/* Sistema Planos - Estilos compartidos */
:root {
  --color-bg: #f5f6fa;
  --color-surface: #ffffff;
  --color-border: #e2e6ed;
  --color-text: #1a1d24;
  --color-text-muted: #6c757d;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-success: #059669;
  --color-success-bg: #d1fae5;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
}

* { box-sizing: border-box; }
body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  font-size: 15px;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
  min-height: 100vh;
}

/* Header / Nav */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-bottom: 20px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}
.app-header h1 { margin: 0; font-size: 1.35rem; font-weight: 600; }
.app-header .logo { font-weight: 700; color: var(--color-primary); }
.app-nav { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* Breadcrumb */
.breadcrumb {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--color-primary); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { color: var(--color-text-muted); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  text-decoration: none;
  color: var(--color-text);
  font-size: 0.9rem;
  background: var(--color-surface);
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.btn:hover { background: #f0f2f5; border-color: #c5cbd3; }
.btn.primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn.primary:hover { background: var(--color-primary-hover); }
.btn.success { background: var(--color-success); color: #fff; border-color: var(--color-success); }
.btn.success:hover { background: #047857; }

/* Cards */
.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
}
.card h2, .card h3 { margin: 0 0 16px; font-size: 1rem; font-weight: 600; color: var(--color-text); }
.card p:last-child { margin-bottom: 0; }

/* Search hero */
.search-hero {
  text-align: center;
  padding: 48px 24px;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  border-radius: var(--radius);
  color: #fff;
  margin-bottom: 32px;
}
.search-hero h1 { margin: 0 0 8px; font-size: 1.75rem; font-weight: 700; }
.search-hero p { margin: 0; opacity: .9; font-size: 1rem; }
.search-hero .search-form { margin-top: 24px; max-width: 480px; margin-left: auto; margin-right: auto; }
.search-hero .search-form input {
  width: 100%;
  padding: 14px 18px;
  font-size: 16px;
  border: none;
  border-radius: 10px;
  box-shadow: var(--shadow-md);
}
.search-hero .search-form button {
  margin-top: 12px;
  width: 100%;
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  background: #fff;
  color: var(--color-primary);
  cursor: pointer;
  transition: transform .1s, box-shadow .15s;
}
.search-hero .search-form button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,.2);
}

/* Results grid */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}
.result-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  transition: box-shadow .15s, border-color .15s;
}
.result-card:hover { box-shadow: var(--shadow-md); border-color: #c5cbd3; }
.result-card .file-name { font-weight: 600; margin-bottom: 6px; word-break: break-word; }
.result-card .file-path { font-size: 0.8rem; color: var(--color-text-muted); margin-bottom: 12px; }
.result-card .actions { display: flex; flex-wrap: wrap; gap: 8px; }
.result-card .score { display: inline-block; padding: 4px 10px; background: #eef2ff; color: var(--color-primary); border-radius: 20px; font-size: 0.8rem; font-weight: 600; margin-bottom: 10px; }

/* Muted text */
.muted { color: var(--color-text-muted); font-size: 0.875rem; }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--color-text-muted);
}
.empty-state p { margin: 0 0 16px; }

/* Footer */
.app-footer {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Engine status */
.engine-status { display: inline-flex; align-items: center; gap: 6px; font-size: 0.8rem; }
.engine-status.ok { color: var(--color-success); }
.engine-status.error { color: #dc3545; }

/* Dark mode */
body.dark-mode {
  --color-bg: #1a1d24;
  --color-surface: #252830;
  --color-border: #3a3f4b;
  --color-text: #e8eaed;
  --color-text-muted: #9aa0a6;
  --color-primary: #5b9cf5;
  --color-primary-hover: #7ab0f7;
  --color-success: #34a853;
  --color-success-bg: #1e3a2a;
  --shadow: 0 1px 3px rgba(0,0,0,.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,.4);
}
body.dark-mode .search-hero { background: linear-gradient(135deg, #252830 0%, #1a1d24 100%); border: 1px solid var(--color-border); }
body.dark-mode .result-card:hover { border-color: var(--color-border); }

/* Scale bar */
.scale-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; background: rgba(0,0,0,.05);
  border-radius: 8px; font-size: 0.85rem; margin-bottom: 12px;
}
body.dark-mode .scale-bar { background: rgba(255,255,255,.08); }

/* Measure history */
.measure-history { margin-top: 16px; }
.measure-history h4 { margin: 0 0 8px; font-size: 0.9rem; }
.measure-history ul { margin: 0; padding: 0; list-style: none; max-height: 150px; overflow-y: auto; }
.measure-history li { padding: 6px 10px; border-radius: 6px; margin-bottom: 4px; font-size: 0.85rem; background: rgba(0,0,0,.03); }
body.dark-mode .measure-history li { background: rgba(255,255,255,.05); }

/* Point feedback */
.point-feedback { position: absolute; background: #333; color: #fff; padding: 4px 8px; border-radius: 4px; font-size: 11px; pointer-events: none; z-index: 10; }