/* ==========================================================================
   FACILITO B2B - DESIGN SYSTEM & STYLES (DARK OBSIDIAN / INSTITUTIONAL SAAS)
   Grado: Linear / Vercel / Raycast / Stripe
   ========================================================================== */

:root {
  /* Surface Tokens (Obsidian Spectrum) */
  --bg-canvas: #07080B;
  --bg-surface: #0C0F17;
  --bg-surface-elevated: #111520;
  --bg-surface-card: #151A27;
  --bg-surface-card-hover: #192030;
  --bg-surface-glass: rgba(12, 15, 23, 0.75);

  /* Hairline Borders */
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-medium: rgba(255, 255, 255, 0.12);
  --border-hover: rgba(56, 189, 248, 0.35);
  --border-focus: rgba(56, 189, 248, 0.6);

  /* Typography Colors */
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-dim: #475569;

  /* Controlled Accents (Calibrated HSL) */
  --accent-cyan: #38BDF8;
  --accent-cyan-glow: rgba(56, 189, 248, 0.12);
  --accent-cyan-border: rgba(56, 189, 248, 0.25);
  --accent-emerald: #10B981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.12);
  --accent-amber: #F59E0B;
  --accent-rose: #F43F5E;

  /* Typography Stacks */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Plus Jakarta Sans', var(--font-sans);
  --font-mono: 'JetBrains Mono', monospace;

  /* Transitions & Easings */
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.15s var(--ease-spring);
  --transition-smooth: 0.25s var(--ease-spring);
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-canvas);
}

body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14.5px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ================= AMBIENT BACKGROUND GLOW ================= */
.ambient-glow-top {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1200px;
  height: 480px;
  background: radial-gradient(circle at 50% 0%, rgba(56, 189, 248, 0.08) 0%, rgba(16, 185, 129, 0.03) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ================= SVG ICON HELPERS ================= */
.icon-svg {
  display: inline-block;
  width: 18px;
  height: 18px;
  stroke-width: 1.75;
  stroke: currentColor;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
  vertical-align: middle;
}

.icon-svg.sm {
  width: 14px;
  height: 14px;
}

.icon-svg.md {
  width: 20px;
  height: 20px;
}

.icon-svg.lg {
  width: 24px;
  height: 24px;
}

/* ================= NAVBAR ================= */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 14px 28px;
  transition: border-color var(--transition-fast);
}

.nav-container {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.brand-badge-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.15) 0%, rgba(16, 185, 129, 0.1) 100%);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.02em;
}

.accent-cyan {
  color: var(--accent-cyan);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ================= BUTTONS ================= */
.btn-nav-login {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.btn-nav-login:hover {
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
}

.btn-primary {
  background: var(--accent-cyan);
  color: #040810;
  text-decoration: none;
  font-weight: 600;
  font-size: 13.5px;
  padding: 9px 18px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-smooth);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.2);
  cursor: pointer;
}

.btn-primary:hover {
  background: #7DD3FC;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(56, 189, 248, 0.35);
}

.btn-secondary {
  background: var(--bg-surface-card);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 13.5px;
  padding: 9px 18px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-smooth);
}

.btn-secondary:hover {
  background: var(--bg-surface-card-hover);
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-1px);
}

.btn-whatsapp-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: var(--accent-emerald);
  padding: 9px 16px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13.5px;
  text-decoration: none;
  transition: all var(--transition-smooth);
}

.btn-whatsapp-outline:hover {
  background: rgba(16, 185, 129, 0.16);
  border-color: rgba(16, 185, 129, 0.45);
  box-shadow: 0 0 16px var(--accent-emerald-glow);
  transform: translateY(-1px);
}

/* ================= HERO SECTION ================= */
.hero-section {
  padding: 72px 24px 50px;
  max-width: 1240px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(56, 189, 248, 0.07);
  border: 1px solid var(--accent-cyan-border);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 20px;
  letter-spacing: 0.03em;
}

.pulse-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: radar-pulse 2s infinite ease-in-out;
}

@keyframes radar-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.25); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  max-width: 860px;
}

.hero-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 720px;
  margin-bottom: 36px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 48px;
}

/* ================= LIVE PRICE DISPERSION EXAMPLE COMPONENT ================= */
.hero-comparison-banner {
  background: linear-gradient(180deg, rgba(17, 21, 32, 0.8) 0%, rgba(12, 15, 23, 0.95) 100%);
  border: 1px solid var(--border-medium);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5), 0 0 1px rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  position: relative;
}

.comparison-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.comparison-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.comparison-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.comparison-badge {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #FCA5A5;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 50px 1fr;
  align-items: center;
  gap: 16px;
}

.station-mock {
  background: var(--bg-surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 18px 20px;
  transition: border-color var(--transition-smooth);
}

.station-mock.bad {
  border-color: rgba(239, 68, 68, 0.3);
  background: rgba(239, 68, 68, 0.02);
}

.station-mock.good {
  border-color: rgba(16, 185, 129, 0.35);
  background: rgba(16, 185, 129, 0.03);
}

.mock-tag {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 8px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.mock-tag.expensive { background: rgba(239, 68, 68, 0.15); color: #F87171; }
.mock-tag.cheap { background: rgba(16, 185, 129, 0.15); color: #34D399; }

.mock-name {
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.mock-location {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.mock-price {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.mock-price.red { color: #F87171; }
.mock-price.green { color: var(--accent-emerald); }

.comparison-vs {
  text-align: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 13px;
  color: var(--text-dim);
}

.comparison-footer {
  margin-top: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.06);
  border: 1px dashed rgba(16, 185, 129, 0.25);
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 13px;
  color: #D1FAE5;
}

/* ================= STATS STRIP ================= */
.stats-strip {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 36px 24px;
}

.stats-container {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  text-align: center;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 2px;
  letter-spacing: -0.02em;
}

.stat-desc {
  font-size: 12.5px;
  color: var(--text-secondary);
}

/* ================= SECTIONS COMMON ================= */
.section {
  padding: 84px 24px;
  max-width: 1240px;
  margin: 0 auto;
  position: relative;
}

.section-tag {
  color: var(--accent-cyan);
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 14px;
  line-height: 1.25;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 15.5px;
  max-width: 680px;
  margin-bottom: 44px;
  line-height: 1.6;
}

/* ================= PROBLEM SECTION ================= */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.problem-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 28px;
  transition: all var(--transition-smooth);
}

.problem-card:hover {
  border-color: rgba(239, 68, 68, 0.35);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.card-icon-wrap {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.card-icon-wrap.danger {
  background: rgba(239, 68, 68, 0.1);
  color: #F87171;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.card-icon-wrap.tech {
  background: var(--accent-cyan-glow);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan-border);
}

.problem-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.problem-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ================= CAPABILITIES / FEATURES ================= */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 28px;
  transition: all var(--transition-smooth);
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45), 0 0 1px rgba(56, 189, 248, 0.2);
}

.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-benefit {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ================= USE CASES ================= */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.usecase-box {
  background: var(--bg-surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 24px;
  border-left: 3px solid var(--accent-cyan);
  transition: all var(--transition-fast);
}

.usecase-box:hover {
  background: var(--bg-surface-card-hover);
  border-color: var(--border-medium);
}

.usecase-fuel-pill {
  font-size: 10.5px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 7px;
  border-radius: 4px;
  color: #CBD5E1;
  display: inline-block;
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.usecase-box h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.usecase-box p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ================= SAVINGS CALCULATOR ================= */
.calculator-card {
  background: linear-gradient(135deg, #0D121B 0%, #080A0E 100%);
  border: 1px solid var(--border-medium);
  border-radius: 14px;
  padding: 36px;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.6);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.calc-controls h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.slider-group {
  margin-bottom: 24px;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 12.5px;
  font-weight: 600;
}

.slider-val {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-weight: 700;
}

.range-slider {
  width: 100%;
  accent-color: var(--accent-cyan);
  cursor: pointer;
}

.fuel-options {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.fuel-btn {
  flex: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.fuel-btn.active {
  background: var(--accent-cyan-glow);
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.calc-result-pane {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: center;
}

.result-label {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.result-amount {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 800;
  color: var(--accent-emerald);
  margin: 10px 0;
  letter-spacing: -0.02em;
}

.result-sub {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ================= FAQ SECTION ================= */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.faq-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 24px;
}

.faq-card h4 {
  font-size: 14.5px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.faq-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ================= CTA BANNER ================= */
.cta-banner {
  background: linear-gradient(135deg, #101624 0%, #07090E 100%);
  border: 1px solid var(--border-hover);
  border-radius: 14px;
  padding: 56px 36px;
  text-align: center;
  max-width: 1040px;
  margin: 0 auto 80px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 30px rgba(56, 189, 248, 0.1);
}

.cta-banner h2 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.cta-banner p {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 28px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ================= FOOTER ================= */
.footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  padding: 36px 24px;
  font-size: 12.5px;
  color: var(--text-muted);
}

.footer-container {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--text-primary);
}

/* ================= RESPONSIVE ================= */
@media (max-width: 900px) {
  .hero-title { font-size: 34px; }
  .comparison-grid { grid-template-columns: 1fr; }
  .calculator-card { grid-template-columns: 1fr; gap: 28px; }
  .faq-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}