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

:root {
  --bg-primary:    #0a0a0f;
  --bg-card:       #12121a;
  --bg-elevated:   #1a1a28;
  --border:        #2a2a40;
  --text-primary:  #f0f0f8;
  --text-secondary:#8888aa;
  --accent-orange: #f7931a;
  --accent-green:  #00d084;
  --accent-red:    #ff4466;
  --accent-purple: #8b5cf6;
  --glow-orange:   rgba(247,147,26,0.15);
  --glow-green:    rgba(0,208,132,0.15);
  --font-display:  'Space Grotesk', sans-serif;
  --font-body:     'Inter', sans-serif;
  --font-mono:     'Space Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
}

/* Layout */
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
.container-narrow { max-width: 780px; margin: 0 auto; padding: 0 1.5rem; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; color: var(--accent-orange); text-decoration: none; }
.nav-links { display: flex; gap: 1.5rem; list-style: none; }
.nav-links a { color: var(--text-secondary); text-decoration: none; font-size: 0.9rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--text-primary); }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
}
.card-elevated {
  background: var(--bg-elevated);
  border-radius: 12px;
  padding: 1.5rem;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  text-decoration: none;
}
.btn-primary { background: var(--accent-orange); color: #000; }
.btn-primary:hover { background: #e8851a; transform: translateY(-1px); }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text-primary); }
.btn-ghost:hover { border-color: var(--accent-orange); color: var(--accent-orange); }
.btn-lg { padding: 1.1rem 2.5rem; font-size: 1.1rem; }
.btn-full { width: 100%; }

/* Inputs */
.input-group { display: flex; flex-direction: column; gap: 0.5rem; }
.input-label { font-size: 0.85rem; color: var(--text-secondary); font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }
.input-field {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.875rem 1rem;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font-body);
  transition: border-color 0.2s;
  width: 100%;
}
.input-field:focus { outline: none; border-color: var(--accent-orange); }
.input-field::-webkit-calendar-picker-indicator { filter: invert(0.7); }

/* Result reveal */
.result-value {
  font-family: var(--font-mono);
  font-size: 4rem;
  font-weight: 700;
  color: var(--accent-green);
  line-height: 1;
}
.result-value.loss { color: var(--accent-red); }
.result-gain { font-family: var(--font-mono); font-size: 1.75rem; font-weight: 700; }
.result-gain.positive { color: var(--accent-green); }
.result-gain.negative { color: var(--accent-red); }

/* Glow effects */
.glow-green { box-shadow: 0 0 40px var(--glow-green); }
.glow-orange { box-shadow: 0 0 40px var(--glow-orange); }

/* Coin selector */
.coin-pills { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.coin-pill {
  padding: 0.5rem 1rem;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s;
}
.coin-pill:hover, .coin-pill.active {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  background: var(--glow-orange);
}

/* Famous dates grid */
.dates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}
.date-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  text-decoration: none;
  transition: all 0.2s;
  display: block;
}
.date-card:hover { border-color: var(--accent-orange); transform: translateY(-2px); }
.date-card-title { font-weight: 600; font-family: var(--font-display); color: var(--text-primary); margin-bottom: 0.25rem; }
.date-card-sub { font-size: 0.8rem; color: var(--text-secondary); }
.date-card-roi { font-family: var(--font-mono); color: var(--accent-green); font-size: 0.9rem; font-weight: 700; margin-top: 0.5rem; }

/* Price table */
.price-table { width: 100%; border-collapse: collapse; }
.price-table th, .price-table td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--border); }
.price-table th { color: var(--text-secondary); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 500; }
.price-table .positive { color: var(--accent-green); }
.price-table .negative { color: var(--accent-red); }

/* Hero */
.hero { padding: 5rem 0 3rem; text-align: center; }
.hero-tag { display: inline-block; padding: 0.3rem 1rem; border-radius: 100px; border: 1px solid var(--accent-orange); color: var(--accent-orange); font-size: 0.85rem; font-weight: 600; margin-bottom: 1.5rem; }
.hero-h1 { font-family: var(--font-display); font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 700; line-height: 1.1; margin-bottom: 1rem; }
.hero-h1 span { color: var(--accent-orange); }
.hero-sub { font-size: 1.1rem; color: var(--text-secondary); max-width: 560px; margin: 0 auto 2rem; }

/* Sections */
.section { padding: 4rem 0; }
.section-title { font-family: var(--font-display); font-size: 1.75rem; font-weight: 700; margin-bottom: 0.5rem; }
.section-sub { color: var(--text-secondary); margin-bottom: 2rem; }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--border); padding: 1.25rem 0; }
.faq-q { font-weight: 600; font-family: var(--font-display); cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-a { color: var(--text-secondary); margin-top: 0.75rem; display: none; line-height: 1.7; }
.faq-item.open .faq-a { display: block; }

/* Disclaimer */
.disclaimer {
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-top: 2rem;
}

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 2rem 0; color: var(--text-secondary); font-size: 0.85rem; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: var(--text-secondary); text-decoration: none; }
.footer-links a:hover { color: var(--text-primary); }

/* Share buttons */
.share-row { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 1.5rem; }
.share-btn {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity 0.2s;
}
.share-btn:hover { opacity: 0.85; }
.share-twitter { background: #1da1f2; color: #fff; }
.share-reddit { background: #ff4500; color: #fff; }
.share-copy { background: var(--bg-elevated); border: 1px solid var(--border); color: var(--text-primary); }

/* Blog */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem; }
.blog-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 1.75rem; text-decoration: none; transition: all 0.2s; display: block; }
.blog-card:hover { border-color: var(--accent-orange); transform: translateY(-2px); }
.blog-card-tag { font-size: 0.75rem; color: var(--accent-orange); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.75rem; }
.blog-card-title { font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; color: var(--text-primary); margin-bottom: 0.5rem; line-height: 1.3; }
.blog-card-desc { font-size: 0.9rem; color: var(--text-secondary); }

/* Article */
.article-body { line-height: 1.8; color: var(--text-secondary); }
.article-body h2 { font-family: var(--font-display); color: var(--text-primary); font-size: 1.4rem; margin: 2rem 0 1rem; }
.article-body h3 { font-family: var(--font-display); color: var(--text-primary); font-size: 1.1rem; margin: 1.5rem 0 0.75rem; }
.article-body p { margin-bottom: 1.25rem; }
.article-body strong { color: var(--text-primary); }
.article-body ul, .article-body ol { padding-left: 1.5rem; margin-bottom: 1.25rem; }
.article-body li { margin-bottom: 0.5rem; }
.article-body blockquote { border-left: 3px solid var(--accent-orange); padding-left: 1.25rem; margin: 1.5rem 0; font-style: italic; }

/* Animations */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.7; } }
.animate-in { animation: fadeInUp 0.4s ease forwards; }
.loading { animation: pulse 1.5s ease infinite; }

/* Responsive */
@media (max-width: 768px) {
  .hero { padding: 3rem 0 2rem; }
  .result-value { font-size: 2.5rem; }
  .dates-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .blog-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .dates-grid { grid-template-columns: 1fr; }
  .result-value { font-size: 2rem; }
}

#share-canvas { display: none; }