*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #F7F7F8;
  --card-bg: #FFFFFF;
  --border: #E4E4E7;
  --text-primary: #18181B;
  --text-secondary: #71717A;
  --accent: #2563EB;
  --accent-fg: #FFFFFF;
  --tab-active-bg: #2563EB;
  --tab-active-fg: #FFFFFF;
  --tab-inactive-bg: #FFFFFF;
  --tab-inactive-fg: #52525B;
  --avatar-bg: #E4E4E7;
  --initials-bg: #DBEAFE;
  --initials-fg: #1D4ED8;
  --radius-card: 14px;
  --radius-tab: 8px;
  --radius-avatar: 50%;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 36px 16px 48px;
}

/* ── Container ── */
.bio-wrapper {
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
}

/* ── Profile ── */
.profile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.avatar-wrap {
  width: 88px;
  height: 88px;
  border-radius: var(--radius-avatar);
  overflow: hidden;
  background: var(--avatar-bg);
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,.08);
  border: 3px solid #FFFFFF;
}

.avatar-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.avatar-placeholder {
  width: 100%;
  height: 100%;
  background: var(--avatar-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.bio-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  line-height: 1.3;
}

.bio-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.5;
  max-width: 360px;
}

/* ── Social icons ── */
.socials {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 4px;
}

.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text-secondary);
  text-decoration: none;
  transition: border-color .15s, color .15s, background .15s, transform .15s;
  box-shadow: var(--shadow);
}

.social-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: #EFF6FF;
}

.social-btn svg {
  width: 17px;
  height: 17px;
  display: block;
}

/* ── Section Title (Pinned Link) ── */
.section-title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
  padding: 0 4px;
}

.section-title svg {
  color: var(--accent);
  flex-shrink: 0;
}

.pinned-section {
  margin-bottom: 24px;
}

.pinned-list {
  margin-bottom: 0 !important;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--card-bg);
  box-shadow: var(--shadow);
}

/* ── Tabs ── */
.tabs-bar {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  padding: 2px 2px 6px;
}
.tabs-bar::-webkit-scrollbar { display: none; }

.tabs-bar-top {
  margin-bottom: 10px;
}

.tabs-bar-bottom {
  margin-top: 12px;
  margin-bottom: 28px;
}

.tab-btn {
  flex-shrink: 0;
  padding: 7px 15px;
  border-radius: var(--radius-tab);
  border: 1px solid var(--border);
  background: var(--tab-inactive-bg);
  color: var(--tab-inactive-fg);
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s, box-shadow .15s;
  white-space: nowrap;
  box-shadow: var(--shadow);
}

.tab-btn:hover {
  border-color: #cbd5e1;
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--tab-active-bg);
  color: var(--tab-active-fg);
  border-color: var(--tab-active-bg);
  box-shadow: 0 2px 6px rgba(37,99,235,.3);
}

/* ── Link list ── */
.link-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.link-list.standalone {
  margin-bottom: 32px;
}

.link-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 10px;
  text-decoration: none;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
  transition: background .12s, transform .12s;
}

.link-item:last-child { border-bottom: none; }

.link-item:hover {
  background: #F8FAFC;
}

.link-thumb {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--border);
  background: #F4F4F5;
  display: flex;
  align-items: center;
  justify-content: center;
}

.link-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.link-initials {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--initials-bg);
  color: var(--initials-fg);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
}

.link-label {
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.4;
  flex: 1;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.link-arrow {
  color: var(--text-secondary);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  transition: transform .15s, color .15s;
}

.link-item:hover .link-arrow {
  color: var(--accent);
}

/* ── Footer ── */
.bio-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 12px;
}

/* ── States ── */
.state-loading,
.state-error {
  padding: 48px 24px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow);
}

.state-error { color: #EF4444; }

.spinner {
  width: 26px;
  height: 26px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  margin: 0 auto 12px;
}

@keyframes spin { to { transform: rotate(360deg); } }