:root {
  --font-sans: "Inter", "Segoe UI", Tahoma, sans-serif;
  --color-bg: #f3f5fb;
  --color-surface: #ffffff;
  --color-surface-muted: #eef2ff;
  --color-text: #16213d;
  --color-text-muted: #5d6785;
  --color-primary: #335cff;
  --color-primary-dark: #1f3ec8;
  --color-success: #17a26b;
  --color-warning: #b7791f;
  --color-danger: #cb3a31;
  --color-border: #dbe2f3;
  --shadow-sm: 0 4px 10px rgba(18, 38, 88, 0.08);
  --shadow-md: 0 16px 28px rgba(18, 38, 88, 0.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
}

h1,h2,h3,h4,p { margin-top: 0; }
.container { width: min(1140px, 92%); margin: 0 auto; }

.ch-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border: 1px solid transparent;
}
.ch-badge.draft{background:#f4f4f5;color:#3f3f46;}
.ch-badge.in_review{background:#fff8eb;color:#9a6316;}
.ch-badge.published{background:#e9fbf2;color:#0f8557;}
.ch-badge.archived{background:#edf1ff;color:#3f58b5;}
.ch-badge.locked{background:#fef2f2;color:#af2f27;}
.ch-badge.completed{background:#e7f4ff;color:#1963a6;}

.ch-btn {
  border: 0;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: .2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.ch-btn.primary{background:var(--color-primary);color:#fff;}
.ch-btn.primary:hover{background:var(--color-primary-dark);}
.ch-btn.secondary{background:var(--color-surface);color:var(--color-primary);border:1px solid var(--color-border);}
.ch-btn:focus-visible{outline:3px solid rgba(51,92,255,.35);outline-offset:2px;}
.ch-btn[disabled]{opacity:.6;cursor:not-allowed;}

.ch-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.ch-input, .ch-select, .ch-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
}
.ch-input:focus, .ch-select:focus, .ch-textarea:focus {
  outline: 3px solid rgba(51,92,255,.18);
  border-color: var(--color-primary);
}

.ch-skeleton {
  border-radius: 10px;
  background: linear-gradient(90deg, #eef2ff 25%, #f7f9ff 37%, #eef2ff 63%);
  background-size: 400% 100%;
  animation: shimmer 1.3s infinite;
}
@keyframes shimmer { 0% { background-position: 100% 0;} 100% { background-position: -100% 0; } }

.ch-toast {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 18px;
  background: #131c35;
  color: #fff;
  padding: 10px 14px;
  border-radius: 10px;
  z-index: 2000;
}