@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

:root {
  --bg: #f1f5f9;
  --bg-subtle: #e8edf4;
  --surface: #ffffff;
  --surface-hover: #f8fafc;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-muted: #eef2ff;
  --on-accent: #ffffff;
  --success: #059669;
  --success-bg: #ecfdf5;
  --warn: #d97706;
  --warn-bg: #fffbeb;
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --event: #ca8a04;
  --event-bg: #fef9c3;
  --event-border: #eab308;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 14px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.1);
  --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "Consolas", monospace;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 1.5rem 1.25rem 3rem;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(79, 70, 229, 0.08), transparent),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  max-width: 960px;
  margin-inline: auto;
}

body.tool-page {
  max-width: 960px;
}

a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.site-nav a { font-weight: 600; }
.nav-sep { opacity: 0.4; }
.nav-current { color: var(--text); font-weight: 600; }

header h1 {
  margin: 0 0 0.35rem;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.subtitle {
  color: var(--muted);
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
}

/* Hub */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin-top: 0.5rem;
}

.tool-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.4rem;
  color: inherit;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.18s, box-shadow 0.18s, transform 0.18s;
}

.tool-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
  text-decoration: none;
  color: inherit;
}

.tool-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.tool-card p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.55;
}

.tool-card .tool-tag {
  display: inline-flex;
  align-items: center;
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 600;
}

/* Shared components */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.35rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
}

.panel h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
}

.field-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: inherit;
  text-decoration: none;
  line-height: 1.3;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
  box-shadow: var(--shadow-sm);
}

.btn:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--surface-hover);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}

.btn.primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.job-banner {
  background: var(--accent-muted);
  border: 1px solid #c7d2fe;
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin-bottom: 1rem;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  font-size: 0.9rem;
  color: var(--text);
}

.job-banner.hidden { display: none; }
.job-banner.error {
  background: var(--danger-bg);
  border-color: #fecaca;
  color: var(--danger);
}

.banner {
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.banner.error {
  background: var(--danger-bg);
  border: 1px solid #fecaca;
  color: var(--danger);
}

.banner.warn {
  background: var(--warn-bg);
  border: 1px solid #fde68a;
  color: #92400e;
}

.hidden { display: none !important; }
.hint { color: var(--muted); font-size: 0.85rem; margin: 0.35rem 0 0; }
.note { margin-bottom: 0.75rem; }
.muted-sm { color: var(--muted); font-size: 0.8rem; }

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--accent);
  background: var(--accent-muted);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

input, select, textarea {
  font-family: inherit;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}