/**
 * Fijate Tools - Auditor de Cabeceras HTTP y Seguridad Web
 * Estilos canónicos, insignias de calificación y diseño responsive
 */

:root {
  --bg-primary: #0b0f19;
  --bg-surface: #111827;
  --bg-card: #1f2937;
  --bg-card-hover: #283548;
  --border-color: #374151;
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;

  --accent-green: #10b981;
  --accent-cyan: #06b6d4;
  --accent-blue: #3b82f6;
  --accent-yellow: #f59e0b;
  --accent-red: #ef4444;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.25);
  --transition-fast: 0.2s ease;
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-surface: #ffffff;
  --bg-card: #f1f5f9;
  --bg-card-hover: #e2e8f0;
  --border-color: #cbd5e1;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --shadow-card: 0 4px 15px rgba(0, 0, 0, 0.06);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tool-layout {
  max-width: 1200px;
  width: 100%;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
}

.tool-with-sidebar {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.tool-main-content {
  flex: 1 1 0%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Tarjeta principal */
.card-main {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

.card-header {
  margin-bottom: 1.25rem;
}

.card-title {
  font-size: 1.35rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 0.35rem;
  line-height: 1.5;
}

/* Formulario de entrada */
.search-form-wrapper {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.input-domain {
  flex: 1 1 0%;
  padding: 0.85rem 1.25rem;
  font-size: 1rem;
  font-family: var(--font-mono);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  outline: none;
  transition: var(--transition-fast);
  min-height: 48px;
}

.input-domain:focus {
  border-color: var(--accent-green);
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.btn-audit {
  background: var(--accent-green);
  color: #0b0f19;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  border: none;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
  min-height: 48px;
  white-space: nowrap;
}

.btn-audit:hover {
  filter: brightness(1.1);
}

.btn-audit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Presets */
.presets-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.btn-preset-domain {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-preset-domain:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

/* Spinner / Loader */
.audit-loader-box {
  display: none;
  text-align: center;
  padding: 3rem 1rem;
}

.spinner-circle {
  width: 44px;
  height: 44px;
  border: 4px solid var(--border-color);
  border-top-color: var(--accent-green);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}

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

/* Alertas de error */
.alert-box {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
  font-size: 0.92rem;
  line-height: 1.5;
}

.alert-danger {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
}

/* Dashboard de resultados y calificación */
.grade-hero-box {
  display: flex;
  align-items: center;
  gap: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}

.grade-circle {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 0 25px rgba(0, 0, 0, 0.3);
}

.grade-a-plus, .grade-a {
  background: rgba(16, 185, 129, 0.2);
  color: var(--accent-green);
  border: 3px solid var(--accent-green);
  box-shadow: 0 0 25px rgba(16, 185, 129, 0.3);
}

.grade-b {
  background: rgba(59, 130, 246, 0.2);
  color: var(--accent-blue);
  border: 3px solid var(--accent-blue);
  box-shadow: 0 0 25px rgba(59, 130, 246, 0.3);
}

.grade-c {
  background: rgba(245, 158, 11, 0.2);
  color: var(--accent-yellow);
  border: 3px solid var(--accent-yellow);
  box-shadow: 0 0 25px rgba(245, 158, 11, 0.3);
}

.grade-d, .grade-f {
  background: rgba(239, 68, 68, 0.2);
  color: var(--accent-red);
  border: 3px solid var(--accent-red);
  box-shadow: 0 0 25px rgba(239, 68, 68, 0.3);
}

.grade-info {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.grade-info h3 {
  font-size: 1.4rem;
}

.grade-info p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

.meta-stats-strip {
  display: flex;
  gap: 1.5rem;
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.meta-stats-strip span strong {
  color: var(--text-primary);
  font-family: var(--font-mono);
}

/* Tarjeta SSL */
.ssl-card-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.ssl-info-text {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.ssl-info-text strong {
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ssl-info-text span {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* Tarjetas de evaluación de cabeceras */
.headers-cards-grid {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2rem;
}

.header-eval-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: var(--transition-fast);
}

.card-pass { border-left: 4px solid var(--accent-green); }
.card-warning { border-left: 4px solid var(--accent-yellow); }
.card-fail { border-left: 4px solid var(--accent-red); }

.header-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-title-box {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.status-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 800;
}

.status-icon-pass { background: rgba(16, 185, 129, 0.2); color: var(--accent-green); }
.status-icon-warning { background: rgba(245, 158, 11, 0.2); color: var(--accent-yellow); }
.status-icon-fail { background: rgba(239, 68, 68, 0.2); color: var(--accent-red); }

.header-name {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.98rem;
}

.header-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.header-val-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0.45rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-primary);
  overflow-x: auto;
  word-break: break-all;
}

.status-pill {
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.status-pass { background: rgba(16, 185, 129, 0.2); color: var(--accent-green); }
.status-warning { background: rgba(245, 158, 11, 0.2); color: var(--accent-yellow); }
.status-fail { background: rgba(239, 68, 68, 0.2); color: var(--accent-red); }

/* Snippets de configuración */
.snippets-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-top: 1.5rem;
}

.snippets-nav {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.btn-snippet-tab {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-snippet-tab.active {
  border-color: var(--accent-green);
  color: var(--accent-green);
  background: var(--bg-card-hover);
}

.snippet-pane {
  display: none;
  position: relative;
}

.snippet-pane.active {
  display: block;
}

.code-container {
  position: relative;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
}

.code-container pre {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #e2e8f0;
  line-height: 1.5;
  overflow-x: auto;
}

.btn-copy-snippet {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.78rem;
  padding: 0.35rem 0.65rem;
  border-radius: 4px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: var(--transition-fast);
}

.btn-copy-snippet:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

/* Toast */
.app-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #111827;
  color: #f9fafb;
  border: 1px solid var(--accent-green);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  z-index: 10000;
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}

.app-toast.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  padding: 1rem;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title { font-size: 1.2rem; }

.modal-btn-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.modal-btn-close:hover { color: var(--text-primary); background: var(--bg-card); }

.modal-body {
  padding: 1.5rem;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
}

.btn-primary {
  background: var(--accent-green);
  color: #0b0f19;
  font-weight: 700;
  border: none;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
  .search-form-wrapper {
    flex-direction: column;
  }
  .grade-hero-box {
    flex-direction: column;
    text-align: center;
  }
  .meta-stats-strip {
    flex-direction: column;
    gap: 0.5rem;
  }
  .ssl-card-box {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}