/* API Versioning Visualizer — style.css */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --primary: #3B82F6;
  --bg: #0a0a0f;
  --bg-card: rgba(17, 17, 25, 0.92);
  --surface: rgba(30, 30, 45, 0.6);
  --border: rgba(59, 130, 246, 0.08);
  --text: #e0e0e4;
  --text-dim: #8b8b99;
  --text-muted: #4a4a58;
  --green: #10B981;
  --red: #EF4444;
  --yellow: #F59E0B;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.2s ease;
}

@media (prefers-color-scheme: light) {
  :root { --bg: #f5f5f5; --bg-card: rgba(255,255,255,0.95); --surface: rgba(0,0,0,0.04); --border: rgba(0,0,0,0.06); --text: #1a1a1a; --text-dim: #666; --text-muted: #aaa; }
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', system-ui, sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }

.header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; background: var(--bg-card); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100;
}
.header-left { display: flex; align-items: center; gap: 10px; }
.logo { width: 34px; height: 34px; background: linear-gradient(135deg, var(--primary), #60A5FA); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 16px; }
.header h1 { font-size: 15px; font-weight: 600; color: var(--text); }
.header-right { display: flex; gap: 8px; }

.btn {
  padding: 7px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font-family: 'Inter', sans-serif;
  font-size: 12px; font-weight: 500; cursor: pointer; transition: var(--transition);
}
.btn:hover { border-color: var(--primary); }
.btn-primary { background: var(--primary); border-color: transparent; color: #fff; }
.btn-primary:hover { filter: brightness(1.15); }
.btn-sm { padding: 5px 10px; font-size: 11px; }
.btn-lg { width: 100%; padding: 12px; font-size: 14px; margin: 12px 0; }

.app-container { max-width: 1100px; margin: 0 auto; padding: 16px; }

.upload-panels { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.upload-panel { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; }
.upload-panel h3 { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.8px; color: var(--text-dim); margin-bottom: 8px; }

.spec-input {
  width: 100%; height: 120px; resize: vertical; padding: 10px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--bg); color: var(--text);
  font-family: 'JetBrains Mono', monospace; font-size: 11px; outline: none;
}
.spec-input:focus { border-color: var(--primary); }

.summary-bar { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
.sum-card { flex: 1; min-width: 80px; padding: 12px; border-radius: var(--radius); text-align: center; }
.sum-count { display: block; font-size: 22px; font-weight: 700; }
.sum-label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.5px; }
.sum-breaking { background: rgba(239,68,68,0.1); color: var(--red); border: 1px solid rgba(239,68,68,0.2); }
.sum-deprecated { background: rgba(245,158,11,0.1); color: var(--yellow); border: 1px solid rgba(245,158,11,0.2); }
.sum-new { background: rgba(16,185,129,0.1); color: var(--green); border: 1px solid rgba(16,185,129,0.2); }
.sum-changed { background: rgba(59,130,246,0.1); color: var(--primary); border: 1px solid rgba(59,130,246,0.2); }
.sum-unchanged { background: var(--surface); color: var(--text-muted); border: 1px solid var(--border); }

.diff-results { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.diff-item {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 12px;
}
.diff-badge { padding: 3px 8px; border-radius: 4px; font-size: 9px; font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase; flex-shrink: 0; }
.badge-breaking { background: rgba(239,68,68,0.15); color: var(--red); }
.badge-deprecated { background: rgba(245,158,11,0.15); color: var(--yellow); }
.badge-new { background: rgba(16,185,129,0.15); color: var(--green); }
.badge-changed { background: rgba(59,130,246,0.15); color: var(--primary); }
.badge-unchanged { background: var(--surface); color: var(--text-muted); }
.diff-method { font-weight: 600; font-family: 'JetBrains Mono', monospace; font-size: 11px; }
.diff-method.get { color: var(--green); } .diff-method.post { color: var(--primary); }
.diff-method.put { color: var(--yellow); } .diff-method.delete { color: var(--red); }
.diff-method.patch { color: #A78BFA; }
.diff-path { font-family: 'JetBrains Mono', monospace; font-size: 11px; flex: 1; }
.diff-detail { font-size: 10px; color: var(--text-muted); max-width: 250px; }

.migration-guide {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px;
}
.migration-guide h3 { font-size: 12px; font-weight: 600; color: var(--text-dim); margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.6px; }
.migration-step { padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 12px; }
.migration-step:last-child { border-bottom: none; }
.migration-step code { font-family: 'JetBrains Mono', monospace; color: var(--primary); font-size: 11px; }

.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 10px 20px; font-size: 13px; color: var(--text);
  opacity: 0; transition: all 0.3s ease; z-index: 300; pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface); border-radius: 3px; }

@media (max-width: 700px) { .upload-panels { grid-template-columns: 1fr; } }