover,
.button.button-linktree:focus {
  transform: scale(1.02);
  color: var(--button-muted-text);
  background: var(--surface-hover);
  border-color: var(--icon-secondary);
  box-shadow: none;
}

.button.button-linktree-primary {
  color: var(--button-primary-text);
  background: var(--accent);
  border-color: var(--accent);
}

.button.button-linktree-primary:hover,
.button.button-linktree-primary:focus {
  color: var(--button-primary-text);
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.button-linktree-main {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-align: left;
}

.button.button-linktree .icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  padding: 0;
  opacity: 0.95;
}

.linktree-copy {
  display: block;
  width: 100%;
}

.linktree-label {
  display: block;
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.button.button-linktree:not(.button-linktree-primary) .icon {
  filter: brightness(0) saturate(100%) invert(79%) sepia(69%) saturate(560%)
    hue-rotate(53deg) brightness(103%) contrast(95%);
}

.button.button-linktree:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

@media (max-width: 640px) {
  .linktree-shell {
    padding: 2.5rem 1rem;
  }

  .profile-card {
    max-width: 480px;
  }
}

@media (min-width: 640px) {
  .linktree-shell {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  .profile-card h1 {
    font-size: 1.875rem;
    line-height: 2.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}