/* ===== Landing Page Specific Styles ===== */

.landing-page {
  background: var(--color-bg-dark);
}

/* Landing Header - Minimal */
.landing-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-lg) 0;
  background: rgba(10, 22, 40, 0.9);
  backdrop-filter: blur(10px);
}

.landing-header .container {
  display: flex;
  justify-content: center;
}

/* Landing Hero */
.landing-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.landing-hero .hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(124, 58, 237, 0.2) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 60%, rgba(6, 182, 212, 0.2) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(249, 115, 22, 0.15) 0%, transparent 40%);
}

/* Circuit pattern */
.landing-hero .hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0v10M30 50v10M0 30h10M50 30h10M30 20v20M20 30h20' stroke='%2300d4ff' stroke-width='0.5' fill='none' opacity='0.1'/%3E%3C/svg%3E");
  opacity: 0.3;
}

.landing-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 560px;
}

.series-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-md);
}

.landing-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  color: var(--color-text-light);
  line-height: 1.2;
  margin-bottom: var(--space-lg);
}

.hero-lead {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

.hero-desc em {
  color: var(--color-cyan);
  font-style: normal;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.trust-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-cyan);
}

/* Hero Book */
.hero-book {
  position: relative;
  display: flex;
  justify-content: center;
}

.book-cover-main {
  max-width: 400px;
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(0, 212, 255, 0.2);
  transform: perspective(1000px) rotateY(-8deg);
  transition: transform var(--transition-slow);
}

.book-cover-main:hover {
  transform: perspective(1000px) rotateY(0deg) scale(1.02);
}

.book-badge {
  position: absolute;
  top: -15px;
  right: -15px;
  padding: 0.75rem 1.25rem;
  background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-teal) 100%);
  color: var(--color-bg-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
}

/* Problem/Solution Section */
.problem-section {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-light);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.problem-card,
.solution-card {
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
}

.problem-card {
  background: #fef2f2;
  border: 1px solid #fecaca;
}

.solution-card {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
}

.problem-card h3 {
  color: #dc2626;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
}

.solution-card h3 {
  color: #16a34a;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
}

.problem-card p,
.solution-card p {
  color: var(--color-text-body);
  margin-bottom: var(--space-lg);
}

.problem-card ul,
.solution-card ul {
  padding-left: var(--space-lg);
}

.problem-card li,
.solution-card li {
  margin-bottom: var(--space-sm);
  color: var(--color-text-body);
  font-size: 0.95rem;
}

.problem-card li {
  font-style: italic;
}

/* Guides Section */
.guides-section {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-dark);
  text-align: center;
}

.guides-section h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.section-lead {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin-bottom: var(--space-3xl);
}

.guides-row {
  display: flex;
  justify-content: center;
  gap: var(--space-3xl);
}

.guide-mini {
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-base);
}

.guide-mini.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.guide-mini img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  margin-bottom: var(--space-md);
  transition: transform var(--transition-base);
}

.guide-mini:hover img {
  transform: scale(1.1);
}

.guide-mini h4 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.guide-mini.pixel h4 { color: var(--color-pixel); }
.guide-mini.echo h4 { color: var(--color-echo); }
.guide-mini.algo h4 { color: var(--color-algo); }

.guide-mini p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Animation delays */
.guide-mini:nth-child(1) { transition-delay: 0ms; }
.guide-mini:nth-child(2) { transition-delay: 100ms; }
.guide-mini:nth-child(3) { transition-delay: 200ms; }

/* Preview Section */
.preview-section {
  padding: var(--space-4xl) 0;
  background: white;
}

.preview-section h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.features-list {
  max-width: 700px;
  margin: 0 auto;
}

.feature-row {
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
  padding: var(--space-xl) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  opacity: 0;
  transform: translateX(-20px);
  transition: all var(--transition-base);
}

.feature-row.animate-in {
  opacity: 1;
  transform: translateX(0);
}

.feature-row:last-child {
  border-bottom: none;
}

.feature-row .feature-icon {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  padding: var(--space-sm);
  background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-teal) 100%);
  border-radius: var(--radius-lg);
  color: white;
}

.feature-row .feature-icon svg {
  width: 100%;
  height: 100%;
}

.feature-text h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.feature-text p {
  color: var(--color-text-body);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Animation delays for features */
.feature-row:nth-child(1) { transition-delay: 0ms; }
.feature-row:nth-child(2) { transition-delay: 100ms; }
.feature-row:nth-child(3) { transition-delay: 200ms; }
.feature-row:nth-child(4) { transition-delay: 300ms; }

/* Series Section */
.series-section {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-light);
  text-align: center;
}

.section-tag {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-sm);
}

.series-section h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin-bottom: var(--space-md);
}

.series-timeline {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  margin-top: var(--space-3xl);
  flex-wrap: wrap;
}

.series-book {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 280px;
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-base);
}

.series-book.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.book-number {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-cyan);
  color: var(--color-bg-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.upcoming .book-number {
  background: var(--color-text-muted);
  color: white;
}

.book-cover-small {
  position: relative;
  margin-bottom: var(--space-lg);
}

.book-cover-small img {
  width: 180px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.coming-soon-cover {
  width: 180px;
  height: 270px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-dark) 100%);
  border-radius: var(--radius-md);
  border: 2px dashed var(--color-text-muted);
}

.coming-soon-cover span {
  color: var(--color-text-muted);
  font-weight: 600;
}

.availability {
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.availability.available {
  background: #16a34a;
  color: white;
}

.availability.coming {
  background: var(--color-cyan);
  color: var(--color-bg-dark);
}

.book-details h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.book-details .book-subtitle {
  color: var(--color-cyan);
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
}

.book-details p:not(.book-subtitle) {
  color: var(--color-text-body);
  font-size: 0.9rem;
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

/* Animation delays for books */
.series-book:nth-child(1) { transition-delay: 0ms; }
.series-book:nth-child(2) { transition-delay: 150ms; }
.series-book:nth-child(3) { transition-delay: 300ms; }

/* Testimonials Section */
.testimonials-section {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-dark);
  text-align: center;
}

.testimonials-section h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  color: var(--color-text-light);
  margin-bottom: var(--space-3xl);
}

.testimonials-row {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.testimonials-row blockquote {
  max-width: 320px;
  padding: var(--space-xl);
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  text-align: left;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-base);
}

.testimonials-row blockquote.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.testimonials-row blockquote p {
  color: var(--color-text-muted);
  font-style: italic;
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.testimonials-row blockquote cite {
  color: var(--color-cyan);
  font-style: normal;
  font-weight: 600;
  font-size: 0.9rem;
}

/* Animation delays for testimonials */
.testimonials-row blockquote:nth-child(1) { transition-delay: 0ms; }
.testimonials-row blockquote:nth-child(2) { transition-delay: 100ms; }
.testimonials-row blockquote:nth-child(3) { transition-delay: 200ms; }

/* CTA Section */
.cta-section {
  padding: var(--space-4xl) 0;
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-bg-darker) 100%);
  text-align: center;
}

.cta-content {
  max-width: 600px;
  margin: 0 auto;
}

.cta-content h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
}

.cta-content > p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin-bottom: var(--space-xl);
}

.cta-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.btn-amazon {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 1rem 2rem;
  background: #ff9900;
  color: #111;
  font-weight: 700;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.btn-amazon:hover {
  background: #ffad33;
  transform: translateY(-2px);
}

.btn-amazon svg {
  width: 20px;
  height: 20px;
}

.cta-formats {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Signup Section */
.signup-section {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-card);
  text-align: center;
}

.signup-content {
  max-width: 500px;
  margin: 0 auto;
}

.signup-content h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.signup-content > p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
}

.signup-form {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.signup-form input {
  flex: 1;
  padding: 1rem 1.25rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-light);
}

.signup-form input::placeholder {
  color: var(--color-text-muted);
}

.signup-form input:focus {
  outline: none;
  border-color: var(--color-cyan);
}

.signup-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Landing Footer */
.landing-footer {
  padding: var(--space-xl) 0;
  background: var(--color-bg-darker);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-nav {
  display: flex;
  gap: var(--space-xl);
}

.footer-nav a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--color-cyan);
}

.landing-footer .social-links {
  display: flex;
  gap: var(--space-md);
}

.landing-footer .social-links a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: all var(--transition-base);
}

.landing-footer .social-links a:hover {
  background: var(--color-cyan);
  color: var(--color-bg-dark);
}

.landing-footer .social-links svg {
  width: 18px;
  height: 18px;
}

.copyright {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .landing-hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-cta-group,
  .hero-trust {
    justify-content: center;
  }

  .book-cover-main {
    max-width: 300px;
    transform: none;
  }

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

  .series-timeline {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 768px) {
  .guides-row {
    flex-direction: column;
    gap: var(--space-xl);
  }

  .feature-row {
    flex-direction: column;
    text-align: center;
  }

  .feature-row .feature-icon {
    margin: 0 auto;
  }

  .testimonials-row {
    flex-direction: column;
    align-items: center;
  }

  .signup-form {
    flex-direction: column;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-nav {
    flex-wrap: wrap;
    justify-content: center;
  }
}