:root {
  --bg: #0a0a0c;
  --bg-elevated: #131318;
  --fg: #e8e6e1;
  --fg-muted: #8a877f;
  --accent: #c8ff3e;
  --accent-dim: rgba(200, 255, 62, 0.12);
  --negative: #ff6b6b;
  --positive: #c8ff3e;
  --border: rgba(255,255,255,0.06);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-w: 1100px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---- HERO ---- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 clamp(24px, 5vw, 80px);
  position: relative;
  background:
    radial-gradient(ellipse 60% 50% at 20% 50%, rgba(200,255,62,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 80% 30%, rgba(200,255,62,0.03) 0%, transparent 60%),
    var(--bg);
}

.hero-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.hero-label {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(48px, 8vw, 96px);
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
}

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

.hero-sub {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.65;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: pulse-line 2s ease-in-out infinite;
}

@keyframes pulse-line {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ---- SECTION TAG ---- */
.section-tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
}

/* ---- MANIFESTO ---- */
.manifesto {
  padding: clamp(80px, 12vw, 160px) clamp(24px, 5vw, 80px);
  border-top: 1px solid var(--border);
}

.manifesto-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.manifesto h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 4.5vw, 52px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.manifesto p {
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--fg-muted);
  max-width: 640px;
  line-height: 1.7;
}

/* ---- FEATURES ---- */
.features {
  padding: clamp(80px, 12vw, 160px) clamp(24px, 5vw, 80px);
  border-top: 1px solid var(--border);
  max-width: calc(var(--max-w) + 160px);
  margin: 0 auto;
}

.features > h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.5vw, 40px);
  margin-bottom: 56px;
  letter-spacing: -0.02em;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.feature-card {
  background: var(--bg-elevated);
  padding: clamp(32px, 4vw, 48px);
  border: 1px solid var(--border);
  transition: border-color 0.3s ease;
}

.feature-card:hover {
  border-color: rgba(200,255,62,0.2);
}

.feature-number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 22px);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

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

/* ---- COMPARISON ---- */
.comparison {
  padding: clamp(80px, 12vw, 160px) clamp(24px, 5vw, 80px);
  border-top: 1px solid var(--border);
  max-width: calc(var(--max-w) + 160px);
  margin: 0 auto;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  margin-top: 40px;
}

.comparison-col {
  padding: clamp(32px, 4vw, 48px);
  border: 1px solid var(--border);
}

.comparison-col.old {
  background: var(--bg);
}

.comparison-col.new {
  background: var(--bg-elevated);
  border-color: rgba(200,255,62,0.15);
}

.comparison-col h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 24px);
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.comparison-col.old h3 { color: var(--fg-muted); }
.comparison-col.new h3 { color: var(--accent); }

.comparison-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.comparison-col li {
  font-size: 15px;
  line-height: 1.5;
  padding-left: 24px;
  position: relative;
}

.comparison-col.old li { color: var(--fg-muted); }
.comparison-col.new li { color: var(--fg); }

.comparison-col.old li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--negative);
  opacity: 0.5;
}

.comparison-col.new li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* ---- CLOSING ---- */
.closing {
  padding: clamp(100px, 15vw, 200px) clamp(24px, 5vw, 80px);
  text-align: center;
  background:
    radial-gradient(ellipse 50% 40% at 50% 60%, rgba(200,255,62,0.05) 0%, transparent 70%),
    var(--bg);
  border-top: 1px solid var(--border);
}

.closing-inner {
  max-width: 720px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4vw, 48px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.closing-sub {
  font-size: clamp(15px, 1.5vw, 18px);
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}

/* ---- FOOTER ---- */
.site-footer {
  padding: 40px clamp(24px, 5vw, 80px);
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links span {
  font-size: 14px;
  color: var(--fg-muted);
}

.footer-nav-link {
  font-size: 14px;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-nav-link:hover {
  color: var(--accent);
}

/* ---- WAITLIST FORM ---- */
.waitlist-wrap {
  margin-top: 40px;
  max-width: 480px;
}

.waitlist-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.waitlist-input-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.waitlist-input {
  flex: 1;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 6px;
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--fg);
  outline: none;
  transition: border-color 0.2s ease, background 0.2s ease;
  min-width: 0;
}

.waitlist-input::placeholder {
  color: var(--fg-muted);
}

.waitlist-input:focus {
  border-color: rgba(200,255,62,0.4);
  background: rgba(255,255,255,0.06);
}

.waitlist-btn {
  background: var(--accent);
  color: #0a0a0c;
  border: none;
  border-radius: 6px;
  padding: 14px 24px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s ease, transform 0.1s ease, opacity 0.2s ease;
  flex-shrink: 0;
}

.waitlist-btn:hover:not(:disabled) {
  background: #d6ff5a;
  transform: translateY(-1px);
}

.waitlist-btn:active:not(:disabled) {
  transform: translateY(0);
}

.waitlist-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.waitlist-error {
  font-size: 13px;
  color: var(--negative);
  padding-left: 2px;
}

.waitlist-success {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: rgba(200,255,62,0.08);
  border: 1px solid rgba(200,255,62,0.2);
  border-radius: 6px;
  font-size: 15px;
  color: var(--fg);
  line-height: 1.5;
}

.success-mark {
  color: var(--accent);
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .comparison-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .waitlist-input-row {
    flex-direction: column;
  }

  .waitlist-btn {
    padding: 16px 24px;
  }
}