:root {
  --lime: #b5ec06;
  --dark: #0f0f0f;
  --light: #e8e8e8;
  --gray: #555;
  --gray-light: #1a1a1a;
  --gray-mid: #2a2a2a;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--dark);
  color: var(--light);
  font-family: "Barlow", sans-serif;
  font-weight: 400;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ─── NOISE TEXTURE OVERLAY ─── */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}

/* ─── TYPOGRAPHY ─── */
.display {
  font-family: "Bebas Neue", sans-serif;
  letter-spacing: 0.04em;
}
.condensed {
  font-family: "Barlow Condensed", sans-serif;
}

h1,
h2,
h3 {
  color: var(--light);
}

/* ─── SECTIONS ─── */
section {
  position: relative;
  z-index: 1;
}

/* ─── HERO ─── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  padding: 6rem 7vw 5rem;
  border-bottom: 1px solid #222;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(181, 236, 6, 0.08) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(181, 236, 6, 0.1);
  border: 1px solid rgba(181, 236, 6, 0.3);
  color: var(--lime);
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 2px;
  margin-bottom: 1.8rem;
}

.hero-eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--lime);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.7);
  }
}

.hero-title {
  font-family: "Bebas Neue", sans-serif;
  font-size: clamp(3.5rem, 6vw, 6rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
}

.hero-title .accent {
  color: var(--lime);
}

.hero-subtitle {
  font-family: "Barlow Condensed", sans-serif;
  font-size: clamp(1rem, 1.5vw, 1.3rem);
  font-weight: 400;
  color: #999;
  margin-bottom: 2.5rem;
  max-width: 480px;
  line-height: 1.5;
  font-style: italic;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--lime);
  color: var(--dark);
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 18px 36px;
  text-decoration: none;
  border-radius: 2px;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
  box-shadow: 0 4px 30px rgba(181, 236, 6, 0.25);
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(181, 236, 6, 0.4);
}

.hero-cta svg {
  width: 18px;
  height: 18px;
}

/* ─── BOOK MOCKUP ─── */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.book-wrap {
  position: relative;
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-16px);
  }
}

.book {
  width: 300px;
  height: 420px;
  position: relative;
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateY(-15deg);
  transition: transform 0.4s ease;
}

.book:hover {
  transform: perspective(1000px) rotateY(-5deg);
}

.book-cover {
  width: 100%;
  height: 100%;
  background: var(--dark);
  border: 1px solid #333;
  border-radius: 4px 8px 8px 4px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 30px 28px;
  position: relative;
  overflow: hidden;
  box-shadow:
    -6px 0 20px rgba(0, 0, 0, 0.6),
    20px 20px 60px rgba(0, 0, 0, 0.5);
}

.book-cover::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--lime);
}

.book-cover::after {
  content: "";
  position: absolute;
  bottom: 60px;
  left: 28px;
  right: 28px;
  height: 1px;
  background: #2a2a2a;
}

.book-label {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--lime);
  font-weight: 700;
}

.book-main-title {
  font-family: "Bebas Neue", sans-serif;
  font-size: 2.8rem;
  line-height: 1;
  color: var(--light);
  letter-spacing: 0.03em;
}

.book-main-title span {
  display: block;
  font-size: 1.5rem;
  color: var(--lime);
  margin-top: 6px;
}

.book-desc {
  font-family: "Barlow", sans-serif;
  font-size: 0.7rem;
  color: #666;
  line-height: 1.5;
  font-style: italic;
}

.book-author {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: #555;
  text-transform: uppercase;
}

.book-spine {
  position: absolute;
  left: -28px;
  top: 0;
  width: 28px;
  height: 100%;
  background: #1a1a1a;
  border-radius: 4px 0 0 4px;
  border: 1px solid #2a2a2a;
  border-right: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.book-spine-text {
  font-family: "Bebas Neue", sans-serif;
  font-size: 0.85rem;
  color: #444;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.glow-ring {
  position: absolute;
  inset: -30px;
  background: radial-gradient(
    circle at 60% 40%,
    rgba(181, 236, 6, 0.06) 0%,
    transparent 60%
  );
  pointer-events: none;
}

/* ─── PROBLEM SECTION ─── */
.problem {
  padding: 8rem 7vw;
  background: var(--gray-light);
  border-top: 1px solid #1e1e1e;
  border-bottom: 1px solid #1e1e1e;
}

.section-tag {
  display: inline-block;
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--lime);
  margin-bottom: 1.2rem;
}

.section-title {
  font-family: "Bebas Neue", sans-serif;
  font-size: clamp(2.5rem, 4vw, 4rem);
  line-height: 1;
  margin-bottom: 2rem;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
  margin-top: 3rem;
}

.problem-text p {
  color: #aaa;
  font-size: 1.05rem;
  margin-bottom: 1.2rem;
}

.problem-text p strong {
  color: var(--light);
  font-weight: 600;
}

.problem-observations {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.obs-item {
  padding: 1.2rem 1.5rem;
  background: var(--dark);
  border-left: 3px solid transparent;
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: #777;
  transition: all 0.3s;
  letter-spacing: 0.02em;
}

.obs-item:hover {
  border-left-color: var(--lime);
  color: var(--light);
  background: #141414;
  padding-left: 2rem;
}

.obs-item:last-child {
  border-left-color: var(--lime);
  color: var(--lime);
}

/* ─── SOLUTION ─── */
.solution {
  padding: 8rem 7vw;
}

.solution-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.solution-text p {
  color: #aaa;
  margin-bottom: 1.2rem;
  font-size: 1.05rem;
}

.solution-text p strong {
  color: var(--lime);
}

.method-block {
  background: var(--gray-light);
  border: 1px solid #222;
  border-radius: 4px;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}

.method-block::before {
  content: "PBA";
  position: absolute;
  top: -20px;
  right: -10px;
  font-family: "Bebas Neue", sans-serif;
  font-size: 8rem;
  color: rgba(181, 236, 6, 0.04);
  line-height: 1;
  letter-spacing: 0.05em;
  pointer-events: none;
}

.method-title {
  font-family: "Bebas Neue", sans-serif;
  font-size: 1.6rem;
  color: var(--lime);
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.pillar {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  margin-bottom: 1.5rem;
}

.pillar:last-child {
  margin-bottom: 0;
}

.pillar-letter {
  font-family: "Bebas Neue", sans-serif;
  font-size: 2.5rem;
  line-height: 1;
  color: var(--lime);
  flex-shrink: 0;
  width: 35px;
}

.pillar-content h4 {
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--light);
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.pillar-content p {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.5;
}

/* ─── BENEFITS ─── */
.benefits {
  padding: 8rem 7vw;
  background: var(--gray-light);
  border-top: 1px solid #1e1e1e;
  border-bottom: 1px solid #1e1e1e;
}

.benefits-header {
  text-align: center;
  margin-bottom: 4rem;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: #1a1a1a;
  border: 1px solid #1a1a1a;
}

.benefit-card {
  background: var(--dark);
  padding: 2.5rem 2rem;
  transition: background 0.3s;
}

.benefit-card:hover {
  background: #111;
}

.benefit-num {
  font-family: "Bebas Neue", sans-serif;
  font-size: 3rem;
  color: rgba(181, 236, 6, 0.15);
  line-height: 1;
  margin-bottom: 0.8rem;
  display: block;
}

.benefit-title {
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--lime);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.benefit-text {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.6;
}

/* ─── TESTIMONIALS ─── */
.testimonials {
  padding: 8rem 7vw;
}

.testimonials-header {
  text-align: center;
  margin-bottom: 4rem;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonial {
  background: var(--gray-light);
  border: 1px solid #222;
  border-radius: 4px;
  padding: 2rem;
  position: relative;
}

.testimonial::before {
  content: '"';
  font-family: "Bebas Neue", sans-serif;
  font-size: 5rem;
  color: var(--lime);
  opacity: 0.3;
  position: absolute;
  top: -10px;
  left: 18px;
  line-height: 1;
}

.testimonial p {
  color: #aaa;
  font-size: 0.95rem;
  line-height: 1.7;
  font-style: italic;
  padding-top: 1.2rem;
}

.testimonial-author {
  margin-top: 1.2rem;
  padding-top: 1.2rem;
  border-top: 1px solid #2a2a2a;
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: #555;
  text-transform: uppercase;
}

/* ─── AUTHOR ─── */
.author {
  padding: 8rem 7vw;
  border-top: 1px solid #1e1e1e;
  border-bottom: 1px solid #1e1e1e;
}

.author-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  align-items: center;
}

.author-media {
  position: relative;
}

.author-media img {
  width: 100%;
  display: block;
  border-radius: 6px;
  border: 1px solid #222;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.author-badge {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(181, 236, 6, 0.95);
  color: var(--dark);
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 800;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 8px 12px;
  border-radius: 2px;
}

.author-content p {
  color: #aaa;
  margin-bottom: 1.2rem;
  font-size: 1.02rem;
}

.author-content p strong {
  color: var(--lime);
  font-weight: 600;
}

.author-highlights {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 1.8rem;
}

.highlight {
  background: var(--gray-light);
  border: 1px solid #222;
  border-radius: 4px;
  padding: 1.2rem;
}

.highlight-title {
  display: block;
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #777;
  margin-bottom: 0.5rem;
}

.highlight-value {
  display: block;
  font-family: "Bebas Neue", sans-serif;
  font-size: 2.2rem;
  color: var(--lime);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.highlight-note {
  display: block;
  color: #777;
  font-size: 0.85rem;
  line-height: 1.4;
}

.author-book {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  background: #111;
  border: 1px solid #222;
  border-radius: 4px;
  padding: 1rem;
}

.author-book img {
  width: 140px;
  border-radius: 4px;
  border: 1px solid #222;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}

.author-book-title {
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--light);
  margin-bottom: 0.4rem;
}

.author-book-caption {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #666;
}

/* ─── PRICE ─── */
.pricing {
  padding: 8rem 7vw;
  background: var(--gray-light);
  border-top: 1px solid #1e1e1e;
  border-bottom: 1px solid #1e1e1e;
}

.pricing-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.cost-items {
  list-style: none;
  margin: 1.5rem 0;
}

.cost-items li {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid #1e1e1e;
  color: #777;
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.1rem;
  letter-spacing: 0.03em;
}

.cost-items li::before {
  content: "→";
  color: #444;
  font-size: 0.9rem;
}

.price-box {
  background: var(--dark);
  border: 1px solid #2a2a2a;
  border-top: 3px solid var(--lime);
  border-radius: 4px;
  padding: 3rem;
  text-align: center;
}

.price-label {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: #555;
  margin-bottom: 1rem;
}

.price-value {
  font-family: "Bebas Neue", sans-serif;
  font-size: 5rem;
  color: var(--lime);
  line-height: 1;
  letter-spacing: 0.02em;
}

.price-currency {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.5rem;
  color: var(--lime);
  vertical-align: super;
}

.price-sub {
  font-size: 0.85rem;
  color: #555;
  margin: 1rem 0 2rem;
  font-style: italic;
}

.price-cta {
  display: block;
  background: var(--lime);
  color: var(--dark);
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 18px;
  text-decoration: none;
  border-radius: 2px;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
  box-shadow: 0 4px 30px rgba(181, 236, 6, 0.2);
  width: 100%;
  text-align: center;
  cursor: pointer;
  border: none;
}

.price-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(181, 236, 6, 0.35);
}

.guarantee {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 1.5rem;
  font-size: 0.8rem;
  color: #555;
  justify-content: center;
}

.guarantee svg {
  color: var(--lime);
  flex-shrink: 0;
}

/* ─── CTA SECTION ─── */
.cta-section {
  padding: 8rem 7vw;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 400px;
  background: radial-gradient(
    ellipse,
    rgba(181, 236, 6, 0.07) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.cta-big {
  font-family: "Bebas Neue", sans-serif;
  font-size: clamp(3rem, 6vw, 6rem);
  line-height: 1;
  margin-bottom: 1.5rem;
  position: relative;
}

.cta-sub {
  color: #666;
  max-width: 480px;
  margin: 0 auto 3rem;
  font-size: 1.05rem;
}

/* ─── FAQ ─── */
.faq {
  padding: 8rem 7vw;
  background: var(--gray-light);
  border-top: 1px solid #1e1e1e;
}

.faq-header {
  text-align: center;
  margin-bottom: 4rem;
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: #1a1a1a;
  border: 1px solid #1a1a1a;
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: var(--dark);
  padding: 0;
  overflow: hidden;
}

.faq-q {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 1.5rem 1.8rem;
  color: var(--light);
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.03em;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: color 0.2s;
}

.faq-q:hover {
  color: var(--lime);
}

.faq-q .arrow {
  color: var(--lime);
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: transform 0.3s;
  font-family: "Bebas Neue", sans-serif;
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition:
    max-height 0.4s ease,
    padding 0.3s;
  color: #666;
  font-size: 0.9rem;
  line-height: 1.7;
  padding: 0 1.8rem;
}

.faq-item.open .faq-a {
  max-height: 200px;
  padding: 0 1.8rem 1.5rem;
}

.faq-item.open .arrow {
  transform: rotate(45deg);
}

/* ─── FOOTER ─── */
footer {
  padding: 3rem 7vw;
  border-top: 1px solid #1a1a1a;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-brand {
  font-family: "Bebas Neue", sans-serif;
  font-size: 1.2rem;
  color: var(--lime);
  letter-spacing: 0.05em;
}

.footer-note {
  font-size: 0.8rem;
  color: #333;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
    padding: 4rem 5vw;
  }

  .hero-eyebrow {
    margin: 0 auto 1.8rem;
  }
  .hero-subtitle {
    margin: 0 auto 2.5rem;
  }
  .hero-cta {
    margin: 0 auto;
  }

  .problem-grid,
  .solution-inner,
  .pricing-inner,
  .author-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .benefits-grid {
    grid-template-columns: 1fr;
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .author-highlights {
    grid-template-columns: 1fr;
  }

  .author-book {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ─── SCROLL ANIMATIONS ─── */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── STICKY BOTTOM BAR ─── */
.sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 10, 0.97);
  border-top: 1px solid #222;
  padding: 1rem 7vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 100;
  transform: translateY(100%);
  transition: transform 0.4s ease;
  backdrop-filter: blur(20px);
}

.sticky-bar.visible {
  transform: translateY(0);
}

.sticky-bar-text {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1rem;
  color: #888;
}

.sticky-bar-text strong {
  color: var(--light);
  font-weight: 700;
}

.sticky-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--lime);
  color: var(--dark);
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 12px 24px;
  text-decoration: none;
  border-radius: 2px;
  white-space: nowrap;
}

@media (max-width: 600px) {
  .sticky-bar {
    flex-direction: column;
    gap: 0.8rem;
    text-align: center;
    padding: 1rem 4vw;
  }
}