:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --text: #1a1a1a;
  --text-muted: #666666;
  --border: #e0e2e6;
  --accent: #4a6fa5;
  --accent-hover: #3d5c8a;
  --danger: #c0392b;
  --danger-hover: #a53125;
  --tab-inactive: #eceef1;
  --code-bg: #f0f1f3;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
}

[data-theme="dark"] {
  --bg: #121212;
  --surface: #1c1c1c;
  --text: #f0f0f0;
  --text-muted: #9a9a9a;
  --border: #333333;
  --accent: #5b8fd6;
  --accent-hover: #729fdd;
  --danger: #d16b5c;
  --danger-hover: #db8172;
  --tab-inactive: #262626;
  --code-bg: #161616;
  --shadow: 0 1px 3px rgba(0,0,0,0.4);
}

* { box-sizing: border-box; }
[hidden], .hidden { display: none !important; }

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

/* ---- Login ---- */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card { background: var(--surface); padding: 2.5rem; border-radius: 12px; box-shadow: var(--shadow); width: 320px; }
.login-card h1 { margin: 0 0 0.25rem; font-size: 1.3rem; }
.subtitle { color: var(--text-muted); margin: 0 0 1.5rem; font-size: 0.9rem; }
.login-card label { display: block; font-size: 0.85rem; margin-bottom: 0.3rem; color: var(--text-muted); }
.login-card input {
  width: 100%; padding: 0.6rem; margin-bottom: 1rem; border: 1px solid var(--border);
  border-radius: 6px; background: var(--bg); color: var(--text); font-size: 0.95rem;
}
.login-card button {
  width: 100%; padding: 0.7rem; border: none; border-radius: 6px;
  background: var(--accent); color: #fff; font-size: 0.95rem; cursor: pointer;
}
.login-card button:hover { background: var(--accent-hover); }
.error-text { color: var(--danger); font-size: 0.85rem; margin-top: 0.5rem; }

/* ---- Top bar ---- */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem 1.5rem; background: var(--surface); border-bottom: 1px solid var(--border);
}
.topbar h1 { font-size: 1.2rem; margin: 0; }
.topbar-actions { display: flex; gap: 0.5rem; }
.icon-btn {
  background: none; border: 1px solid var(--border); border-radius: 6px;
  padding: 0.4rem 0.6rem; cursor: pointer; color: var(--text); font-size: 1rem;
}
.icon-btn:hover { background: var(--tab-inactive); }

main { padding: 1.25rem 1.5rem 3rem; max-width: 1000px; margin: 0 auto; }

.warning-banner {
  background: var(--danger); color: #fff; padding: 0.75rem 1rem; border-radius: 8px; margin-bottom: 1rem; font-size: 0.9rem;
}

/* ---- Toolbar ---- */
.toolbar { display: flex; gap: 0.6rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
.search-input {
  flex: 1; min-width: 200px; padding: 0.6rem 0.9rem; border: 1px solid var(--border);
  border-radius: 6px; background: var(--surface); color: var(--text); font-size: 0.9rem;
}
.toolbar select {
  padding: 0.6rem 0.7rem; border: 1px solid var(--border); border-radius: 6px;
  background: var(--surface); color: var(--text); font-size: 0.9rem;
}
.primary-btn {
  background: var(--accent); color: #fff; border: none; padding: 0.6rem 1.1rem;
  border-radius: 6px; cursor: pointer; font-size: 0.9rem; white-space: nowrap;
}
.primary-btn:hover { background: var(--accent-hover); }
.secondary-btn {
  background: var(--tab-inactive); color: var(--text); border: 1px solid var(--border);
  padding: 0.6rem 1rem; border-radius: 6px; cursor: pointer; font-size: 0.9rem;
}
.danger-btn {
  background: var(--danger); color: #fff; border: none; padding: 0.6rem 1.1rem;
  border-radius: 6px; cursor: pointer; font-size: 0.9rem;
}
.danger-btn:hover { background: var(--danger-hover); }

/* ---- Snippet list ---- */
.snippet-list { display: flex; flex-direction: column; gap: 0.75rem; }
.snippet-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 1rem 1.2rem; cursor: pointer; box-shadow: var(--shadow);
}
.snippet-card:hover { border-color: var(--accent); }
.snippet-card-top { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.snippet-card-title { font-weight: 600; font-size: 1rem; }
.snippet-badges { display: flex; gap: 0.4rem; }
.badge {
  font-size: 0.72rem; padding: 0.15rem 0.55rem; border-radius: 999px;
  background: var(--tab-inactive); color: var(--text-muted); white-space: nowrap;
}
.badge.category { background: var(--accent); color: #fff; }
.snippet-preview {
  margin-top: 0.5rem; font-family: "SF Mono", Monaco, Consolas, monospace; font-size: 0.82rem;
  color: var(--text-muted); background: var(--code-bg); padding: 0.5rem 0.7rem; border-radius: 6px;
  white-space: pre-wrap; overflow: hidden; max-height: 3.2em;
}
.empty-state { color: var(--text-muted); text-align: center; padding: 3rem; }

/* ---- Modal ---- */
.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5); display: flex;
  align-items: flex-start; justify-content: center; padding: 2rem 1rem; overflow-y: auto; z-index: 100;
}
.modal-content { background: var(--surface); border-radius: 12px; padding: 1.75rem; width: 100%; max-width: 620px; position: relative; }
.modal-close { position: absolute; top: 1rem; right: 1.1rem; background: none; border: none; font-size: 1.4rem; cursor: pointer; color: var(--text-muted); }
.modal-content h2 { margin-top: 0; }

.form-row { display: flex; gap: 1rem; }
.form-group { flex: 1; margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.3rem; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 0.55rem; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg); color: var(--text); font-size: 0.9rem; font-family: inherit;
}
.code-textarea {
  font-family: "SF Mono", Monaco, Consolas, monospace !important; font-size: 0.85rem;
  background: var(--code-bg) !important;
}
.modal-actions { display: flex; justify-content: space-between; align-items: center; margin-top: 1.25rem; }
.modal-actions-right { display: flex; gap: 0.6rem; }

@media (max-width: 600px) {
  .form-row { flex-direction: column; gap: 0; }
  main { padding: 1rem; }
  .toolbar { flex-direction: column; }
}