/* ============================================================
   PatchPilot — shared design system
   Loaded by all static HTML pages to provide consistent
   components, animations, and layout utilities.
   ============================================================ */

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  --pp-bg: #020617;
  --pp-surface: #0f172a;
  --pp-surface-2: #1e293b;
  --pp-surface-3: #334155;
  --pp-border: rgba(255,255,255,0.08);
  --pp-border-strong: rgba(255,255,255,0.14);
  --pp-border-cyan: rgba(34,211,238,0.08);
  --pp-text: #e2e8f0;
  --pp-text-dim: #94a3b8;
  --pp-text-faint: #64748b;
  --pp-text-muted: #475569;
  --pp-cyan: #22d3ee;
  --pp-cyan-dark: #0891b2;
  --pp-cyan-glow: rgba(34,211,238,0.15);
  --pp-success: #22c55e;
  --pp-warning: #f59e0b;
  --pp-danger: #ef4444;
  --pp-info: #3b82f6;
  --pp-sidebar-w: 16rem;
  --pp-radius: 0.5rem;
  --pp-radius-lg: 0.75rem;
  --pp-radius-xl: 1rem;
  --pp-transition: 150ms ease;
}

/* ── Base ──────────────────────────────────────────────────── */
body {
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  background: var(--pp-bg);
  color: var(--pp-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.18); }

/* ── Glass Card ────────────────────────────────────────────── */
.glass-card {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--pp-border-cyan);
  border-radius: var(--pp-radius-xl);
  transition: border-color var(--pp-transition), transform var(--pp-transition), box-shadow var(--pp-transition);
}
.glass-card:hover {
  border-color: rgba(34,211,238,0.18);
}
.glass-card-interactive:hover {
  border-color: rgba(34,211,238,0.25);
  transform: translateY(-1px);
  box-shadow: 0 4px 24px -8px rgba(34,211,238,0.08);
}

/* ── Metric Glow ───────────────────────────────────────────── */
.metric-glow {
  box-shadow: 0 0 40px -12px var(--pp-cyan-glow);
}

/* ── Stat Card ─────────────────────────────────────────────── */
.stat-card {
  transition: all 0.2s ease;
}
.stat-card:hover {
  border-color: rgba(34,211,238,0.25);
  transform: translateY(-2px);
}

/* ── Risk Severity ─────────────────────────────────────────── */
.risk-critical { background: linear-gradient(135deg, rgba(239,68,68,0.12), rgba(239,68,68,0.04)); border-color: rgba(239,68,68,0.2); }
.risk-high     { background: linear-gradient(135deg, rgba(249,115,22,0.12), rgba(249,115,22,0.04)); border-color: rgba(249,115,22,0.2); }
.risk-medium   { background: linear-gradient(135deg, rgba(234,179,8,0.12), rgba(234,179,8,0.04)); border-color: rgba(234,179,8,0.2); }
.risk-low      { background: linear-gradient(135deg, rgba(34,197,94,0.12), rgba(34,197,94,0.04)); border-color: rgba(34,197,94,0.2); }

/* ── Badges ────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.25rem;
  border: 1px solid transparent;
}
.badge-success  { background: rgba(34,197,94,0.1);  color: #4ade80; border-color: rgba(34,197,94,0.2); }
.badge-warning  { background: rgba(245,158,11,0.1); color: #fbbf24; border-color: rgba(245,158,11,0.2); }
.badge-danger   { background: rgba(239,68,68,0.1);  color: #f87171; border-color: rgba(239,68,68,0.2); }
.badge-info     { background: rgba(59,130,246,0.1); color: #60a5fa; border-color: rgba(59,130,246,0.2); }
.badge-neutral  { background: rgba(148,163,184,0.1); color: #94a3b8; border-color: rgba(148,163,184,0.2); }
.badge-cyan     { background: rgba(34,211,238,0.1); color: #22d3ee; border-color: rgba(34,211,238,0.2); }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--pp-radius);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--pp-transition);
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: var(--pp-cyan-dark);
  color: white;
}
.btn-primary:hover { background: var(--pp-cyan); }
.btn-secondary {
  background: var(--pp-surface-2);
  color: var(--pp-text);
  border-color: var(--pp-border-strong);
}
.btn-secondary:hover { background: var(--pp-surface-3); }
.btn-ghost {
  background: transparent;
  color: var(--pp-text-dim);
}
.btn-ghost:hover { background: rgba(255,255,255,0.05); color: var(--pp-text); }
.btn-danger {
  background: rgba(239,68,68,0.15);
  color: #f87171;
  border-color: rgba(239,68,68,0.2);
}
.btn-danger:hover { background: rgba(239,68,68,0.25); }
.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.8125rem; }
.btn-xs { padding: 0.25rem 0.5rem; font-size: 0.75rem; }

/* ── Tabs ──────────────────────────────────────────────────── */
.tab-active {
  color: var(--pp-cyan);
  border-color: var(--pp-cyan);
  background: rgba(34,211,238,0.06);
}
.tab-inactive {
  color: var(--pp-text-dim);
  border-color: transparent;
}
.tab-inactive:hover {
  color: var(--pp-text);
  background: rgba(255,255,255,0.03);
}

/* ── Form Inputs ───────────────────────────────────────────── */
.pp-input {
  background: var(--pp-bg);
  color: var(--pp-text);
  border: 1px solid var(--pp-border-strong);
  border-radius: var(--pp-radius);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  transition: border-color var(--pp-transition), box-shadow var(--pp-transition);
  outline: none;
  width: 100%;
}
.pp-input::placeholder { color: var(--pp-text-faint); }
.pp-input:focus {
  border-color: var(--pp-cyan);
  box-shadow: 0 0 0 2px var(--pp-cyan-glow);
}
.pp-select {
  background: var(--pp-bg);
  color: var(--pp-text);
  border: 1px solid var(--pp-border-strong);
  border-radius: var(--pp-radius);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  outline: none;
  cursor: pointer;
}
.pp-select:focus {
  border-color: var(--pp-cyan);
  box-shadow: 0 0 0 2px var(--pp-cyan-glow);
}

/* ── Tables ────────────────────────────────────────────────── */
.pp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.pp-table thead th {
  text-align: left;
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--pp-text-faint);
  border-bottom: 1px solid var(--pp-border);
}
.pp-table tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--pp-border);
  color: var(--pp-text-dim);
}
.pp-table tbody tr:hover {
  background: rgba(255,255,255,0.02);
}
.pp-table tbody tr:last-child td {
  border-bottom: none;
}

/* ── Empty State ───────────────────────────────────────────── */
.pp-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  text-align: center;
}
.pp-empty-state svg {
  width: 3rem;
  height: 3rem;
  color: var(--pp-text-faint);
  margin-bottom: 1rem;
}
.pp-empty-state h3 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--pp-text);
  margin-bottom: 0.25rem;
}
.pp-empty-state p {
  font-size: 0.8125rem;
  color: var(--pp-text-faint);
  max-width: 24rem;
}

/* ── Loading / Skeleton ────────────────────────────────────── */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, rgba(30,41,59,0.8) 25%, rgba(51,65,85,0.6) 50%, rgba(30,41,59,0.8) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--pp-radius);
}

.pp-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.pp-spinner {
  width: 2rem;
  height: 2rem;
  border: 2px solid var(--pp-border);
  border-top-color: var(--pp-cyan);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Animations ────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up   { animation: fadeUp 0.5s ease-out both; }
.fade-up-1 { animation: fadeUp 0.5s ease-out 0.05s both; }
.fade-up-2 { animation: fadeUp 0.5s ease-out 0.1s both; }
.fade-up-3 { animation: fadeUp 0.5s ease-out 0.15s both; }
.fade-up-4 { animation: fadeUp 0.5s ease-out 0.2s both; }
.fade-up-5 { animation: fadeUp 0.5s ease-out 0.25s both; }
.fade-up-6 { animation: fadeUp 0.5s ease-out 0.3s both; }

/* ── Sidebar ───────────────────────────────────────────────── */
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  color: rgba(148,163,184,0.8);
  transition: all 0.15s ease;
  border-left: 2px solid transparent;
  text-decoration: none;
}
.sidebar-link:hover {
  background: rgba(255,255,255,0.05);
  color: rgba(203,213,225,1);
}
.sidebar-link.active {
  border-left-color: var(--pp-cyan);
  color: var(--pp-cyan);
  background: rgba(34,211,238,0.05);
}
.sidebar-link svg { flex-shrink: 0; }

/* ── Toast ─────────────────────────────────────────────────── */
.pp-toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  min-width: 20rem;
  max-width: 28rem;
  padding: 1rem 1.25rem;
  border-radius: var(--pp-radius-lg);
  border: 1px solid var(--pp-border);
  background: var(--pp-surface);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  animation: toastIn 0.3s ease-out;
}
.pp-toast.toast-success { border-color: rgba(34,197,94,0.3); }
.pp-toast.toast-error   { border-color: rgba(239,68,68,0.3); }
.pp-toast.toast-warning { border-color: rgba(245,158,11,0.3); }
@keyframes toastIn {
  from { opacity: 0; transform: translateY(1rem) scale(0.95); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ── Modal Backdrop ────────────────────────────────────────── */
.pp-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.15s ease-out;
}
.pp-modal {
  background: var(--pp-surface);
  border: 1px solid var(--pp-border-strong);
  border-radius: var(--pp-radius-xl);
  box-shadow: 0 16px 64px rgba(0,0,0,0.5);
  max-width: 32rem;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ── Topbar ────────────────────────────────────────────────── */
.pp-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: 3.5rem;
  border-bottom: 1px solid var(--pp-border);
  background: rgba(2,6,23,0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.pp-search-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.75rem;
  border-radius: var(--pp-radius);
  border: 1px solid var(--pp-border);
  background: var(--pp-surface);
  color: var(--pp-text-faint);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all var(--pp-transition);
}
.pp-search-pill:hover {
  border-color: var(--pp-border-strong);
  color: var(--pp-text-dim);
}
.pp-search-pill kbd {
  font-size: 0.6875rem;
  padding: 0.125rem 0.375rem;
  border-radius: 0.25rem;
  background: var(--pp-surface-2);
  border: 1px solid var(--pp-border);
  color: var(--pp-text-faint);
  font-family: inherit;
}

/* ── Chart Container ───────────────────────────────────────── */
.chart-container canvas { max-height: 260px; }

/* ── Stat Ring (conic gradient) ────────────────────────────── */
.stat-ring { background: conic-gradient(var(--ring-color) var(--ring-pct), rgba(255,255,255,0.06) 0); }