:root {
  --surface-0: #0c0b0a;
  --surface-1: #161412;
  --surface-2: #1e1b18;
  --surface-3: #262220;
  --text-primary: #f3ede4;
  --text-secondary: #a49d92;
  --text-muted: #736b60;
  --border: #2c2723;
  --border-strong: #3a3430;
  --accent-bg: #3d240f;
  --accent-text: #ff9c4d;
  --accent-fill: #ff7a1a;
  --accent-fill-hover: #ff8c3d;
  --danger-bg: #3a1512;
  --danger-text: #ff8073;
  --radius: 8px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--surface-0);
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.6;
}

a { color: var(--accent-text); text-decoration: none; }
a:hover { text-decoration: underline; }

button, input, textarea, select {
  font-family: inherit;
  font-size: 14px;
}

button {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 14px;
  cursor: pointer;
  color: var(--text-primary);
  transition: border-color 0.15s, background 0.15s;
}
button:hover { border-color: var(--border-strong); background: var(--surface-3); }
button.primary {
  background: var(--accent-fill);
  color: #1a0f04;
  border-color: var(--accent-fill);
  font-weight: 500;
}
button.primary:hover { background: var(--accent-fill-hover); border-color: var(--accent-fill-hover); }
button.danger { color: var(--danger-text); border-color: #4a2320; }
button.danger:hover { background: var(--danger-bg); }

input[type=text], input[type=password], input[type=url], input[type=search], textarea, select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-1);
  color: var(--text-primary);
}
input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--accent-fill);
}
textarea { font-family: var(--font-mono); resize: vertical; }
input[type=color] { background: transparent; border: 1px solid var(--border); padding: 2px; }
input[type=range] { accent-color: var(--accent-fill); }

.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 214px;
  flex-shrink: 0;
  background: var(--surface-1);
  border-right: 1px solid var(--border);
  padding: 1.25rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.brand { display: flex; align-items: center; gap: 9px; padding: 0 0.5rem 1.1rem; font-weight: 600; font-size: 15px; letter-spacing: -0.2px; }

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: var(--radius);
  color: var(--text-secondary); font-size: 14px; cursor: pointer;
  text-decoration: none;
}
.nav-item i { font-size: 16px; width: 18px; text-align: center; }
.nav-item:hover { background: var(--surface-2); color: var(--text-primary); }
.nav-item.active { background: var(--accent-bg); color: var(--accent-text); }

.sidebar-footer {
  margin-top: auto; display: flex; align-items: center; justify-content: space-between;
  padding-top: 10px; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-muted);
}
.sidebar-footer a { color: var(--text-muted); }
.sidebar-footer a:hover { color: var(--accent-text); }

.main { flex: 1; padding: 1.75rem 2rem; max-width: 1100px; }

.page-title { font-size: 21px; font-weight: 600; margin: 0 0 4px; }
.page-sub { color: var(--text-secondary); font-size: 13px; margin: 0 0 1.5rem; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 1.75rem; }
.stat-card { background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px; padding: 1rem; }
.stat-label { font-size: 13px; color: var(--text-secondary); margin: 0 0 6px; }
.stat-value { font-size: 25px; font-weight: 600; margin: 0; color: var(--accent-text); }

.section-title { font-size: 13px; font-weight: 600; color: var(--text-secondary); margin: 0 0 10px; text-transform: uppercase; letter-spacing: 0.04em; }

.tool-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; margin-bottom: 1.75rem; }
.tool-card { background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px; padding: 14px; display: flex; flex-direction: column; align-items: center; gap: 6px; cursor: pointer; transition: border-color 0.15s, transform 0.1s; }
.tool-card:hover { border-color: var(--accent-fill); }
.tool-card:active { transform: scale(0.97); }
.tool-card i { color: var(--accent-text); }

.link-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-bottom: 1.75rem; }
.link-card {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 16px; display: flex; align-items: center; gap: 12px;
  cursor: pointer; transition: border-color 0.15s, transform 0.1s;
}
.link-card:hover { border-color: var(--accent-fill); text-decoration: none; }
.link-card:active { transform: scale(0.98); }
.link-icon {
  width: 38px; height: 38px; border-radius: 10px; flex-shrink: 0;
  background: var(--accent-bg); color: var(--accent-text);
  display: flex; align-items: center; justify-content: center; font-size: 18px;
}
.link-title { font-weight: 500; font-size: 14px; color: var(--text-primary); margin: 0; }
.link-sub { font-size: 12px; color: var(--text-muted); margin: 2px 0 0; }
.link-go { margin-left: auto; color: var(--text-muted); font-size: 16px; }

.card { background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px; padding: 1rem 1.25rem; margin-bottom: 10px; }
.card-row { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.card-title { font-weight: 500; margin: 0 0 4px; }
.card-meta { font-size: 12px; color: var(--text-muted); }
.card-body { font-size: 13px; color: var(--text-secondary); white-space: pre-wrap; margin-top: 6px; }
pre.code-block { background: #0a0908; color: #f3ede4; padding: 12px; border-radius: var(--radius); overflow-x: auto; font-family: var(--font-mono); font-size: 13px; border: 1px solid var(--border); }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; background: var(--accent-bg); color: var(--accent-text); }

.form-row { display: flex; gap: 8px; margin-bottom: 1rem; }
.form-row > * { flex: 1; }

.filter-row { display: flex; gap: 8px; margin-bottom: 1.1rem; align-items: center; }
.filter-row input[type=search] { flex: 1; }
.filter-row select { max-width: 180px; }
.filter-count { font-size: 12px; color: var(--text-muted); white-space: nowrap; }

.view { display: none; }
.view.active { display: block; }

.empty { color: var(--text-muted); font-size: 13px; padding: 2rem 0; text-align: center; }

.checkbox-row { display: flex; align-items: center; gap: 10px; }
.checkbox-row input[type=checkbox] { width: 18px; height: 18px; accent-color: var(--accent-fill); }
.todo-text.done { text-decoration: line-through; color: var(--text-muted); }

.logo-mark {
  width: 27px; height: 27px; border-radius: 7px;
  background: var(--accent-fill); color: #1a0f04;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 11px; letter-spacing: -0.5px; flex-shrink: 0;
}

.settings-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; border-bottom: 1px solid var(--border);
}
.settings-row:last-child { border-bottom: none; }
.settings-row-label { font-size: 14px; font-weight: 500; }
.settings-row-desc { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }