:root {
  --bg: #0a0a0f;
  --bg-subtle: #12121a;
  --bg-card: #16161f;
  --fg: #e8e8ed;
  --fg-muted: #8888a0;
  --accent: #00e87b;
  --accent-dim: #00e87b22;
  --accent-glow: #00e87b44;
  --red: #ff4d6a;
  --yellow: #ffd24d;
  --border: #1e1e2a;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ---- NAV ---- */
.nav {
  padding: 24px 48px;
  position: relative;
  z-index: 10;
}
.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  color: var(--fg);
  letter-spacing: -0.5px;
}

/* ---- HERO ---- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  background: radial-gradient(ellipse at 30% 20%, var(--accent-dim) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 80%, #1a0a3011 0%, transparent 50%),
              var(--bg);
}
.hero-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 48px;
  max-width: 720px;
}
.tag {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent);
  margin-bottom: 24px;
  text-transform: uppercase;
}
h1 {
  font-family: var(--font-display);
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--fg);
  margin-bottom: 28px;
}
.lede {
  font-size: 18px;
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 540px;
}

/* ---- TERMINAL ---- */
.hero-visual {
  padding: 0 48px 64px;
}
.terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  max-width: 680px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 14px;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
}
.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot.red { background: var(--red); }
.dot.yellow { background: var(--yellow); }
.dot.green { background: var(--accent); }
.terminal-title {
  color: var(--fg-muted);
  font-size: 12px;
  margin-left: 8px;
}
.terminal-body {
  padding: 20px;
}
.line {
  padding: 4px 0;
  color: var(--fg-muted);
}
.line.highlight {
  color: var(--accent);
}
.prompt {
  color: var(--accent);
  margin-right: 8px;
}
.cursor {
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  50% { opacity: 0; }
}

/* ---- PROBLEM ---- */
.problem {
  padding: 120px 48px;
  border-top: 1px solid var(--border);
}
.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  max-width: 1100px;
  margin: 0 auto;
  align-items: center;
}
.problem-text h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 20px;
}
.problem-text p {
  color: var(--fg-muted);
  font-size: 16px;
  line-height: 1.7;
}
.problem-stats {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 28px;
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.stat-card.accent {
  border-color: var(--accent);
  box-shadow: 0 0 30px var(--accent-glow);
}
.stat-number {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--fg);
  min-width: 100px;
}
.stat-card.accent .stat-number {
  color: var(--accent);
}
.stat-label {
  color: var(--fg-muted);
  font-size: 14px;
}

/* ---- HOW IT WORKS ---- */
.how {
  padding: 120px 48px;
  border-top: 1px solid var(--border);
}
.how-header {
  max-width: 600px;
  margin: 0 auto 64px;
  text-align: center;
}
.how-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.how-sub {
  color: var(--fg-muted);
  font-size: 17px;
}
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 32px;
  transition: border-color 0.3s;
}
.feature-card:hover {
  border-color: var(--accent);
}
.feature-icon {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.feature-card p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.65;
}

/* ---- NUMBERS ---- */
.numbers {
  padding: 120px 48px;
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
}
.numbers-content {
  max-width: 1000px;
  margin: 0 auto;
}
.big-number {
  text-align: center;
  margin-bottom: 64px;
}
.num {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 700;
  color: var(--accent);
  display: block;
  letter-spacing: -3px;
}
.big-number .label {
  color: var(--fg-muted);
  font-size: 18px;
  display: block;
  margin-top: 8px;
}
.comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.comp-col {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}
.comp-header {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.comp-header.old {
  color: var(--fg-muted);
}
.comp-header.new {
  color: var(--accent);
}
.comp-col ul {
  list-style: none;
}
.comp-col li {
  padding: 8px 0;
  color: var(--fg-muted);
  font-size: 15px;
  position: relative;
  padding-left: 20px;
}
.comp-col li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border);
}
.comp-col:last-child li::before {
  background: var(--accent);
}
.comp-col:last-child li {
  color: var(--fg);
}

/* ---- CLOSING ---- */
.closing {
  padding: 120px 48px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.closing-content {
  max-width: 680px;
  margin: 0 auto;
}
.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: 24px;
}
.closing-text {
  color: var(--fg-muted);
  font-size: 17px;
  line-height: 1.7;
}

/* ---- FOOTER ---- */
.site-footer {
  padding: 48px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 6px;
}
.footer-tagline {
  color: var(--fg-muted);
  font-size: 13px;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .hero-content { padding: 0 24px; }
  .hero-visual { padding: 0 24px 48px; }
  .problem { padding: 80px 24px; }
  .problem-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .how { padding: 80px 24px; }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .numbers { padding: 80px 24px; }
  .comparison {
    grid-template-columns: 1fr;
  }
  .closing { padding: 80px 24px; }
  .site-footer { padding: 32px 24px; }
  h1 { letter-spacing: -1px; }
  .stat-card { flex-direction: column; gap: 4px; }
  .stat-number { min-width: auto; }
  .demo-input-row { flex-direction: column; }
  .demo-input { border-radius: 10px; }
  .demo-btn { border-radius: 10px; width: 100%; }
  .demo-actions { flex-direction: column; gap: 12px; }
  .demo-cta-btn { text-align: center; }
  .waitlist-form { flex-direction: column; }
  .waitlist-submit { border-radius: 10px; }
}

/* ---- DEMO WIDGET ---- */
.demo-section {
  padding: 100px 48px;
  border-top: 1px solid var(--border);
  background: radial-gradient(ellipse at 60% 0%, var(--accent-dim) 0%, transparent 60%), var(--bg);
}
.demo-inner {
  max-width: 800px;
  margin: 0 auto;
}
.demo-header {
  text-align: center;
  margin-bottom: 48px;
}
.demo-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.1;
  margin-bottom: 16px;
}
.demo-sub {
  color: var(--fg-muted);
  font-size: 17px;
  line-height: 1.65;
  max-width: 580px;
  margin: 0 auto;
}
.demo-widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
}
.demo-input-row {
  display: flex;
  gap: 12px;
}
.demo-input {
  flex: 1;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 10px 0 0 10px;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 15px;
  padding: 14px 18px;
  outline: none;
  transition: border-color 0.2s;
}
.demo-input:focus {
  border-color: var(--accent);
}
.demo-input::placeholder {
  color: var(--fg-muted);
}
.demo-btn {
  background: var(--accent);
  border: none;
  border-radius: 0 10px 10px 0;
  color: #000;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 14px 24px;
  white-space: nowrap;
  transition: opacity 0.2s;
}
.demo-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.demo-btn:not(:disabled):hover {
  opacity: 0.88;
}
.demo-error {
  color: var(--red);
  font-size: 14px;
  margin-top: 12px;
}

/* Loading bar */
.demo-loading {
  margin-top: 28px;
  text-align: center;
}
.demo-loading-bar {
  height: 3px;
  background: var(--bg-subtle);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 14px;
}
.demo-loading-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 2px;
  animation: loadbar 9s ease-in-out forwards;
}
@keyframes loadbar {
  0%   { width: 0%; }
  40%  { width: 60%; }
  70%  { width: 80%; }
  90%  { width: 90%; }
  100% { width: 95%; }
}
.demo-loading-label {
  color: var(--fg-muted);
  font-size: 14px;
}

/* Email result card */
.demo-result {
  margin-top: 28px;
}
.email-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
  animation: fadeIn 0.4s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.email-card-header {
  margin-bottom: 20px;
}
.email-chip {
  background: var(--accent-dim);
  border: 1px solid var(--accent-glow);
  border-radius: 20px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  padding: 4px 12px;
  text-transform: uppercase;
}
.email-subject-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
}
.email-label {
  color: var(--fg-muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  min-width: 52px;
  text-transform: uppercase;
}
.email-subject {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--fg);
}
.email-divider {
  border-top: 1px solid var(--border);
  margin-bottom: 20px;
}
.email-body {
  color: var(--fg);
  font-size: 15px;
  line-height: 1.7;
}
.email-body p {
  margin-bottom: 10px;
}

.demo-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
}
.demo-regen-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg-muted);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 14px;
  padding: 10px 18px;
  transition: border-color 0.2s, color 0.2s;
}
.demo-regen-btn:hover {
  border-color: var(--fg-muted);
  color: var(--fg);
}
.demo-cta-btn {
  background: var(--accent);
  border-radius: 8px;
  color: #000;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  padding: 10px 22px;
  text-decoration: none;
  transition: opacity 0.2s;
}
.demo-cta-btn:hover {
  opacity: 0.88;
}

/* ---- WAITLIST ---- */
.waitlist {
  padding: 100px 48px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.waitlist-inner {
  max-width: 520px;
  margin: 0 auto;
}
.waitlist h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.waitlist-sub {
  color: var(--fg-muted);
  font-size: 16px;
  line-height: 1.65;
  margin-bottom: 32px;
}
.waitlist-form {
  display: flex;
  gap: 12px;
}
.waitlist-input {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px 0 0 10px;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 15px;
  outline: none;
  padding: 13px 18px;
  transition: border-color 0.2s;
}
.waitlist-input:focus {
  border-color: var(--accent);
}
.waitlist-input::placeholder {
  color: var(--fg-muted);
}
.waitlist-submit {
  background: var(--accent);
  border: none;
  border-radius: 0 10px 10px 0;
  color: #000;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  padding: 13px 24px;
  transition: opacity 0.2s;
  white-space: nowrap;
}
.waitlist-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.waitlist-submit:not(:disabled):hover {
  opacity: 0.88;
}
.waitlist-msg {
  color: var(--accent);
  font-size: 15px;
  margin-top: 16px;
}