/* ============================================================
   RAXISLAB — css/pdf.css — Estilos compartidos para guías PDF
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

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

:root {
  --black:   #020206;
  --navy:    #06060f;
  --card:    #0c0c1a;
  --border:  rgba(0,200,255,0.18);
  --accent:  #00C8FF;
  --accent2: #0064FF;
  --green:   #00C864;
  --orange:  #FFA000;
  --purple:  #8B5CF6;
  --text:    #F0F0F8;
  --mid:     #A0A8B4;
  --muted:   #5A6470;
  --mono:    'Space Mono', monospace;
  --sans:    'Space Grotesk', sans-serif;
}

body {
  font-family: var(--sans);
  background: var(--black);
  color: var(--text);
  line-height: 1.65;
  font-size: 15px;
}

/* ── SCREEN layout ── */
.pdf-wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 0 80px;
}

/* ── TOP BAR ── */
.pdf-topbar {
  background: var(--navy);
  border-bottom: 1px solid var(--border);
  padding: 14px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}
.pdf-topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text);
  text-decoration: none;
}
.pdf-topbar-actions {
  display: flex;
  gap: 10px;
}
.pdf-btn-download {
  padding: 9px 20px;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: #000;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.2s;
}
.pdf-btn-download:hover { opacity: 0.88; }
.pdf-btn-back {
  padding: 9px 16px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  color: var(--mid);
  font-family: var(--sans);
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.2s;
}
.pdf-btn-back:hover { border-color: var(--accent); color: var(--accent); }

/* ── COVER ── */
.pdf-cover {
  padding: 70px 60px 60px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.pdf-cover::before {
  content: '';
  position: absolute;
  top: -100px; right: -80px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,200,255,0.08), transparent 70%);
  pointer-events: none;
}
.pdf-cover-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(0,200,255,0.25);
  background: rgba(0,200,255,0.06);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
}
.pdf-cover-icon {
  font-size: 56px;
  margin-bottom: 20px;
  display: block;
}
.pdf-cover-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.pdf-cover-title span {
  background: linear-gradient(90deg, #00C8FF, #0064FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.pdf-cover-desc {
  font-size: 16px;
  color: var(--mid);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 32px;
}
.pdf-cover-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.pdf-cover-meta-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  color: var(--muted);
  font-family: var(--mono);
}
.pdf-cover-meta-item span:first-child { font-size: 14px; }

/* ── BODY ── */
.pdf-body {
  padding: 48px 60px;
}

/* Section */
.pdf-section {
  margin-bottom: 48px;
}
.pdf-section-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.pdf-section-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.pdf-section-body {
  font-size: 14px;
  color: var(--mid);
  line-height: 1.8;
}
.pdf-section-body p { margin-bottom: 12px; }
.pdf-section-body p:last-child { margin-bottom: 0; }

/* Callout box */
.pdf-callout {
  background: rgba(0,200,255,0.05);
  border: 1px solid rgba(0,200,255,0.18);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  padding: 16px 20px;
  margin: 20px 0;
  font-size: 14px;
  color: var(--text);
  line-height: 1.7;
}
.pdf-callout-warn {
  background: rgba(255,160,0,0.05);
  border-color: rgba(255,160,0,0.3);
  border-left-color: var(--orange);
}
.pdf-callout-green {
  background: rgba(0,200,100,0.05);
  border-color: rgba(0,200,100,0.25);
  border-left-color: var(--green);
}
.pdf-callout strong { color: var(--accent); }
.pdf-callout-warn strong { color: var(--orange); }
.pdf-callout-green strong { color: var(--green); }

/* Steps */
.pdf-steps { display: flex; flex-direction: column; gap: 20px; }
.pdf-step {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.pdf-step-num {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(0,200,255,0.1);
  border: 1.5px solid rgba(0,200,255,0.3);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
}
.pdf-step-content { flex: 1; }
.pdf-step-title { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.pdf-step-body { font-size: 13px; color: var(--mid); line-height: 1.75; }

/* Checklist */
.pdf-checklist { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.pdf-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--mid);
  line-height: 1.6;
}
.pdf-checklist li::before {
  content: '☐';
  font-size: 16px;
  color: var(--accent);
  flex-shrink: 0;
  line-height: 1.3;
}
.pdf-checklist.done li::before { content: '✓'; color: var(--green); }

/* Cards grid */
.pdf-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
  margin-top: 16px;
}
.pdf-card {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 12px;
  padding: 20px;
}
.pdf-card-icon { font-size: 24px; margin-bottom: 10px; }
.pdf-card-title { font-size: 14px; font-weight: 700; margin-bottom: 8px; }
.pdf-card-body { font-size: 12px; color: var(--mid); line-height: 1.7; }

/* Table */
.pdf-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-top: 16px;
}
.pdf-table th {
  background: rgba(0,200,255,0.07);
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-family: var(--mono);
}
.pdf-table td {
  border: 1px solid rgba(255,255,255,0.05);
  padding: 10px 14px;
  color: var(--mid);
  line-height: 1.5;
}
.pdf-table tr:nth-child(even) td { background: rgba(255,255,255,0.02); }

/* Highlight text */
.hl-accent { color: var(--accent); }
.hl-green  { color: var(--green); }
.hl-orange { color: var(--orange); }
.hl-bold   { font-weight: 700; color: var(--text); }

/* Divider */
.pdf-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin: 40px 0;
}

/* Big quote */
.pdf-quote {
  border-left: 3px solid var(--accent);
  padding: 16px 24px;
  margin: 24px 0;
  font-size: 18px;
  font-weight: 600;
  font-style: italic;
  color: var(--text);
  line-height: 1.5;
}
.pdf-quote-author {
  display: block;
  font-size: 12px;
  font-style: normal;
  color: var(--muted);
  margin-top: 8px;
  font-family: var(--mono);
}

/* Formula blocks */
.pdf-formula {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 16px 0;
  text-align: center;
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
}

/* Footer */
.pdf-footer {
  padding: 32px 60px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.pdf-footer-brand {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}
.pdf-footer-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--mid);
}
.pdf-footer-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

/* ── LOADING OVERLAY for PDF generation ── */
.pdf-loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2,2,6,0.92);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  backdrop-filter: blur(6px);
}
.pdf-loading-spinner {
  width: 52px; height: 52px;
  border: 3px solid rgba(0,200,255,0.15);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.pdf-loading-text {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--mid);
  letter-spacing: 0.08em;
}
.pdf-loading-sub {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  max-width: 260px;
}

/* ── PRINT STYLES ── */
@media print {
  body { background: white; color: #111; }
  :root {
    --black: white; --navy: white; --card: #f8f8f8;
    --border: #ddd; --accent: #0064CC; --accent2: #004499;
    --green: #006633; --orange: #CC6600; --text: #111;
    --mid: #444; --muted: #888;
  }
  .pdf-topbar { display: none; }
  .pdf-loading-overlay { display: none; }
  .pdf-cover::before { display: none; }
  .pdf-cover-title span {
    -webkit-text-fill-color: #0064CC;
    background: none;
    color: #0064CC;
  }
  .pdf-card { border-color: #ddd; }
  .pdf-callout { border-color: #bde; border-left-color: #0064CC; background: #f0f8ff; }
  .pdf-callout-warn { border-color: #f0d090; border-left-color: #CC6600; background: #fff8f0; }
  .pdf-callout-green { border-color: #b0e0c0; border-left-color: #006633; background: #f0fff5; }
  .pdf-formula { color: #0064CC; border-color: #bde; background: #f0f8ff; }
  .pdf-table th { background: #e8f0ff; color: #0064CC; }
  .pdf-step-num { background: #e8f0ff; border-color: #bde; color: #0064CC; }
  .pdf-quote { border-left-color: #0064CC; }
  @page { margin: 20mm; }
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .pdf-cover, .pdf-body, .pdf-footer { padding-left: 24px; padding-right: 24px; }
  .pdf-topbar { padding: 12px 20px; }
  .pdf-cover-icon { font-size: 40px; }
  .pdf-cover-title { font-size: 26px; }
  .pdf-cards { grid-template-columns: 1fr; }
}