/* ================================================================= */
/* Facsimile Finder — Playground Design System v1.0                  */
/* ================================================================= */

:root {
  /* Backgrounds & Surfaces */
  --pg-bg: #f5f0eb;
  --pg-surface: #fff8f2;
  --pg-surface-alt: #f0e8e0;
  --pg-surface-hover: #ece3d9;

  /* Borders */
  --pg-border: #e8ddd5;
  --pg-border-strong: #d4c5b8;
  --pg-border-subtle: #f0e8e0;

  /* Text Hierarchy */
  --pg-text: #3d332c;
  --pg-text-secondary: #7a6b62;
  --pg-text-tertiary: #9f8e84;
  --pg-text-placeholder: #b0a098;

  /* Interactive / Accent */
  --pg-accent: #CC0000;
  --pg-accent-hover: #a30000;
  --pg-accent-active: #8a0000;
  --pg-dark: #3d332c;
  --pg-dark-hover: #2e2520;
  --pg-link: #a33b2e;
  --pg-link-hover: #CC0000;

  /* Semantic */
  --pg-success-bg: #f0f7f0;
  --pg-success-border: #c3dcc3;
  --pg-success-text: #2d5a2d;
  --pg-success: #2d7a3a;

  --pg-warning-bg: #fdf6ed;
  --pg-warning-border: #f0d9a8;
  --pg-warning-text: #7a5a1f;
  --pg-warning: #b8860b;

  --pg-error-bg: #fdf0ef;
  --pg-error-border: #f5c6c3;
  --pg-error-text: #8b2e27;
  --pg-error: #c9463b;

  --pg-info-bg: #f5f0eb;
  --pg-info-border: #d4c5b8;
  --pg-info-text: #5C4C4A;

  /* Typography */
  --pg-font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --pg-font-mono: 'SFMono-Regular', 'Fira Mono', Consolas, monospace;

  /* Radius */
  --pg-radius-sm: 6px;
  --pg-radius: 10px;
  --pg-radius-lg: 12px;
  --pg-radius-full: 999px;

  /* Shadows (warm brown, not black) */
  --pg-shadow: 0 1px 4px rgba(63,51,44,.08), 0 4px 16px rgba(63,51,44,.06);
  --pg-shadow-lg: 0 4px 16px rgba(63,51,44,.08);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--pg-font-sans);
  background: var(--pg-bg);
  color: var(--pg-text);
  min-height: 100vh;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

/* ================================================================= */
/* Navbar                                                              */
/* ================================================================= */
.pg-navbar {
  background: var(--pg-surface);
  border-bottom: 1px solid var(--pg-border);
  padding: 0 24px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

.pg-navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--pg-text);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.pg-navbar-brand img { height: 28px; }

.pg-navbar-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.pg-navbar-nav a {
  font-size: 0.85rem;
  color: var(--pg-text-tertiary);
  text-decoration: none;
  transition: color 0.15s;
}

.pg-navbar-nav a:hover { color: var(--pg-text); }

/* ================================================================= */
/* Layout                                                              */
/* ================================================================= */
.pg-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 24px;
}

.pg-container-narrow { max-width: 680px; }
.pg-container-wide   { max-width: 1200px; }

/* ================================================================= */
/* Typography                                                          */
/* ================================================================= */
h1, h2, h3, h4 { color: var(--pg-text); }
h1 { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.02em; }
h2 { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.01em; }
h3 { font-size: 1rem; font-weight: 600; }

.pg-section-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--pg-text-tertiary);
  margin-bottom: 16px;
}

.pg-subtitle {
  color: var(--pg-text-tertiary);
  font-size: 0.875rem;
}

.pg-mono {
  font-family: var(--pg-font-mono);
  font-size: 0.82rem;
}

/* ================================================================= */
/* Cards                                                               */
/* ================================================================= */
.pg-card {
  background: var(--pg-surface);
  border: 1px solid var(--pg-border);
  border-radius: var(--pg-radius-lg);
  padding: 24px 20px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}

a.pg-card:hover {
  border-color: var(--pg-text-tertiary);
  box-shadow: var(--pg-shadow-lg);
  transform: translateY(-2px);
}

.pg-panel {
  background: var(--pg-surface);
  border: 1px solid var(--pg-border);
  border-radius: var(--pg-radius-lg);
  overflow: hidden;
}

.pg-panel-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--pg-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pg-panel-header h3,
.pg-panel-header h5 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
}

.pg-panel-body { padding: 24px 20px; }

/* ================================================================= */
/* Grid                                                                */
/* ================================================================= */
.pg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.pg-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.pg-col { flex: 1; min-width: 0; }

.pg-divider {
  border: none;
  border-top: 1px solid var(--pg-border);
  margin: 40px 0;
}

/* ================================================================= */
/* Buttons                                                             */
/* ================================================================= */
.pg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  border-radius: var(--pg-radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  font-family: inherit;
  text-decoration: none;
  transition: background 0.15s, opacity 0.15s;
  gap: 6px;
}

.pg-btn:disabled { opacity: 0.55; cursor: not-allowed; }

.pg-btn-primary   { background: var(--pg-accent);  color: #fff; }
.pg-btn-primary:hover { background: var(--pg-accent-hover); }

.pg-btn-secondary { background: var(--pg-dark);    color: #fff; }
.pg-btn-secondary:hover { background: var(--pg-dark-hover); }

.pg-btn-ghost {
  background: transparent;
  border: 1px solid var(--pg-border);
  color: var(--pg-text-secondary);
}
.pg-btn-ghost:hover { background: var(--pg-surface-alt); }

.pg-btn-danger    { background: var(--pg-error);   color: #fff; }
.pg-btn-danger:hover { background: #a33830; }

.pg-btn-success   { background: var(--pg-success); color: #fff; }
.pg-btn-success:hover { background: #256b30; }

.pg-btn-sm   { padding: 6px 12px; font-size: 0.8rem; }
.pg-btn-full { width: 100%; }

/* ================================================================= */
/* Forms                                                               */
/* ================================================================= */
.pg-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 1.25rem;
}

.pg-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--pg-text);
}

.pg-label-sm {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--pg-text-secondary);
}

.pg-input,
.pg-select,
.pg-textarea {
  border: 1px solid var(--pg-border);
  border-radius: var(--pg-radius-sm);
  padding: 0.55rem 0.75rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--pg-text);
  background: #fff;
  width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}

.pg-input:focus,
.pg-select:focus,
.pg-textarea:focus {
  border-color: var(--pg-accent);
  box-shadow: 0 0 0 3px rgba(204, 0, 0, 0.12);
}

.pg-input::placeholder { color: var(--pg-text-placeholder); }

.pg-input-sm,
.pg-select-sm {
  padding: 0.4rem 0.6rem;
  font-size: 0.85rem;
}

.pg-textarea { resize: vertical; }

.pg-hint {
  font-size: 0.78rem;
  color: var(--pg-text-tertiary);
}

.pg-input-group {
  display: flex;
  align-items: stretch;
}

.pg-input-group-text {
  display: flex;
  align-items: center;
  padding: 0 0.75rem;
  background: var(--pg-surface-alt);
  border: 1px solid var(--pg-border);
  border-right: none;
  border-radius: var(--pg-radius-sm) 0 0 var(--pg-radius-sm);
  font-size: 0.9rem;
  color: var(--pg-text-secondary);
}

.pg-input-group .pg-input {
  border-radius: 0 var(--pg-radius-sm) var(--pg-radius-sm) 0;
}

.pg-check-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--pg-text);
  cursor: pointer;
}

/* ================================================================= */
/* Tables                                                              */
/* ================================================================= */
.pg-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.pg-table th {
  text-align: left;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--pg-text-tertiary);
  padding: 10px 16px;
  border-bottom: 2px solid var(--pg-border);
  background: var(--pg-surface-alt);
}

.pg-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--pg-border-subtle);
  vertical-align: middle;
  color: var(--pg-text);
}

.pg-table tbody tr:last-child td { border-bottom: none; }
.pg-table tbody tr:hover { background: var(--pg-surface-hover); }

.pg-table-sm th { padding: 6px 12px; }
.pg-table-sm td { padding: 8px 12px; font-size: 0.82rem; }

/* ================================================================= */
/* Badges                                                              */
/* ================================================================= */
.pg-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: var(--pg-radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.pg-badge-success { background: var(--pg-success-bg); color: var(--pg-success-text); }
.pg-badge-warning { background: var(--pg-warning-bg); color: var(--pg-warning-text); }
.pg-badge-error   { background: var(--pg-error-bg);   color: var(--pg-error-text); }
.pg-badge-info    { background: var(--pg-info-bg);     color: var(--pg-info-text); }
.pg-badge-neutral { background: var(--pg-surface-alt); color: var(--pg-text-secondary); }
.pg-badge-dark    { background: var(--pg-dark);        color: #fff; }

/* ================================================================= */
/* Alerts                                                              */
/* ================================================================= */
.pg-alert {
  padding: 12px 16px;
  border-radius: var(--pg-radius);
  font-size: 0.875rem;
  margin-bottom: 16px;
  border: 1px solid;
}

.pg-alert-success { background: var(--pg-success-bg); border-color: var(--pg-success-border); color: var(--pg-success-text); }
.pg-alert-warning { background: var(--pg-warning-bg); border-color: var(--pg-warning-border); color: var(--pg-warning-text); }
.pg-alert-error   { background: var(--pg-error-bg);   border-color: var(--pg-error-border);   color: var(--pg-error-text); }
.pg-alert-info    { background: var(--pg-info-bg);     border-color: var(--pg-info-border);     color: var(--pg-info-text); }

/* ================================================================= */
/* Spinner                                                             */
/* ================================================================= */
.pg-spinner {
  width: 20px;
  height: 20px;
  border: 3px solid var(--pg-border);
  border-top-color: var(--pg-accent);
  border-radius: 50%;
  animation: pg-spin 0.8s linear infinite;
  display: inline-block;
}

.pg-spinner-lg { width: 48px; height: 48px; border-width: 4px; }

@keyframes pg-spin { to { transform: rotate(360deg); } }

/* ================================================================= */
/* Utilities                                                           */
/* ================================================================= */
.pg-text-muted     { color: var(--pg-text-secondary); }
.pg-text-tertiary  { color: var(--pg-text-tertiary); }
.pg-text-accent    { color: var(--pg-accent); }
.pg-font-mono      { font-family: var(--pg-font-mono); font-size: 0.8em; }

.pg-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ================================================================= */
/* Responsive                                                          */
/* ================================================================= */
@media (max-width: 480px) {
  .pg-container { padding: 24px 16px; }
  .pg-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .pg-card { padding: 18px 14px; }
  .pg-navbar { padding: 0 16px; }
  .pg-row { flex-direction: column; }
}