:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --muted: #64748b;
  --accent: #3b82f6;
  --accent-dim: #eff6ff;
  --accent-border: #bfdbfe;
  --danger: #ef4444;
  --nav: #1e293b;
  --radius: 10px;
  --max-w: 680px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Nav ── */
nav {
  background: var(--nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  height: 50px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-logo {
  font-weight: 800;
  font-size: 1.15rem;
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.08em;
}

.nav-links a {
  color: #94a3b8;
  text-decoration: none;
  margin-left: 1.25rem;
  font-size: 0.875rem;
  transition: color 0.15s;
}

.nav-links a:hover { color: #fff; }

/* ── Layout ── */
main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

/* ── Page header ── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  gap: 0.75rem;
}

.page-header h1 { font-size: 1.25rem; font-weight: 700; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.45rem 0.875rem;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: opacity 0.15s, background 0.15s;
  white-space: nowrap;
  line-height: 1.4;
}

.btn:hover { opacity: 0.85; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-ghost { background: transparent; color: var(--muted); border-color: var(--border); }
.btn-ghost:hover { background: var(--border); opacity: 1; }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger-ghost { color: var(--danger); }
.btn-danger-ghost:hover { background: #fef2f2; border-color: var(--danger); opacity: 1; }
.btn-pinned { background: var(--accent-dim); color: var(--accent); border-color: var(--accent-border); }
.btn-sm { padding: 0.25rem 0.625rem; font-size: 0.8rem; }
.btn-full { width: 100%; justify-content: center; }

/* ── Forms ── */
.form-group { margin-bottom: 1.125rem; }

label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.375rem;
  color: var(--text);
}

input[type=text],
input[type=search],
input[type=password],
textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background: var(--card);
  outline: none;
  transition: border-color 0.15s;
}

input:focus, textarea:focus { border-color: var(--accent); }

textarea { resize: vertical; min-height: 220px; line-height: 1.65; }

.field-error { font-size: 0.8rem; color: var(--danger); margin-top: 0.25rem; }

.form-actions {
  display: flex;
  gap: 0.625rem;
  margin-top: 1.25rem;
}

/* ── Search box ── */
.search-box {
  margin-bottom: 1rem;
  padding: 0.6rem 0.875rem;
  font-size: 0.95rem;
}

/* ── Slip list cards ── */
.slip-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.875rem 1rem;
  margin-bottom: 0.5rem;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.slip-card:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(59,130,246,.1);
}

.slip-card h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.2rem; }
.slip-card .snippet { font-size: 0.825rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.slip-card .meta { font-size: 0.75rem; color: var(--muted); margin-top: 0.2rem; }

/* ── Slip detail ── */
.slip-breadcrumb { font-size: 0.8rem; color: var(--muted); }
.slip-breadcrumb a { color: var(--muted); text-decoration: none; }
.slip-breadcrumb a:hover { color: var(--accent); }

.slip-actions { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }

.slip-title { font-size: 1.5rem; font-weight: 700; line-height: 1.3; margin-bottom: 0.375rem; }

.slip-meta { font-size: 0.8rem; color: var(--muted); margin-bottom: 1.25rem; }

.slip-body {
  font-size: 0.97rem;
  line-height: 1.8;
  color: var(--text);
}

.slip-body p { margin-bottom: 0.875rem; }
.slip-body h1, .slip-body h2, .slip-body h3 { margin: 1.25rem 0 0.5rem; font-weight: 600; }
.slip-body ul, .slip-body ol { margin: 0 0 0.875rem 1.25rem; }
.slip-body li { margin-bottom: 0.25rem; }
.slip-body code {
  background: var(--border);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  font-size: 0.875em;
  font-family: 'SF Mono', 'Fira Code', monospace;
}
.slip-body pre {
  background: #f1f5f9;
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
  margin-bottom: 0.875rem;
}
.slip-body pre code { background: none; padding: 0; }
.slip-body blockquote {
  border-left: 3px solid var(--border);
  padding-left: 1rem;
  color: var(--muted);
  margin-bottom: 0.875rem;
}
.slip-body table { border-collapse: collapse; width: 100%; margin-bottom: 0.875rem; font-size: 0.9rem; }
.slip-body th, .slip-body td { border: 1px solid var(--border); padding: 0.4rem 0.75rem; text-align: left; }
.slip-body th { background: var(--bg); font-weight: 600; }
.slip-body a { color: var(--accent); }

/* ── Links section ── */
.links-section {
  margin-top: 1.75rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.links-section h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.link-row {
  display: flex;
  align-items: center;
  padding: 0.375rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
}

.link-row:last-child { border-bottom: none; }
.link-row a { color: var(--accent); text-decoration: none; flex: 1; }
.link-row a:hover { text-decoration: underline; }
.link-row .link-meta { font-size: 0.75rem; color: var(--muted); margin-left: 0.5rem; }

/* ── Link picker ── */
.chips-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  min-height: 2rem;
  padding: 0.375rem 0;
}

.chip {
  display: inline-flex;
  align-items: center;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--accent-border);
  border-radius: 20px;
  padding: 0.2rem 0.625rem;
  font-size: 0.825rem;
  gap: 0.375rem;
}

.chip button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--accent);
  padding: 0;
  font-size: 0.9rem;
  line-height: 1;
  opacity: 0.7;
}

.chip button:hover { opacity: 1; }

.link-dropdown {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  box-shadow: 0 4px 12px rgba(0,0,0,.08);
  overflow: hidden;
  margin-top: 0.25rem;
}

.link-result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.625rem 0.875rem;
  cursor: pointer;
  transition: background 0.1s;
  font-size: 0.9rem;
}

.link-result:hover { background: var(--accent-dim); }
.link-result + .link-result { border-top: 1px solid var(--border); }
.link-result-title { font-weight: 500; }
.link-result-id { font-size: 0.75rem; color: var(--muted); }

/* ── Pins page ── */
.pin-item {
  display: flex;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  gap: 0.75rem;
  transition: box-shadow 0.15s;
}

.pin-item:hover { box-shadow: 0 2px 8px rgba(0,0,0,.06); }

.drag-handle {
  color: var(--muted);
  cursor: grab;
  font-size: 1.1rem;
  user-select: none;
  flex-shrink: 0;
}

.drag-handle:active { cursor: grabbing; }

.pin-item a {
  flex: 1;
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
}

.pin-item a:hover { color: var(--accent); }

/* ── Empty state ── */
.empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--muted);
}

.empty p { margin-bottom: 1rem; }

/* ── Login ── */
.login-wrap {
  max-width: 340px;
  margin: 5rem auto 2rem;
  padding: 0 1rem;
}

.login-logo {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-align: center;
  margin-bottom: 2rem;
  color: var(--nav);
}

.login-form .form-group { margin-bottom: 1rem; }

.error-msg {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: var(--danger);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

/* ── Card ── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

/* ── HTMX loading indicator ── */
.htmx-indicator { opacity: 0; transition: opacity 0.2s; }
.htmx-request .htmx-indicator { opacity: 1; }

/* ── Responsive ── */
@media (max-width: 480px) {
  .slip-actions { gap: 0.375rem; }
  .btn { padding: 0.4rem 0.65rem; font-size: 0.825rem; }
  .slip-title { font-size: 1.25rem; }
}