:root {
  --bg-deep: #070b1a;
  --bg-surface: #0d1229;
  --bg-elevated: #141b3d;
  --fg-primary: #e8eaf6;
  --fg-secondary: #8a8fb5;
  --fg-muted: #5a5f82;
  --accent-cyan: #00d4ff;
  --accent-cyan-dim: rgba(0, 212, 255, 0.12);
  --accent-coral: #ff6b6b;
  --accent-coral-dim: rgba(255, 107, 107, 0.10);
  --accent-violet: #a78bfa;
  --accent-violet-dim: rgba(167, 139, 250, 0.10);
  --gradient-mesh: radial-gradient(ellipse at 20% 0%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
                   radial-gradient(ellipse at 80% 20%, rgba(167, 139, 250, 0.06) 0%, transparent 40%),
                   radial-gradient(ellipse at 50% 80%, rgba(255, 107, 107, 0.04) 0%, transparent 40%);
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --max-w: 1140px;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 10rem;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg-deep);
  color: var(--fg-primary);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--space-md); }

/* ==================== HERO ==================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: var(--space-xl) 0;
  background: var(--gradient-mesh), var(--bg-deep);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.hero__tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  border: 1px solid rgba(0, 212, 255, 0.2);
  margin-bottom: var(--space-md);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--fg-secondary);
  max-width: 480px;
  margin-bottom: var(--space-md);
}

.hero__stats {
  display: flex;
  gap: var(--space-md);
}

.hero__stat {
  display: flex;
  flex-direction: column;
}

.hero__stat-value {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.hero__stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Hero visual - animated thread unraveling */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
}

.thread-container {
  position: relative;
  width: 320px;
  height: 360px;
}

.thread-node {
  position: absolute;
  border-radius: 12px;
  padding: 1rem 1.25rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
  transition: transform 0.3s ease;
}

.thread-node:hover { transform: translateY(-4px) scale(1.02); }

.thread-node--tangled {
  background: var(--bg-elevated);
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--fg-muted);
  top: 10px; left: 0;
  transform: rotate(-3deg);
  width: 200px;
  opacity: 0.6;
}

.thread-node--tangled:nth-child(2) { top: 80px; left: 30px; transform: rotate(2deg); }
.thread-node--tangled:nth-child(3) { top: 150px; left: 10px; transform: rotate(-1deg); }

.thread-node--clear {
  background: linear-gradient(135deg, rgba(0,212,255,0.12), rgba(167,139,250,0.08));
  border: 1px solid rgba(0,212,255,0.25);
  color: var(--fg-primary);
}

.thread-node--clear:nth-child(4) { top: 30px; right: -30px; transform: rotate(1deg); }
.thread-node--clear:nth-child(5) { top: 130px; right: -10px; }
.thread-node--clear:nth-child(6) { top: 230px; right: -20px; transform: rotate(-1deg); }

.thread-arrow {
  position: absolute;
  top: 180px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--accent-cyan);
  font-size: 2rem;
  opacity: 0.4;
}

/* ==================== TRANSFORMATION ==================== */
.transformation {
  padding: var(--space-2xl) 0;
  position: relative;
}

.transformation::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,212,255,0.2), transparent);
}

.transformation__header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.transformation__header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xs);
}

.transformation__header p {
  color: var(--fg-secondary);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

.formats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.format-card {
  background: var(--bg-surface);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 16px;
  padding: var(--space-md);
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.format-card:hover {
  border-color: rgba(0,212,255,0.2);
  transform: translateY(-4px);
}

.format-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: var(--space-sm);
}

.format-card__icon--summary {
  background: var(--accent-cyan-dim);
  border: 1px solid rgba(0,212,255,0.2);
}

.format-card__icon--mindmap {
  background: var(--accent-violet-dim);
  border: 1px solid rgba(167,139,250,0.2);
}

.format-card__icon--podcast {
  background: var(--accent-coral-dim);
  border: 1px solid rgba(255,107,107,0.2);
}

.format-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.format-card p {
  color: var(--fg-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

.format-card__tag {
  display: inline-block;
  margin-top: var(--space-sm);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
}

.format-card__tag--cyan { color: var(--accent-cyan); background: var(--accent-cyan-dim); }
.format-card__tag--violet { color: var(--accent-violet); background: var(--accent-violet-dim); }
.format-card__tag--coral { color: var(--accent-coral); background: var(--accent-coral-dim); }

/* ==================== INTELLIGENCE ==================== */
.intelligence {
  padding: var(--space-2xl) 0 var(--space-xl);
}

.intelligence__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.intelligence__content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.intelligence__content p {
  color: var(--fg-secondary);
  font-size: 1rem;
  margin-bottom: var(--space-md);
  max-width: 480px;
}

.intelligence__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.intelligence__list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--fg-secondary);
}

.intelligence__list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  margin-top: 0.55rem;
  flex-shrink: 0;
}

.intelligence__demo {
  background: var(--bg-surface);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 16px;
  padding: var(--space-md);
  position: relative;
}

.demo-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.demo-dot { width: 8px; height: 8px; border-radius: 50%; }
.demo-dot--red { background: #ff5f57; }
.demo-dot--yellow { background: #febc2e; }
.demo-dot--green { background: #28c840; }

.demo-url {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--fg-muted);
  background: var(--bg-elevated);
  padding: 0.25rem 0.75rem;
  border-radius: 6px;
  margin-left: auto;
}

.demo-output {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.demo-line {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.demo-badge {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  white-space: nowrap;
}

.demo-badge--input { background: rgba(255,255,255,0.06); color: var(--fg-muted); }
.demo-badge--summary { background: var(--accent-cyan-dim); color: var(--accent-cyan); }
.demo-badge--map { background: var(--accent-violet-dim); color: var(--accent-violet); }
.demo-badge--audio { background: var(--accent-coral-dim); color: var(--accent-coral); }

.demo-text {
  font-size: 0.85rem;
  color: var(--fg-secondary);
}

/* ==================== SIGNALS ==================== */
.signals {
  padding: var(--space-xl) 0 var(--space-2xl);
}

.signals__header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.signals__header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xs);
}

.signals__header p {
  color: var(--fg-secondary);
  max-width: 520px;
  margin: 0 auto;
}

.signals__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.signal-card {
  background: var(--bg-surface);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 14px;
  padding: 1.5rem;
  display: flex;
  gap: 1rem;
  transition: border-color 0.3s ease;
}

.signal-card:hover { border-color: rgba(0,212,255,0.15); }

.signal-card__number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-cyan);
  opacity: 0.3;
  line-height: 1;
}

.signal-card h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.signal-card p {
  color: var(--fg-secondary);
  font-size: 0.88rem;
  line-height: 1.55;
}

/* ==================== PHILOSOPHY ==================== */
.philosophy {
  padding: var(--space-xl) 0;
  position: relative;
}

.philosophy::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(167,139,250,0.2), transparent);
}

.philosophy__inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-lg);
  align-items: start;
}

.philosophy__label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-violet);
  margin-bottom: var(--space-xs);
}

.philosophy__title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.philosophy__text {
  color: var(--fg-secondary);
  font-size: 1.05rem;
  line-height: 1.75;
}

.philosophy__text strong {
  color: var(--fg-primary);
  font-weight: 600;
}

/* ==================== CLOSING ==================== */
.closing {
  padding: var(--space-2xl) 0;
  text-align: center;
  position: relative;
  background: radial-gradient(ellipse at 50% 50%, rgba(0,212,255,0.06) 0%, transparent 60%);
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: var(--space-sm);
}

.closing p {
  color: var(--fg-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ==================== FOOTER ==================== */
.footer {
  padding: var(--space-md) 0;
  border-top: 1px solid rgba(255,255,255,0.04);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__brand {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--fg-muted);
}

.footer__note {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
  .hero__grid { grid-template-columns: 1fr; text-align: center; }
  .hero__subtitle { margin: 0 auto var(--space-md); }
  .hero__stats { justify-content: center; }
  .hero__visual { min-height: 300px; }
  .thread-container { width: 280px; height: 300px; transform: scale(0.85); }
  .formats-grid { grid-template-columns: 1fr; }
  .intelligence__grid { grid-template-columns: 1fr; }
  .signals__grid { grid-template-columns: 1fr; }
  .philosophy__inner { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; gap: var(--space-xs); text-align: center; }
  .hero { min-height: auto; padding: var(--space-lg) 0; }
  .hero__format-strip { flex-wrap: wrap; }
  .hero__cta-group { max-width: 100%; }
  .lead-form { flex-direction: column; }
  .lead-form__input { width: 100%; border-radius: 10px; }
  .lead-form__btn { width: 100%; justify-content: center; border-radius: 10px; }
  .hero__featured { font-size: 0.8rem; }
  .closing__social-proof { flex-wrap: wrap; justify-content: center; gap: 0.4rem; }
}

/* ==================== HERO REDESIGN — CONVERSION ==================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  padding-top: calc(var(--space-xl) + 1rem);
  padding-bottom: var(--space-xl);
}

.hero__content-wrap {
  max-width: 680px;
}

.hero__badges {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.hero__featured {
  font-size: 0.82rem;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}

.hero__featured strong {
  color: var(--fg-secondary);
  font-weight: 500;
}

.hero__headline {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-sm);
}

/* ==================== BOOKMARKLET INSTALL ==================== */

.hero__cta-group {
  margin: var(--space-md) 0;
  max-width: 560px;
}

.bookmarklet-install {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.bookmarklet-install__step {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.step-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(0, 212, 255, 0.15);
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: var(--accent-cyan);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-text {
  font-size: 0.88rem;
  color: var(--fg-secondary);
}

.bookmarklet-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1.2rem;
  background: linear-gradient(135deg, var(--accent-cyan), rgba(167, 139, 250, 0.9));
  color: #070b1a;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: 8px;
  text-decoration: none;
  cursor: grab;
  user-select: none;
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.25);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  border: 2px dashed rgba(0, 212, 255, 0.5);
}

.bookmarklet-btn:hover {
  box-shadow: 0 6px 24px rgba(0, 212, 255, 0.4);
  transform: translateY(-2px);
}

.bookmarklet-btn:active { cursor: grabbing; }

/* ==================== LEAD CAPTURE FORM ==================== */

.hero__lead-capture {
  margin-top: var(--space-md);
  max-width: 500px;
}

.hero__lead-label {
  font-size: 0.82rem;
  color: var(--fg-muted);
  margin-bottom: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.lead-form {
  display: flex;
  gap: 0.5rem;
}

.lead-form__input {
  flex: 1;
  background: var(--bg-elevated);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px 0 0 10px;
  padding: 0.7rem 1rem;
  color: var(--fg-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s ease;
}

.lead-form__input::placeholder { color: var(--fg-muted); }

.lead-form__input:focus {
  border-color: rgba(0, 212, 255, 0.4);
}

.lead-form__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.25rem;
  background: var(--accent-cyan);
  color: #070b1a;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  border: none;
  border-radius: 0 10px 10px 0;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.lead-form__btn:hover:not(:disabled) {
  background: #33deff;
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.lead-form__btn:disabled { opacity: 0.6; cursor: not-allowed; }

.lead-form--closing .lead-form__input { border-radius: 10px 0 0 10px; }
.lead-form--closing .lead-form__btn { border-radius: 0 10px 10px 0; }

.lead-success {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-cyan);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 0;
}

.lead-error {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-coral);
  font-size: 0.85rem;
  margin-top: 0.4rem;
}

/* ==================== FORMAT STRIP ==================== */

.hero__format-strip {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
  padding: 1.25rem var(--space-md);
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 16px;
  max-width: fit-content;
}

.format-strip-card {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.format-strip-card__icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.format-strip-card__icon--summary {
  background: var(--accent-cyan-dim);
  border: 1px solid rgba(0, 212, 255, 0.2);
  color: var(--accent-cyan);
}

.format-strip-card__icon--mindmap {
  background: var(--accent-violet-dim);
  border: 1px solid rgba(167, 139, 250, 0.2);
  color: var(--accent-violet);
}

.format-strip-card__icon--podcast {
  background: var(--accent-coral-dim);
  border: 1px solid rgba(255, 107, 107, 0.2);
  color: var(--accent-coral);
}

.format-strip-card__label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--fg-primary);
}

.format-strip-divider {
  color: var(--fg-muted);
  font-size: 1rem;
  font-weight: 700;
  padding: 0 0.25rem;
}

.format-strip-arrow {
  margin-left: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--fg-muted);
  border-left: 1px solid rgba(255, 255, 255, 0.06);
  padding-left: var(--space-sm);
  white-space: nowrap;
}

/* ==================== CLOSING SECTION UPDATES ==================== */

.closing__subtitle {
  color: var(--fg-secondary);
  font-size: 1rem;
  margin-top: 0.5rem;
  margin-bottom: var(--space-md);
}

.closing__form-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--space-md);
}

.closing__form-wrapper .lead-form {
  width: 100%;
  max-width: 480px;
}

.closing__purchase-wrapper {
  margin-top: var(--space-sm);
}

.purchase-btn {
  background: transparent;
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: var(--accent-cyan);
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.6rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.purchase-btn:hover {
  background: var(--accent-cyan-dim);
  border-color: rgba(0, 212, 255, 0.5);
}

/* ==================== SOCIAL PROOF ==================== */

.closing__social-proof {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: var(--space-lg);
  justify-content: center;
}

.social-proof__label {
  font-size: 0.78rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.social-proof__item {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--fg-secondary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 0.3rem 0.8rem;
  border-radius: 6px;
}

.social-proof__dot {
  color: var(--fg-muted);
  font-size: 0.7rem;
}