:root {
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-text-secondary: #666666;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-border: #e5e7eb;
  --color-success: #059669;
  --color-error: #dc2626;
  --color-error-bg: #fef2f2;
  --color-error-border: #fecaca;
  --color-info-bg: #eff6ff;
  --color-info-text: #1e40af;
  --color-info-border: #bfdbfe;
  --color-skill-bg: #eff6ff;
  --color-network-bg: #ecfdf5;
  --color-bsky-bg: #e8f4fd;
  --color-bsky: #0085ff;
  --color-verified-bg: #dcfce7;
  --color-verified-text: #166534;
  --color-pending-bg: #fef3c7;
  --color-pending-text: #92400e;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
}

[data-theme="dark"] {
  --color-bg: #0f0f0f;
  --color-surface: #1a1a1a;
  --color-text: #e5e5e5;
  --color-text-secondary: #a3a3a3;
  --color-primary: #60a5fa;
  --color-primary-hover: #3b82f6;
  --color-border: #2e2e2e;
  --color-success: #34d399;
  --color-error: #f87171;
  --color-error-bg: #1c1111;
  --color-error-border: #7f1d1d;
  --color-info-bg: #111827;
  --color-info-text: #93c5fd;
  --color-info-border: #1e3a5f;
  --color-skill-bg: #172554;
  --color-network-bg: #052e16;
  --color-bsky-bg: #0c1929;
  --color-bsky: #60a5fa;
  --color-verified-bg: #052e16;
  --color-verified-text: #6ee7b7;
  --color-pending-bg: #1c1506;
  --color-pending-text: #fcd34d;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #0f0f0f;
    --color-surface: #1a1a1a;
    --color-text: #e5e5e5;
    --color-text-secondary: #a3a3a3;
    --color-primary: #60a5fa;
    --color-primary-hover: #3b82f6;
    --color-border: #2e2e2e;
    --color-success: #34d399;
    --color-error: #f87171;
    --color-error-bg: #1c1111;
    --color-error-border: #7f1d1d;
    --color-info-bg: #111827;
    --color-info-text: #93c5fd;
    --color-info-border: #1e3a5f;
    --color-skill-bg: #172554;
    --color-network-bg: #052e16;
    --color-bsky-bg: #0c1929;
    --color-bsky: #60a5fa;
    --color-verified-bg: #052e16;
    --color-verified-text: #6ee7b7;
    --color-pending-bg: #1c1506;
    --color-pending-text: #fcd34d;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
  }
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

.container { max-width: 800px; margin: 0 auto; padding: 0 1rem; }

/* Nav */
.nav {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand { font-weight: 700; font-size: 1.25rem; color: var(--color-primary); text-decoration: none; }
.nav-links { display: flex; gap: 1rem; align-items: center; }
.nav-links a { color: var(--color-text-secondary); text-decoration: none; font-size: 0.9rem; }
.nav-links a:hover { color: var(--color-primary); }

/* Theme toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.25rem 0.5rem;
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.theme-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-primary { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-hover); color: white; }
.btn-danger-text { color: var(--color-error); }

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.25rem; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: inherit;
  background: var(--color-surface);
  color: var(--color-text);
}
.form-group textarea { min-height: 80px; resize: vertical; }

/* Profile */
.profile-header { display: flex; gap: 1.5rem; align-items: flex-start; margin-bottom: 1.5rem; }
.profile-avatar { width: 80px; height: 80px; border-radius: 50%; background: var(--color-border); }
.profile-info h1 { font-size: 1.5rem; line-height: 1.2; }
.profile-info .headline { color: var(--color-text-secondary); }

/* Skills */
.skill-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: var(--color-skill-bg);
  color: var(--color-primary);
  border-radius: 999px;
  font-size: 0.8rem;
  margin: 0.15rem;
}

/* Vouch card */
.vouch-card { border-left: 3px solid var(--color-primary); }
.vouch-meta { font-size: 0.85rem; color: var(--color-text-secondary); }

/* Network badge */
.network-badge {
  display: inline-flex; align-items: center; gap: 0.25rem;
  background: var(--color-network-bg);
  color: var(--color-success);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Search */
.search-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
  background: var(--color-surface);
  color: var(--color-text);
}

/* Layout */
.page { padding: 2rem 0; }
.page-title { font-size: 1.5rem; margin-bottom: 1rem; }
.section { margin-bottom: 2rem; }
.section-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.75rem; }

/* Login */
.login-page {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 80vh; text-align: center;
}
.login-page h1 { font-size: 2rem; margin-bottom: 0.5rem; }
.login-page p { color: var(--color-text-secondary); margin-bottom: 2rem; max-width: 400px; }
.login-form { display: flex; gap: 0.5rem; }
.login-form input { width: 280px; }

/* Landing page */
.landing-hero {
  text-align: center;
  padding: 5rem 1rem 3rem;
  max-width: 640px;
  margin: 0 auto;
}
.landing-hero h1 { font-size: 2.5rem; margin-bottom: 1rem; line-height: 1.2; }
.landing-subtitle { color: var(--color-text-secondary); font-size: 1.1rem; margin-bottom: 2rem; max-width: 480px; margin-left: auto; margin-right: auto; }
.landing-hero .login-form { justify-content: center; }

.landing-section { max-width: 800px; margin: 0 auto 3rem; padding: 0 1rem; }
.landing-section-title { font-size: 1.4rem; font-weight: 700; text-align: center; margin-bottom: 1.5rem; }

.landing-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.landing-step { text-align: center; }
.landing-step h3 { margin-bottom: 0.5rem; }
.landing-step p { color: var(--color-text-secondary); font-size: 0.9rem; }
.landing-step-number {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem; border-radius: 50%;
  background: var(--color-primary); color: white;
  font-weight: 700; font-size: 0.9rem; margin-bottom: 0.75rem;
}

.landing-values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.landing-value h3 { margin-bottom: 0.5rem; }
.landing-value p { color: var(--color-text-secondary); font-size: 0.9rem; }

@media (max-width: 640px) {
  .landing-steps, .landing-values { grid-template-columns: 1fr; }
  .landing-hero { padding: 2.5rem 0.5rem 2rem; }
  .landing-hero h1 { font-size: 1.75rem; }
  .landing-subtitle { font-size: 1rem; }
  .login-form { flex-direction: column; width: 100%; }
  .login-form input { width: 100%; }
}

/* Dashboard */
.dashboard-greeting { margin-bottom: 1.5rem; }
.dashboard-greeting h1 { font-size: 1.5rem; }

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}
@media (max-width: 640px) { .dashboard-grid { grid-template-columns: 1fr; } }

.completeness-bar-track {
  width: 100%; height: 8px; background: var(--color-border);
  border-radius: 4px; overflow: hidden; margin-bottom: 0.5rem;
}
.completeness-bar-fill {
  height: 100%; background: var(--color-success);
  border-radius: 4px; transition: width 0.3s;
}
.completeness-nudges { list-style: none; margin-top: 0.5rem; }
.completeness-nudges li { padding: 0.25rem 0; }
.completeness-nudges a { color: var(--color-primary); text-decoration: none; font-size: 0.9rem; }
.completeness-nudges a:hover { text-decoration: underline; }

.activity-list { list-style: none; }
.activity-item { padding: 0.5rem 0; border-bottom: 1px solid var(--color-border); }
.activity-item:last-child { border-bottom: none; }

.quick-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1rem; }

/* Bluesky relationship tag */
.bsky-relationship-tag {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  background: var(--color-bsky-bg);
  color: var(--color-bsky);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
}

/* Credential verification badges */
.verified-badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  background: var(--color-verified-bg);
  color: var(--color-verified-text);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.pending-badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  background: var(--color-pending-bg);
  color: var(--color-pending-text);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* Credential type badge */
.credential-type-badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  background: var(--color-pending-bg);
  color: var(--color-pending-text);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
  margin-right: 0.35rem;
}

/* Info card */
.info-card {
  background: var(--color-info-bg);
  border-color: var(--color-info-border);
}
.info-card p { color: var(--color-info-text); }

/* Error card */
.error-card {
  background: var(--color-error-bg);
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

/* Error banner */
.error-banner {
  background: var(--color-error-bg);
  color: var(--color-error);
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-error-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.error-banner button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-error);
  font-size: 1.2rem;
}

/* Inline select (quick-vouch widget) */
.inline-select-link {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 2px;
  cursor: pointer;
  font-size: 0.9rem;
  background: none;
  border: none;
  padding: 0;
  font-family: inherit;
}
.inline-select-link:hover {
  text-decoration-style: solid;
}
.inline-select {
  font-size: 0.9rem;
  padding: 0.1rem 0.25rem;
  border: 1px solid var(--color-primary);
  border-radius: 4px;
  background: var(--color-surface);
  color: var(--color-text);
  font-family: inherit;
  width: auto;
}

/* Focus-visible outlines for keyboard navigation */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* Disabled button styles */
.btn:disabled,
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Skip-to-content link */
.skip-to-content {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 0.5rem 1rem;
  z-index: 100;
  text-decoration: none;
  font-size: 0.9rem;
}
.skip-to-content:focus {
  top: 0;
}

/* ---- Mobile responsive ---- */
@media (max-width: 640px) {
  .container { padding: 0 0.75rem; }

  /* Nav */
  .nav { padding: 0.5rem 0.75rem; gap: 0.5rem; }
  .nav-brand { font-size: 1.1rem; }
  .nav-links { gap: 0.5rem; }
  .nav-links a { font-size: 0.8rem; }
  .theme-toggle { font-size: 0.75rem; padding: 0.2rem 0.4rem; }

  /* Page */
  .page { padding: 1rem 0; }
  .page-title { font-size: 1.25rem; }
  .section { margin-bottom: 1.25rem; }
  .section-title { font-size: 1rem; }

  /* Cards */
  .card { padding: 1rem; margin-bottom: 0.75rem; }

  /* Profile header */
  .profile-header { gap: 1rem; margin-bottom: 1rem; }
  .profile-avatar { width: 56px; height: 56px; min-width: 56px; }
  .profile-avatar img { width: 56px !important; height: 56px !important; }
  .profile-info h1 { font-size: 1.2rem; }

  /* Buttons */
  .btn { padding: 0.4rem 0.75rem; font-size: 0.85rem; }
  .quick-actions { gap: 0.4rem; }
  .quick-actions .btn { font-size: 0.8rem; padding: 0.35rem 0.6rem; }

  /* Dashboard */
  .dashboard-greeting h1 { font-size: 1.25rem; }

  /* Vouch card actions */
  .vouch-card { padding: 1rem; }
  .vouch-card > div:first-child { flex-direction: column; gap: 0.5rem; }
}