/* ==========================================================
   AUDITOR SEO & AI SEO — ESTILO ARCHÉ & BIBLIOTECA NOBLE
   Paleta: Carbón pizarra, verde musgo noble y pergamino
   ========================================================== */

:root {
  --bg-color: #101413;
  --bg-subtle: #141a18;
  --card-bg: #171f1c;
  --card-border: #232e29;
  --card-hover: #1c2622;

  --text-main: #f2f5f3;
  --text-muted: #9ba8a1;
  --text-dim: #65746c;

  /* Verdes Musgo & Bosque Noble */
  --primary: #2d6a45;
  --primary-hover: #388255;
  --primary-light: #52b77a;
  --primary-glow: rgba(45, 106, 69, 0.35);

  --accent-leaf: #10b981;
  --accent-leaf-bg: rgba(16, 185, 129, 0.12);

  --warning: #d97706;
  --warning-bg: rgba(217, 119, 6, 0.12);

  --danger: #dc2626;
  --danger-bg: rgba(220, 38, 38, 0.12);

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: radial-gradient(circle at 50% 0%, rgba(45, 106, 69, 0.12) 0%, transparent 65%);
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.topbar {
  border-bottom: 1px solid var(--card-border);
  background: rgba(16, 20, 19, 0.85);
  backdrop-filter: blur(14px);
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 1.1rem 0;
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.brand-symbol {
  color: var(--primary-light);
  font-size: 1.2rem;
}

.brand-name .highlight {
  color: var(--primary-light);
}

.brand-by {
  font-size: 0.72rem;
  font-weight: 600;
  background: rgba(45, 106, 69, 0.2);
  color: #a3e635;
  border: 1px solid rgba(82, 183, 122, 0.3);
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  letter-spacing: 0.05em;
  margin-left: 0.3rem;
}

.tagline-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Hero Section */
.hero-section {
  text-align: center;
  padding: 4.5rem 1.5rem 2.5rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: #a3e635;
  background: rgba(45, 106, 69, 0.15);
  border: 1px solid rgba(82, 183, 122, 0.3);
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1.6rem;
  letter-spacing: 0.02em;
}

.badge-dot {
  width: 7px;
  height: 7px;
  background-color: #a3e635;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px #a3e635;
}

.hero-title {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 1.1rem;
  background: linear-gradient(135deg, #f2f5f3 30%, #a7cbb5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subtitle {
  color: var(--text-muted);
  font-size: 1.12rem;
  max-width: 720px;
  margin: 0 auto 2.5rem;
  line-height: 1.65;
}

/* Formulario */
.audit-form {
  max-width: 640px;
  margin: 0 auto;
}

.input-wrapper {
  display: flex;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 0.4rem;
  box-shadow: 0 12px 30px -8px rgba(0, 0, 0, 0.6);
  transition: var(--transition);
}

.input-wrapper:focus-within {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.input-wrapper input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 1.05rem;
  padding: 0.85rem 1.2rem;
}

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

.btn-primary {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.7rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 4px 14px rgba(45, 106, 69, 0.35);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Quick Examples */
.quick-examples {
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-size: 0.88rem;
}

.example-label {
  color: var(--text-dim);
}

.pill-example {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  border-radius: 999px;
  padding: 0.25rem 0.85rem;
  cursor: pointer;
  font-size: 0.85rem;
  transition: var(--transition);
}

.pill-example:hover {
  background: rgba(45, 106, 69, 0.2);
  color: #fff;
  border-color: var(--primary-light);
}

/* Loading & Error States */
.hidden {
  display: none !important;
}

.loader-card, .error-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 3.5rem 2rem;
  text-align: center;
  margin: 2rem auto;
  max-width: 520px;
}

.spinner-ring {
  width: 54px;
  height: 54px;
  border: 4px solid rgba(82, 183, 122, 0.2);
  border-top-color: var(--primary-light);
  border-radius: 50%;
  animation: spin 0.85s linear infinite;
  margin: 0 auto 1.5rem;
}

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

.error-icon {
  font-size: 2.8rem;
  display: block;
  margin-bottom: 0.8rem;
}

.btn-secondary {
  margin-top: 1.5rem;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  border: 1px solid var(--card-border);
  padding: 0.65rem 1.3rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* Cards & Report */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 2rem;
}

.report-header {
  display: flex;
  align-items: center;
  gap: 2.2rem;
  margin-bottom: 1.6rem;
  flex-wrap: wrap;
}

.score-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
}

.gauge-wrapper {
  position: relative;
  width: 136px;
  height: 136px;
}

.score-gauge {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.gauge-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.07);
  stroke-width: 12;
}

.gauge-fg {
  fill: none;
  stroke: var(--primary-light);
  stroke-width: 12;
  stroke-linecap: round;
  stroke-dasharray: 427;
  stroke-dashoffset: 427;
  transition: stroke-dashoffset 1.2s ease-out, stroke 0.4s ease;
}

.gauge-inner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.score-number {
  font-size: 2.3rem;
  font-weight: 800;
  line-height: 1;
  display: block;
  color: #fff;
}

.score-max {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.grade-badge {
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.3rem 0.95rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.grade-badge.excelente {
  background: var(--accent-leaf-bg);
  color: var(--accent-leaf);
  border: 1px solid var(--accent-leaf);
}
.grade-badge.bueno {
  background: rgba(45, 106, 69, 0.25);
  color: #86efac;
  border: 1px solid #4ade80;
}
.grade-badge.mejorable {
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid var(--warning);
}
.grade-badge.critico {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid var(--danger);
}

.report-meta {
  flex: 1;
  min-width: 260px;
}

.meta-label {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.report-url {
  font-size: 1.55rem;
  font-weight: 700;
  word-break: break-all;
  margin: 0.2rem 0 0.8rem;
  color: #fff;
}

.meta-details {
  display: flex;
  gap: 1.3rem;
  flex-wrap: wrap;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.report-actions {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.btn-action {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--card-border);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 0.65rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: var(--transition);
}

.btn-action:hover {
  background: rgba(45, 106, 69, 0.2);
  border-color: var(--primary-light);
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.6rem;
}

.metric-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 1.3rem;
  text-align: center;
}

.metric-num {
  display: block;
  font-size: 2.1rem;
  font-weight: 800;
  margin-bottom: 0.2rem;
}

.metric-pass .metric-num { color: #4ade80; }
.metric-warn .metric-num { color: var(--warning); }
.metric-fail .metric-num { color: var(--danger); }

.metric-title {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Critical Box */
.critical-box {
  background: rgba(220, 38, 38, 0.08);
  border: 1px solid rgba(220, 38, 38, 0.3);
  border-radius: var(--radius);
  padding: 1.6rem;
  margin-bottom: 1.6rem;
}

.critical-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
  color: #f87171;
}

.critical-item {
  background: rgba(0, 0, 0, 0.25);
  border-left: 4px solid var(--danger);
  padding: 1rem;
  border-radius: 4px;
  margin-bottom: 0.8rem;
}

.critical-item-title {
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.2rem;
}

.critical-item-sol {
  font-size: 0.9rem;
  color: #fca5a5;
  margin-top: 0.4rem;
}

/* Categories */
.category-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin-bottom: 1.3rem;
  overflow: hidden;
}

.category-header {
  padding: 1.25rem 1.6rem;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--card-border);
}

.category-title {
  font-size: 1.18rem;
  font-weight: 700;
  color: #fff;
}

.category-desc {
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.test-item {
  padding: 1.2rem 1.6rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.test-item:last-child {
  border-bottom: none;
}

.test-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.test-name {
  font-weight: 600;
  font-size: 1rem;
  color: #fff;
}

.status-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.22rem 0.65rem;
  border-radius: 4px;
  text-transform: uppercase;
  flex-shrink: 0;
}

.status-badge.pass { background: var(--accent-leaf-bg); color: #4ade80; }
.status-badge.warning { background: var(--warning-bg); color: var(--warning); }
.status-badge.fail { background: var(--danger-bg); color: var(--danger); }

.test-value {
  font-family: monospace;
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  color: #86efac;
  display: inline-block;
  margin: 0.45rem 0;
}

.test-summary {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.test-details {
  margin-top: 0.65rem;
  padding-top: 0.65rem;
  border-top: 1px dashed rgba(255, 255, 255, 0.06);
  font-size: 0.85rem;
}

.test-why {
  color: #d1d5db;
  margin-bottom: 0.35rem;
}

.test-sol {
  color: #86efac;
  font-weight: 500;
}

/* Conversion Card */
.conversion-card {
  margin: 3.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  background: linear-gradient(135deg, rgba(45, 106, 69, 0.22) 0%, rgba(23, 31, 28, 0.95) 100%);
  border-color: rgba(82, 183, 122, 0.35);
  flex-wrap: wrap;
}

.conversion-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: #a3e635;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.4rem;
  display: inline-block;
}

.conversion-content h3 {
  font-size: 1.35rem;
  margin-bottom: 0.45rem;
  color: #fff;
}

.conversion-content p {
  color: var(--text-muted);
  font-size: 0.96rem;
  max-width: 580px;
}

.cta-btn {
  text-decoration: none;
  white-space: nowrap;
}

/* Footer */
.footer {
  margin-top: auto;
  border-top: 1px solid var(--card-border);
  padding: 2.2rem 0;
  text-align: center;
  font-size: 0.86rem;
  color: var(--text-dim);
}

.footer-copy {
  color: var(--text-muted);
  margin-bottom: 0.3rem;
}

.footer-copy strong {
  color: var(--text-main);
  letter-spacing: 0.05em;
}

/* ==========================================================
   ESTILOS DE IMPRESIÓN (PDF LIMPIO Y PROFESIONAL)
   ========================================================== */
@media print {
  body {
    background: #fff !important;
    color: #111 !important;
    background-image: none !important;
  }

  .topbar, .hero-section, .quick-examples, .report-actions, .conversion-card, .footer {
    display: none !important;
  }

  .container {
    max-width: 100% !important;
    padding: 0 !important;
  }

  .card, .category-card {
    background: #fff !important;
    border: 1px solid #ddd !important;
    color: #111 !important;
    box-shadow: none !important;
    break-inside: avoid;
  }

  .report-url {
    color: #000 !important;
  }

  .gauge-bg {
    stroke: #eee !important;
  }

  .test-name, .test-why {
    color: #222 !important;
  }

  .test-summary {
    color: #555 !important;
  }

  .test-value {
    background: #f3f4f6 !important;
    color: #14532d !important;
    border: 1px solid #e5e7eb !important;
  }
}