:root {
  /* Light Theme Defaults (Lonrú Editorial Style) */
  --bg-color: #f8fafc;
  --bg-gradient: radial-gradient(circle at 15% 15%, rgba(37, 99, 235, 0.05) 0%, transparent 40%),
                 radial-gradient(circle at 85% 85%, rgba(2, 132, 199, 0.05) 0%, transparent 40%);
  --panel-bg: rgba(255, 255, 255, 0.85);
  --panel-border: rgba(226, 232, 240, 0.9);
  --panel-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.04), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
  --card-bg: rgba(241, 245, 249, 0.6);
  --card-border: rgba(203, 213, 225, 0.6);
  --input-bg: #ffffff;
  --input-border: #cbd5e1;
  
  --accent-blue: #2563eb;
  --accent-cyan: #0284c7;
  --accent-green: #16a34a;
  --accent-warn: #d97706;
  --accent-danger: #dc2626;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;
  
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-title: 'Outfit', sans-serif;
}

[data-theme="dark"] {
  /* Dark Theme Overrides */
  --bg-color: #090d16;
  --bg-gradient: radial-gradient(circle at 15% 15%, rgba(59, 130, 246, 0.12) 0%, transparent 40%),
                 radial-gradient(circle at 85% 85%, rgba(6, 182, 212, 0.08) 0%, transparent 40%);
  --panel-bg: rgba(17, 24, 39, 0.75);
  --panel-border: rgba(255, 255, 255, 0.08);
  --panel-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
  --card-bg: rgba(15, 23, 42, 0.6);
  --card-border: rgba(255, 255, 255, 0.06);
  --input-bg: #111827;
  --input-border: rgba(255, 255, 255, 0.12);

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

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
}

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

body {
  background-color: var(--bg-color);
  background-image: var(--bg-gradient);
  color: var(--text-main);
  font-family: var(--font-main);
  min-height: 100vh;
  padding: 24px;
  line-height: 1.5;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.app-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Header */
.top-header {
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border);
  box-shadow: var(--panel-shadow);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.brand-badge {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 14px;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.tool-tag {
  background: rgba(37, 99, 235, 0.1);
  color: var(--accent-blue);
  border: 1px solid rgba(37, 99, 235, 0.25);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  text-transform: uppercase;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-secondary {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background 0.2s, border-color 0.2s;
}

.btn-secondary:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.theme-toggle-btn {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background 0.2s, border-color 0.2s;
}

.theme-toggle-btn:hover {
  border-color: var(--accent-blue);
}

.main-title {
  font-family: var(--font-title);
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--text-muted);
  font-size: 14px;
  max-width: 850px;
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 24px;
}

@media (max-width: 900px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

/* Panels */
.panel {
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border);
  box-shadow: var(--panel-shadow);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--panel-border);
  padding-bottom: 12px;
}

.panel-header h2 {
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 600;
}

.step-indicator {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-dim);
  background: var(--card-bg);
  padding: 2px 8px;
  border-radius: 4px;
}

.live-badge {
  color: var(--accent-green);
  background: rgba(22, 163, 74, 0.12);
}

/* Form Controls */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.val-badge {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-cyan);
  background: rgba(2, 132, 199, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
}

.select-input {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-main);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
}

.select-input:focus {
  border-color: var(--accent-blue);
}

.slider-input {
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--input-border);
  outline: none;
  cursor: pointer;
}

.slider-input::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-blue);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(37, 99, 235, 0.4);
  transition: transform 0.1s;
}

.slider-input::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.slider-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-dim);
}

/* KPI Cards */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

@media (max-width: 600px) {
  .kpi-row {
    grid-template-columns: 1fr;
  }
}

.kpi-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.kpi-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.kpi-value {
  font-family: var(--font-title);
  font-size: 28px;
  font-weight: 700;
}

.kpi-sub {
  font-size: 11px;
  color: var(--text-dim);
}

.text-accent { color: var(--accent-cyan); }
.text-warn { color: var(--accent-warn); }
.text-green { color: var(--accent-green); }
.text-main { color: var(--text-main); }

/* Heatmap & Pipeline Steps */
.pipeline-status-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pipeline-status-container h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}

.pipeline-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

@media (max-width: 768px) {
  .pipeline-steps {
    grid-template-columns: 1fr 1fr;
  }
}

.pipeline-step {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.2s, background 0.2s;
}

.pipeline-step.active-target {
  border-color: var(--accent-blue);
  background: rgba(37, 99, 235, 0.08);
}

.step-num {
  font-family: var(--font-title);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-dim);
}

.step-info h4 {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.3;
}

.status-pill {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  margin-top: 4px;
  background: rgba(22, 163, 74, 0.12);
  color: var(--accent-green);
}

.status-warn {
  background: rgba(217, 119, 6, 0.12);
  color: var(--accent-warn);
}

.status-danger {
  background: rgba(220, 38, 38, 0.12);
  color: var(--accent-danger);
}

/* Recommendation Box */
.recommendation-box {
  background: var(--card-bg);
  border: 1px solid var(--accent-cyan);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.recommendation-box h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 8px;
}

.rec-icon {
  stroke: var(--accent-cyan);
}

.rec-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.rec-item {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.rec-item strong {
  color: var(--text-main);
}

.rec-bullet-svg {
  flex-shrink: 0;
  margin-top: 2px;
  stroke: var(--accent-blue);
}

/* Footer CTA */
.bottom-cta {
  background: var(--panel-bg);
  border: 1px solid var(--accent-blue);
  box-shadow: var(--panel-shadow);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

@media (max-width: 768px) {
  .bottom-cta {
    flex-direction: column;
    align-items: flex-start;
  }
}

.cta-content h3 {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
}

.cta-content p {
  font-size: 13px;
  color: var(--text-muted);
}

.btn-primary {
  background: var(--accent-blue);
  color: #ffffff;
  padding: 12px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  transition: opacity 0.2s, transform 0.1s;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* App Copyright & Active Architecture Footer */
.app-copyright-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 0 8px 0;
  border-top: 1px solid var(--panel-border);
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-dim);
}

.footer-status-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.active-architecture-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  color: var(--text-muted);
}

.active-architecture-status strong {
  color: var(--accent-cyan);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  display: inline-block;
  animation: pulseDot 1.8s infinite ease-in-out;
}

@keyframes pulseDot {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(22, 163, 74, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(22, 163, 74, 0); }
}

.vantagepoint-status {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dim);
}

.footer-copyright-row {
  text-align: center;
  font-size: 11px;
  color: var(--text-dim);
}

/* Print Stylesheet for PDF Brief Export */
@media print {
  body {
    background: #ffffff !important;
    color: #0f172a !important;
    padding: 0 !important;
  }
  .header-controls, .bottom-cta {
    display: none !important;
  }
  .panel {
    box-shadow: none !important;
    border: 1px solid #cbd5e1 !important;
    background: #ffffff !important;
  }
  .kpi-card {
    background: #f8fafc !important;
    border: 1px solid #cbd5e1 !important;
  }
}