/* ============================
   DESIGN SYSTEM & TOKENS
   ============================ */
:root {
  --clr-bg: #0a0d16;
  --clr-surface: #111827;
  --clr-surface-2: #1a2235;
  --clr-border: rgba(255, 255, 255, 0.08);
  --clr-accent: #3b82f6;
  --clr-accent-glow: rgba(59, 130, 246, 0.25);
  --clr-gold: #f59e0b;
  --clr-gold-light: #fbbf24;
  --clr-green: #22c55e;
  --clr-red: #ef4444;
  --clr-text: #f1f5f9;
  --clr-text-muted: #94a3b8;
  --clr-text-dim: #64748b;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 4px 32px rgba(0, 0, 0, 0.4);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, sans-serif;
  --max-w: 1100px;
}

/* ============================
   RESET & BASE
   ============================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* ============================
   UTILITY
   ============================ */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section__label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.section__intro {
  font-size: 1.1rem;
  color: var(--clr-text-muted);
  max-width: 640px;
  margin-bottom: 48px;
}

/* ============================
   REVEAL ANIMATION
   ============================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================
   BUTTONS
   ============================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 700;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, #3b82f6, #6366f1);
  color: #fff;
  box-shadow: 0 0 24px rgba(99, 102, 241, 0.4), 0 4px 16px rgba(0, 0, 0, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 0 40px rgba(99, 102, 241, 0.6), 0 8px 24px rgba(0, 0, 0, 0.4);
}

.btn--primary:active {
  transform: translateY(0) scale(0.99);
}

.btn--large {
  padding: 18px 40px;
  font-size: 1.1rem;
  border-radius: var(--radius);
}

/* ============================
   BADGE
   ============================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--clr-gold-light);
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 7px 18px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.badge__flag {
  font-size: 1.2rem;
  line-height: 1;
}

/* ============================
   HIGHLIGHT
   ============================ */
.highlight {
  background: linear-gradient(135deg, #3b82f6, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================
   HERO
   ============================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(59, 130, 246, 0.12) 0%, transparent 70%),
    var(--clr-bg);
}

.hero__bg-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}

.shape--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #3b82f6, transparent);
  top: -200px;
  left: -200px;
  animation: float 8s ease-in-out infinite;
}

.shape--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #6366f1, transparent);
  top: 100px;
  right: -100px;
  animation: float 10s ease-in-out infinite reverse;
}

.shape--3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, #f59e0b, transparent);
  bottom: 0;
  left: 40%;
  opacity: 0.15;
  animation: float 12s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-30px);
  }
}

.hero__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__headline {
  font-size: clamp(2rem, 5.5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  max-width: 820px;
  margin-bottom: 24px;
}

.hero__sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--clr-text-muted);
  max-width: 560px;
  margin-bottom: 32px;
}

.hero__checks {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 40px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--clr-text-muted);
}

.hero__checks li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.check-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.15);
  color: var(--clr-green);
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

.hero__note {
  margin-top: 16px;
  font-size: 0.82rem;
  color: var(--clr-text-dim);
  letter-spacing: 0.02em;
}

/* ============================
   PROBLEM
   ============================ */
.problem {
  background: var(--clr-surface);
}

.problem__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.problem__card {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}

.problem__card:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.problem__icon {
  font-size: 2.8rem;
  margin-bottom: 12px;
  display: flex;
  justify-content: center;
}

.problem__card p {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
}

.problem__highlight {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.08), rgba(239, 68, 68, 0.04));
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-left: 4px solid var(--clr-red);
  border-radius: var(--radius-sm);
  padding: 24px 28px;
  font-size: 1.05rem;
  color: var(--clr-text-muted);
  max-width: 680px;
}

.problem__highlight strong {
  color: var(--clr-text);
}

/* ============================
   SOLUTION
   ============================ */
.solution {
  background: var(--clr-bg);
}

.solution__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.solution__list {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.solution__list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1rem;
  color: var(--clr-text-muted);
  padding: 12px 16px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.solution__list li:hover {
  border-color: rgba(59, 130, 246, 0.3);
  color: var(--clr-text);
}

/* E-book Mockup */
.ebook-mockup {
  perspective: 1000px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.ebook-mockup__img {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: 8px;
  box-shadow: 
    var(--shadow-card),
    0 0 60px rgba(59, 130, 246, 0.1),
    -12px 12px 30px rgba(0, 0, 0, 0.5);
  transform: rotateY(-12deg) rotateX(5deg);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.1);
  object-fit: cover;
}

.ebook-mockup:hover .ebook-mockup__img {
  transform: rotateY(0deg) rotateX(0deg) scale(1.04);
}

/* ============================
   SOLUTION TAGLINE
   ============================ */
.solution__tagline {
  margin-top: 20px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-accent);
}

/* ============================
   AUTHORITY
   ============================ */
.authority {
  background: var(--clr-surface);
}

.authority .section__label,
.authority .section__title {
  text-align: center;
}

.authority__box {
  max-width: 700px;
  margin: 40px auto 0;
  background: var(--clr-surface-2);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius);
  padding: 40px 48px;
  text-align: center;
}

.authority__intro {
  font-size: 1.05rem;
  color: var(--clr-text-muted);
  margin-bottom: 20px;
  line-height: 1.7;
}

.authority__intro strong {
  color: var(--clr-text);
}

.authority__channel {
  font-size: 0.95rem;
  color: var(--clr-text-muted);
  margin-bottom: 24px;
  line-height: 1.7;
}

.authority__channel strong {
  color: var(--clr-gold-light);
}

.authority__list {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.authority__list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--clr-text);
}

/* ============================
   LEARN
   ============================ */
.learn {
  background: var(--clr-surface);
}

.learn .section__title,
.learn .section__label {
  text-align: center;
}

.learn__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin: 48px 0 40px;
}

.learn__item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}

.learn__item:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.35);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.learn__num {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--clr-accent);
  opacity: 0.5;
  line-height: 1;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

.learn__item p {
  font-size: 0.95rem;
  color: var(--clr-text);
  line-height: 1.5;
}

.learn__item p strong {
  color: var(--clr-text);
  font-size: 1rem;
}

.learn__sub {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
  margin-top: 4px;
  font-style: italic;
}

.learn__footer {
  text-align: center;
  font-size: 1rem;
  color: var(--clr-text-muted);
  font-style: italic;
}

/* ============================
   FOR WHO
   ============================ */
.for-who {
  background: var(--clr-bg);
}

.for-who .section__title,
.for-who .section__label {
  text-align: center;
}

.for-who__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.for-who__col {
  border-radius: var(--radius);
  padding: 36px 32px;
  border: 1px solid;
}

.for-who__col h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.for-who__col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.for-who__col ul li {
  font-size: 0.95rem;
  color: var(--clr-text-muted);
  padding-left: 12px;
  line-height: 1.5;
}

.for-who__col--yes {
  background: rgba(34, 197, 94, 0.05);
  border-color: rgba(34, 197, 94, 0.2);
}

.for-who__col--yes h3 {
  color: var(--clr-green);
}

.for-who__col--no {
  background: rgba(239, 68, 68, 0.05);
  border-color: rgba(239, 68, 68, 0.15);
}

.for-who__col--no h3 {
  color: var(--clr-red);
}

/* ============================
   BENEFITS
   ============================ */
.benefits {
  background: var(--clr-surface);
  text-align: center;
}

.benefits__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin: 48px 0 48px;
}

.benefit__card {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 36px 24px;
  transition: var(--transition);
}

.benefit__card:hover {
  transform: translateY(-6px);
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.benefit__icon {
  font-size: 3.2rem;
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
}

.benefit__card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.benefit__card p {
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
}

.benefits__tagline {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--clr-text-muted);
  font-style: italic;
}

/* ============================
   OFFER
   ============================ */
.offer {
  background: var(--clr-bg);
}

.offer .section__label,
.offer .section__title {
  text-align: center;
}

.offer__box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  margin-top: 48px;
}

.offer__left {
  padding: 48px;
  border-right: 1px solid var(--clr-border);
}

.offer__left h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
}

.offer__items {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.offer__items li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1rem;
  color: var(--clr-text-muted);
}

.offer__right {
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.06), rgba(99, 102, 241, 0.06));
}

.offer__price-box {
  text-align: center;
  width: 100%;
  max-width: 320px;
}

.offer__label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
  margin-bottom: 8px;
}

.offer__price {
  font-size: 5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
  background: linear-gradient(135deg, #3b82f6, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.offer__details {
  font-size: 0.82rem;
  color: var(--clr-text-dim);
  margin-bottom: 28px;
}

.offer__right .btn {
  width: 100%;
}

.offer__guarantee {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 24px;
  text-align: left;
  background: rgba(34, 197, 94, 0.06);
  border: 1px solid rgba(34, 197, 94, 0.15);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.guarantee-icon {
  font-size: 2.2rem;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.offer__guarantee strong {
  font-size: 0.9rem;
  display: block;
  margin-bottom: 2px;
  color: var(--clr-green);
}

.offer__guarantee p {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
}

/* ============================
   OBJECTIONS
   ============================ */
.objections {
  background: var(--clr-surface);
}

.objections .section__label,
.objections .section__title {
  text-align: center;
}

.objections__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 48px;
}

.objection__card {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}

.objection__card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.objection__card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--clr-accent);
  margin-bottom: 12px;
  line-height: 1.4;
}

.objection__card p {
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
}

/* ============================
   CTA FINAL
   ============================ */
.cta-final {
  position: relative;
  background: var(--clr-bg);
  overflow: hidden;
  text-align: center;
}

.cta-final__bg-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.shape--4 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.2), transparent);
  top: -200px;
  left: -150px;
  border-radius: 50%;
  filter: blur(80px);
}

.shape--5 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15), transparent);
  bottom: -100px;
  right: -100px;
  border-radius: 50%;
  filter: blur(80px);
}

.cta-final__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cta-final__headline {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #f1f5f9, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-final__sub {
  font-size: 1.05rem;
  color: var(--clr-text-muted);
  max-width: 580px;
  margin-bottom: 40px;
}

/* ============================
   FOOTER
   ============================ */
.footer {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  padding: 32px 0;
}

.footer__inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer__disclaimer {
  font-size: 0.82rem;
  color: var(--clr-text-dim);
  max-width: 480px;
  margin: 0 auto;
}

.footer__copy {
  font-size: 0.78rem;
  color: var(--clr-text-dim);
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .solution__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .ebook-mockup__inner {
    transform: none;
  }

  .for-who__grid {
    grid-template-columns: 1fr;
  }

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

  .offer__left {
    border-right: none;
    border-bottom: 1px solid var(--clr-border);
    padding: 32px 24px;
  }

  .offer__right {
    padding: 32px 24px;
  }

  .hero__checks {
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .btn--large {
    padding: 16px 28px;
    font-size: 1rem;
    white-space: normal;
    text-align: center;
    width: 100%;
    max-width: 320px;
  }

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