/* ============================================
   BOXTECH — CooBook Landing Page Styles
   Matches coobook.org visual identity
   ============================================ */

/* --- RESET & BASE --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #0f1018;
  --bg-card: #14151f;
  --bg-card-hover: #1a1b2e;
  --bg-elevated: #1e1f33;
  --text-primary: #e8e9f0;
  --text-secondary: #9a9bb0;
  --text-muted: #5f6080;
  --accent-start: #4f7df7;
  --accent-end: #7c5bf5;
  --accent-glow: rgba(79, 125, 247, 0.15);
  --green: #34d399;
  --red: #f87171;
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-card: rgba(255, 255, 255, 0.08);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-width: 1140px;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  max-width: 100vw;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* --- NAVIGATION --- */
.cb-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0 24px;
}

.cb-nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.cb-logo img {
  height: 32px;
  width: auto;
}

.cb-nav-links {
  display: flex;
  gap: 32px;
}

.cb-nav-links a {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
  letter-spacing: 0.01em;
}

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

.cb-nav-cta {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  padding: 10px 22px;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  border-radius: 50px;
  color: #fff;
  transition: opacity 0.2s;
}

.cb-nav-cta:hover {
  opacity: 0.9;
}

/* --- HERO --- */
.bt-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 80px;
  max-width: var(--max-width);
  margin: 0 auto;
  gap: 60px;
}

.bt-hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(79, 125, 247, 0.08) 0%, transparent 70%);
  top: 10%;
  left: -10%;
  pointer-events: none;
}

.bt-hero-content {
  flex: 1;
  z-index: 1;
}

.bt-hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-start);
  background: var(--accent-glow);
  padding: 6px 16px;
  border-radius: 50px;
  border: 1px solid rgba(79, 125, 247, 0.2);
  margin-bottom: 28px;
}

.bt-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.bt-gradient-text {
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bt-hero-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 40px;
}

.bt-hero-stats {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-bottom: 40px;
}

.bt-stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
}

.bt-stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.bt-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-subtle);
}

.bt-hero-actions {
  display: flex;
  gap: 16px;
}

.bt-btn-primary {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  border-radius: 50px;
  color: #fff;
  transition: transform 0.2s, box-shadow 0.2s;
  display: inline-block;
}

.bt-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(79, 125, 247, 0.25);
}

.bt-btn-secondary {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  padding: 14px 32px;
  border: 1px solid var(--border-card);
  border-radius: 50px;
  color: var(--text-secondary);
  transition: border-color 0.2s, color 0.2s;
  display: inline-block;
}

.bt-btn-secondary:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
}

/* Hero Visual — 3D Box */
.bt-hero-visual {
  flex: 0 0 320px;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1;
}

.bt-box-3d {
  width: 220px;
  height: 220px;
  position: relative;
  transform-style: preserve-3d;
  transform: rotateX(-12deg) rotateY(-25deg);
  animation: bt-float 6s ease-in-out infinite;
}

@keyframes bt-float {
  0%, 100% { transform: rotateX(-12deg) rotateY(-25deg) translateY(0); }
  50% { transform: rotateX(-12deg) rotateY(-25deg) translateY(-14px); }
}

.bt-box-face {
  position: absolute;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(79, 125, 247, 0.15);
}

.bt-box-front {
  background: linear-gradient(160deg, rgba(20, 21, 35, 0.95), rgba(30, 31, 51, 0.9));
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  transform: translateZ(40px);
}

.bt-box-icon {
  font-size: 48px;
}

.bt-box-label {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.bt-box-status {
  font-size: 12px;
  color: var(--green);
  display: flex;
  align-items: center;
  gap: 6px;
}

.bt-pulse {
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: bt-pulse-anim 2s ease-in-out infinite;
}

@keyframes bt-pulse-anim {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); }
}

.bt-box-right {
  background: linear-gradient(180deg, rgba(15, 16, 28, 0.8), rgba(10, 10, 20, 0.9));
  width: 80px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  transform: rotateY(90deg) translateZ(180px) translateX(-70px);
}

.bt-box-top {
  background: linear-gradient(180deg, rgba(30, 31, 55, 0.7), rgba(20, 21, 40, 0.8));
  height: 80px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  transform: rotateX(90deg) translateZ(180px) translateY(-70px);
}

/* --- SECTIONS --- */
.bt-section {
  padding: 100px 24px;
}

.bt-section-dark {
  background: var(--bg-secondary);
}

.bt-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.bt-section-label {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-start);
  margin-bottom: 16px;
}

.bt-section h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.bt-section-intro {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 56px;
}

/* --- FEATURE CARDS --- */
.bt-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.bt-feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: border-color 0.3s, background 0.3s;
}

.bt-feature-card:hover {
  border-color: rgba(79, 125, 247, 0.15);
  background: var(--bg-card-hover);
}

.bt-feature-icon {
  font-size: 32px;
  margin-bottom: 18px;
}

.bt-feature-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

.bt-feature-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* --- STEPS --- */
.bt-steps {
  max-width: 680px;
  margin: 0 auto;
}

.bt-step {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

.bt-step-number {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  flex-shrink: 0;
  width: 64px;
}

.bt-step-content h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.bt-step-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.bt-step-connector {
  width: 2px;
  height: 40px;
  background: linear-gradient(180deg, var(--accent-start), transparent);
  margin-left: 31px;
  margin-top: 8px;
  margin-bottom: 8px;
  opacity: 0.3;
}

/* --- VERIFIERS --- */
.bt-verifiers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.bt-verifier-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: border-color 0.3s;
}

.bt-verifier-card:hover {
  border-color: rgba(79, 125, 247, 0.2);
}

.bt-verifier-badge {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--accent-start);
  margin-bottom: 8px;
}

.bt-verifier-type {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 10px;
}

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

.bt-verifier-boxtech {
  border-color: rgba(79, 125, 247, 0.2);
  background: linear-gradient(160deg, var(--bg-card), rgba(79, 125, 247, 0.04));
}

.bt-verifier-note {
  background: var(--accent-glow);
  border: 1px solid rgba(79, 125, 247, 0.12);
  border-radius: var(--radius-md);
  padding: 20px 28px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.bt-verifier-note strong {
  color: var(--text-primary);
}

/* --- COMPENSATION FLOW --- */
.bt-compensation-flow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 56px;
  flex-wrap: wrap;
  justify-content: center;
}

.bt-flow-step {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 22px 20px;
  text-align: center;
  flex: 1;
  min-width: 180px;
}

.bt-flow-icon {
  font-size: 28px;
  margin-bottom: 10px;
}

.bt-flow-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.bt-flow-text strong {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
}

.bt-flow-text span {
  font-size: 12px;
  color: var(--text-muted);
}

.bt-flow-arrow {
  font-size: 24px;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* --- CALCULATOR --- */
.bt-calculator {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 48px;
}

.bt-calculator h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
}

.bt-calculator-note {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 36px;
}

.bt-calc-controls {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-bottom: 36px;
}

.bt-calc-group label {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 10px;
}

.bt-range {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-elevated);
  border-radius: 3px;
  outline: none;
}

.bt-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(79, 125, 247, 0.3);
}

.bt-range::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  cursor: pointer;
  border: none;
}

.bt-calc-value {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 8px;
}

.bt-calc-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.bt-calc-result {
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}

.bt-calc-result-label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.bt-calc-result-value {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
}

.bt-calc-highlight {
  color: var(--green);
}

.bt-calc-disclaimer {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
  font-style: italic;
}

/* --- WHAT IT IS NOT / IS --- */
.bt-not-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.bt-not-card {
  background: var(--bg-card);
  border: 1px solid rgba(248, 113, 113, 0.1);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.bt-not-icon {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--red);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(248, 113, 113, 0.08);
  border-radius: 50%;
  margin-bottom: 16px;
}

.bt-not-card h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.bt-not-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.bt-is-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.bt-is-card {
  background: var(--bg-card);
  border: 1px solid rgba(52, 211, 153, 0.1);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.bt-is-icon {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--green);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(52, 211, 153, 0.08);
  border-radius: 50%;
  margin-bottom: 16px;
}

.bt-is-card h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.bt-is-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* --- FAQ --- */
.bt-faq-list {
  max-width: 740px;
}

.bt-faq-item {
  border-bottom: 1px solid var(--border-subtle);
}

.bt-faq-item summary {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  padding: 22px 0;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-primary);
  transition: color 0.2s;
}

.bt-faq-item summary::-webkit-details-marker {
  display: none;
}

.bt-faq-item summary::after {
  content: '+';
  font-size: 22px;
  font-weight: 300;
  color: var(--text-muted);
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 16px;
}

.bt-faq-item[open] summary::after {
  content: '−';
  color: var(--accent-start);
}

.bt-faq-item summary:hover {
  color: var(--accent-start);
}

.bt-faq-item p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  padding-bottom: 22px;
  max-width: 640px;
}

/* --- PRICING --- */
.bt-pricing-card {
  max-width: 520px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid rgba(79, 125, 247, 0.15);
  border-radius: var(--radius-xl);
  padding: 48px;
  text-align: center;
  position: relative;
}

.bt-pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #fff;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  padding: 6px 20px;
  border-radius: 50px;
  white-space: nowrap;
}

.bt-pricing-amount {
  margin-top: 16px;
  margin-bottom: 32px;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}

.bt-pricing-currency {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  color: var(--text-secondary);
}

.bt-pricing-number {
  font-family: var(--font-display);
  font-size: 72px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
}

.bt-pricing-period {
  font-size: 15px;
  color: var(--text-muted);
  margin-left: 4px;
}

.bt-countdown {
  margin-bottom: 28px;
  text-align: center;
}

.bt-countdown-label {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.bt-countdown-timer {
  display: flex;
  justify-content: center;
  gap: 16px;
}

.bt-countdown-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  min-width: 70px;
}

.bt-countdown-item span {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.bt-countdown-item small {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 4px;
}

.bt-countdown-launched {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--green);
  padding: 16px;
}

.bt-pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 36px;
}

.bt-pricing-features li {
  font-size: 15px;
  color: var(--text-secondary);
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 10px;
}

.bt-pricing-features li::before {
  content: '✓';
  color: var(--green);
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.bt-pricing-quantity {
  margin-bottom: 28px;
}

.bt-pricing-quantity label {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 12px;
}

.bt-quantity-selector {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 12px;
}

.bt-qty-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-card);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font-size: 22px;
  font-family: var(--font-display);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, background 0.2s;
}

.bt-qty-btn:hover {
  border-color: var(--accent-start);
  background: var(--accent-glow);
}

.bt-qty-value {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  min-width: 40px;
  text-align: center;
}

.bt-pricing-total {
  font-size: 16px;
  color: var(--text-secondary);
}

.bt-pricing-total strong {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 700;
}

.bt-btn-purchase {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  padding: 16px 48px;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  border: none;
  border-radius: 50px;
  color: #fff;
  cursor: pointer;
  width: 100%;
  transition: transform 0.2s, box-shadow 0.2s;
}

.bt-btn-purchase:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(79, 125, 247, 0.3);
}

.bt-pricing-note {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 16px;
}

/* --- CTA SECTION --- */
.bt-section-cta {
  text-align: center;
  padding: 120px 24px;
  background: linear-gradient(180deg, var(--bg-primary), var(--bg-secondary));
}

.bt-section-cta h2 {
  max-width: 640px;
  margin: 0 auto 20px;
}

.bt-section-cta p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.bt-btn-large {
  font-size: 17px;
  padding: 18px 40px;
}

/* --- FOOTER --- */
.bt-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 60px 24px 32px;
}

.bt-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.bt-footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 16px;
  line-height: 1.6;
}

.bt-footer-legal {
  font-size: 12px !important;
  margin-top: 8px !important;
}

.bt-footer-links h4 {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.bt-footer-links a {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  padding: 5px 0;
  transition: color 0.2s;
}

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

.bt-footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  text-align: center;
}

.bt-footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

/* --- RESPONSIVE --- */
@media (max-width: 900px) {
  .cb-nav-links {
      display: none;
  }

  .bt-hero {
      flex-direction: column;
      padding-top: 100px;
      min-height: auto;
      text-align: center;
  }

  .bt-hero-subtitle {
      margin: 0 auto 40px;
  }

  .bt-hero-stats {
      justify-content: center;
  }

  .bt-hero-actions {
      justify-content: center;
  }

  .bt-hero-visual {
      flex: none;
  }

  .bt-features-grid,
  .bt-not-grid {
      grid-template-columns: 1fr;
  }

  .bt-verifiers {
      grid-template-columns: repeat(2, 1fr);
  }

  .bt-is-grid {
      grid-template-columns: 1fr;
  }

  .bt-calc-results {
      grid-template-columns: 1fr;
  }

  .bt-compensation-flow {
      flex-direction: column;
  }

  .bt-flow-arrow {
      transform: rotate(90deg);
  }

  .bt-footer-grid {
      grid-template-columns: 1fr;
      gap: 32px;
  }
}

@media (max-width: 600px) {
  .bt-hero h1 {
      font-size: 2rem;
  }

  .bt-section h2 {
      font-size: 1.7rem;
  }

  .bt-verifiers {
      grid-template-columns: 1fr;
  }

  .bt-pricing-card {
      padding: 32px 24px;
  }

  .bt-pricing-number {
      font-size: 56px;
  }

  .bt-calculator {
      padding: 28px 20px;
  }

  .bt-calc-controls {
      gap: 20px;
  }

  .bt-calc-group label {
      font-size: 13px;
  }

  .bt-calc-value {
      font-size: 13px;
  }

  .bt-range {
      height: 4px;
  }

  .bt-range::-webkit-slider-thumb {
      width: 16px;
      height: 16px;
  }

  .bt-calc-result {
      padding: 16px;
  }

  .bt-calc-result-value {
      font-size: 18px;
  }

  /* Fix horizontal scroll on mobile */
  .bt-hero,
  .bt-section,
  .bt-pricing,
  .bt-features,
  .bt-calculator-section,
  .bt-verifiers-section,
  .bt-faq-section,
  .contenedor {
      overflow-x: hidden;
      max-width: 100vw;
  }

  /* Ensure all direct children don't overflow */
  .bt-hero > *,
  .bt-section > *,
  .bt-pricing > *,
  .bt-features > * {
      max-width: 100%;
      overflow-x: hidden;
  }
}

@media (max-width: 400px) {
  .bt-hero-stats {
      flex-direction: column;
      gap: 16px;
  }

  .bt-stat-divider {
      display: none;
  }

  .bt-hero-actions {
      flex-direction: column;
      align-items: center;
  }

  .bt-btn-primary,
  .bt-btn-secondary {
      width: 100%;
      text-align: center;
  }

  .bt-calculator {
      padding: 20px 16px;
  }

  .bt-calculator h3 {
      font-size: 18px;
  }

  .bt-calc-results {
      gap: 12px;
  }

  .bt-calc-result-label {
      font-size: 11px;
  }

  .bt-calc-result-value {
      font-size: 16px;
  }
}

/* --- CHECKOUT MODAL --- */
.bt-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.bt-modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 40px;
  max-width: 480px;
  width: 100%;
  position: relative;
}

.bt-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 28px;
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s;
}

.bt-modal-close:hover {
  color: var(--text-primary);
}

.bt-modal-content h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
  text-align: center;
}

.bt-modal-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 28px;
}

.bt-form-group {
  margin-bottom: 20px;
}

.bt-form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.bt-form-group input[type="email"] {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 16px;
  transition: border-color 0.2s;
}

.bt-form-group input[type="email"]:focus {
  outline: none;
  border-color: var(--accent-start);
}

.bt-checkout-summary {
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 20px;
}

.bt-summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: var(--text-secondary);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.bt-summary-total {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  padding-top: 12px;
}

.bt-terms {
  margin-bottom: 16px;
}

.bt-terms label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  cursor: pointer;
}

.bt-terms input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-start);
}

.bt-terms a {
  color: var(--accent-start);
  text-decoration: underline;
}

.bt-checkout-error {
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.2);
  border-radius: var(--radius-sm);
  padding: 12px;
  color: var(--red);
  font-size: 14px;
  margin-bottom: 16px;
}

.bt-modal-secure {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.bt-secure-icon {
  font-size: 14px;
}

@media (max-width: 480px) {
  .bt-modal-content {
    padding: 28px 20px;
  }

  .bt-modal-content h2 {
    font-size: 20px;
  }
}