@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* ============================================
   THE SNOWBALL — Compound Interest Visualized
   Dark theme · Scoped to .sb-wrapper
   ============================================ */

/* ── Hide CMS elements ── */

body:has(.sb-wrapper) .back-to-top,
body:has(.sb-wrapper) .c-matter__meta,
body:has(.sb-wrapper) .c-matter__title {
  display: none !important;
}

/* ── Variables ── */

:root {
  --sb-bg: #0a0e1a;
  --sb-bg-light: #111827;
  --sb-surface: #1e2536;
  --sb-text: #e2e8f0;
  --sb-text-muted: #94a3b8;
  --sb-text-dim: #64748b;
  --sb-gold: #f59e0b;
  --sb-gold-glow: rgba(245, 158, 11, 0.2);
  --sb-gold-dim: rgba(245, 158, 11, 0.5);
  --sb-green: #34d399;
  --sb-green-dim: rgba(52, 211, 153, 0.3);
  --sb-blue: #38bdf8;
  --sb-divider: rgba(148, 163, 184, 0.12);
  --sb-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --sb-font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;
}

/* ── Reset ── */

.sb-wrapper *,
.sb-wrapper *::before,
.sb-wrapper *::after {
  box-sizing: border-box;
}

/* ── Wrapper ── */

.sb-wrapper {
  position: relative;
  width: 100vw !important;
  left: 50% !important;
  right: 50% !important;
  margin-left: -50vw !important;
  margin-right: -50vw !important;
  max-width: none !important;
  overflow-x: hidden !important;
  overflow-y: visible !important;
  background: var(--sb-bg) !important;
  color: var(--sb-text) !important;
  font-family: var(--sb-font-sans) !important;
  line-height: 1.6 !important;
  -webkit-font-smoothing: antialiased;
}

.sb-wrapper h2 {
  text-align: left;
  margin: 0;
}

.sb-wrapper strong,
.sb-wrapper b {
  color: inherit !important;
}

/* ── Persistent Canvas ── */

.sb-wrapper #sb-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
}

.sb-wrapper #sb-canvas.sb-canvas--fixed {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
}

/* ── Progress Bar ── */

.sb-wrapper .sb-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 9999;
  background: rgba(255, 255, 255, 0.05);
}

.sb-wrapper .sb-progress-bar span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--sb-gold), #fbbf24);
  transition: width 0.1s linear;
}

/* ── Hero ── */

.sb-wrapper .sb-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  z-index: 2;
  padding: 40px 24px;
}

.sb-wrapper .sb-hero__content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.sb-wrapper .sb-hero__glow {
  width: 120px;
  height: 120px;
  margin: 0 auto 40px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--sb-gold) 0%, rgba(245, 158, 11, 0.3) 40%, transparent 70%);
  animation: sb-pulse 3s ease-in-out infinite;
}

@keyframes sb-pulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
}

.sb-wrapper .sb-hero__overline {
  font-size: 0.8rem !important;
  text-transform: uppercase !important;
  letter-spacing: 3px !important;
  color: var(--sb-gold) !important;
  margin-bottom: 16px !important;
}

.sb-wrapper .sb-hero__title {
  font-size: clamp(2.5rem, 6vw, 4.5rem) !important;
  font-weight: 800 !important;
  line-height: 1.1 !important;
  color: #ffffff !important;
  margin-bottom: 20px !important;
  text-align: center !important;
  letter-spacing: -0.02em;
}

.sb-wrapper .sb-hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem) !important;
  color: var(--sb-text-muted) !important;
  max-width: 500px !important;
  margin: 0 auto 48px !important;
  line-height: 1.6;
}

.sb-wrapper .sb-hero__scroll-cue {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--sb-text-dim);
  font-size: 0.82rem;
  letter-spacing: 1px;
}

.sb-wrapper .sb-hero__arrow {
  font-size: 1.2rem;
  animation: sb-bounce 2s ease-in-out infinite;
}

@keyframes sb-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ── Scenes ── */

.sb-wrapper .sb-scene {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  padding: 40px 24px;
}

.sb-wrapper .sb-scene__text {
  max-width: 560px;
  text-align: center;
  opacity: 0;
  transform: translateY(30px);
}

.sb-wrapper .sb-scene__text.sb-visible {
  opacity: 1;
  transform: translateY(0);
}

.sb-wrapper .sb-scene__label {
  font-family: var(--sb-font-mono) !important;
  font-size: 0.8rem !important;
  text-transform: uppercase !important;
  letter-spacing: 3px !important;
  color: var(--sb-gold) !important;
  margin-bottom: 8px !important;
}

.sb-wrapper .sb-scene__value {
  font-family: var(--sb-font-mono) !important;
  font-size: clamp(2rem, 5vw, 3.5rem) !important;
  font-weight: 700 !important;
  color: #ffffff !important;
  margin-bottom: 20px !important;
  font-variant-numeric: tabular-nums;
}

.sb-wrapper .sb-scene__value--accent {
  color: var(--sb-gold) !important;
}

.sb-wrapper .sb-scene__value--big {
  font-size: clamp(2.5rem, 7vw, 5rem) !important;
  background: linear-gradient(135deg, var(--sb-gold), #fbbf24, var(--sb-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sb-wrapper .sb-scene__narration {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem) !important;
  color: var(--sb-text) !important;
  line-height: 1.6 !important;
  margin-bottom: 12px !important;
}

.sb-wrapper .sb-scene__detail {
  font-size: 0.9rem !important;
  color: var(--sb-text-muted) !important;
  line-height: 1.6 !important;
}

/* ── Interactive ── */

.sb-wrapper .sb-interactive {
  position: relative;
  z-index: 3;
  background: var(--sb-bg-light) !important;
  padding: 80px 24px;
}

.sb-wrapper .sb-interactive__inner {
  max-width: 900px;
  margin: 0 auto;
}

.sb-wrapper .sb-interactive__title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem) !important;
  font-weight: 700 !important;
  color: #ffffff !important;
  margin-bottom: 8px !important;
  text-align: center !important;
}

.sb-wrapper .sb-interactive__subtitle {
  font-size: 1rem !important;
  color: var(--sb-text-muted) !important;
  text-align: center !important;
  margin-bottom: 40px !important;
}

.sb-wrapper .sb-interactive__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.sb-wrapper .sb-interactive__controls {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.sb-wrapper .sb-control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sb-wrapper .sb-control-group label {
  font-size: 0.85rem !important;
  color: var(--sb-text-muted) !important;
  font-weight: 500;
}

.sb-wrapper .sb-control-value {
  font-family: var(--sb-font-mono) !important;
  font-size: 1.6rem !important;
  font-weight: 700 !important;
  color: #ffffff !important;
}

.sb-wrapper .sb-control-group input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--sb-surface);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.sb-wrapper .sb-control-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  background: var(--sb-gold);
  border-radius: 50%;
  cursor: pointer;
  border: 3px solid var(--sb-bg);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.4);
}

.sb-wrapper .sb-control-group input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  background: var(--sb-gold);
  border-radius: 50%;
  cursor: pointer;
  border: 3px solid var(--sb-bg);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.4);
}

.sb-wrapper .sb-control-range {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--sb-text-dim);
}

/* Interactive results */

.sb-wrapper .sb-interactive__results {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sb-wrapper .sb-interactive__canvas-wrap {
  width: 100%;
  height: 200px;
  border-radius: 12px;
  overflow: hidden;
  background: var(--sb-bg);
  border: 1px solid var(--sb-divider);
}

.sb-wrapper .sb-interactive__canvas-wrap canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.sb-wrapper .sb-interactive__hero-stat {
  text-align: center;
  padding: 16px 0;
}

.sb-wrapper .sb-interactive__hero-label {
  font-size: 0.85rem !important;
  color: var(--sb-text-muted) !important;
  margin-bottom: 4px !important;
}

.sb-wrapper .sb-interactive__hero-value {
  font-family: var(--sb-font-mono) !important;
  font-size: clamp(2rem, 5vw, 3rem) !important;
  font-weight: 800 !important;
  color: var(--sb-gold) !important;
  margin: 0 !important;
}

/* ── Closing ── */

.sb-wrapper .sb-closing {
  position: relative;
  z-index: 3;
  background: var(--sb-bg) !important;
  padding: 100px 24px 60px;
  text-align: center;
}

.sb-wrapper .sb-closing__content {
  max-width: 640px;
  margin: 0 auto;
}

.sb-wrapper .sb-closing__content h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem) !important;
  font-weight: 700 !important;
  color: #ffffff !important;
  line-height: 1.3 !important;
  margin-bottom: 24px !important;
  text-align: center !important;
}

.sb-wrapper .sb-closing__disclaimer {
  font-size: 0.72rem !important;
  line-height: 1.6 !important;
  color: var(--sb-text-dim) !important;
  max-width: 600px !important;
  margin: 0 auto !important;
}

/* ── Back to Top ── */

.sb-wrapper .sb-back-to-top {
  position: fixed !important;
  bottom: 32px !important;
  right: 32px !important;
  width: 44px !important;
  height: 44px !important;
  border-radius: 50% !important;
  background: var(--sb-surface) !important;
  border: 1px solid var(--sb-divider) !important;
  color: var(--sb-text-muted) !important;
  cursor: pointer;
  display: flex !important;
  align-items: center;
  justify-content: center;
  z-index: 9999 !important;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background 0.2s ease;
  font-size: 1.2rem !important;
  line-height: 1 !important;
  padding: 0 !important;
}

.sb-wrapper .sb-back-to-top.visible {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateY(0) !important;
}

.sb-wrapper .sb-back-to-top:hover {
  background: var(--sb-gold) !important;
  color: var(--sb-bg) !important;
}

/* ── Responsive ── */

@media (max-width: 768px) {
  .sb-wrapper .sb-interactive__layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .sb-wrapper .sb-hero__glow {
    width: 80px;
    height: 80px;
    margin-bottom: 28px;
  }

  .sb-wrapper .sb-interactive {
    padding: 60px 20px;
  }

  .sb-wrapper .sb-closing {
    padding: 60px 20px 40px;
  }

  .sb-wrapper .sb-back-to-top {
    bottom: 16px !important;
    right: 16px !important;
  }
}

@media (max-width: 480px) {
  .sb-wrapper .sb-scene {
    padding: 40px 16px;
  }

  .sb-wrapper .sb-interactive__canvas-wrap {
    height: 150px;
  }
}

/* ── CMS Overrides ── */

.sb-wrapper .sb-scene p,
.sb-wrapper .sb-interactive p,
.sb-wrapper .sb-closing p {
  max-width: none !important;
}