body, html {
  font-family: 'Montserrat', Arial, sans-serif;
  background: #181818;
  color: #fff;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  width: 100vw;
  box-sizing: border-box;
}

.nav-bar {
  width: 100vw;
  background: rgba(24,24,24,0.98);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 2.5vw;
  box-shadow: 0 2px 12px rgba(0,0,0,0.10);
  position: sticky;
  top: 0;
  z-index: 100;
  box-sizing: border-box;
  overflow-x: hidden;
}

.site-title {
  font-size: 1.35rem;
  font-weight: 900;
  color: #eab308;
  letter-spacing: -1px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.18);
  text-decoration: none;
}
.site-title .white {
  color: #fff !important;
}

.site-nav {
  display: flex;
  gap: 2.2rem;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  font-size: 1.08rem;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  transition: background 0.18s, color 0.18s;
}

nav a.active, nav a:hover {
  color: #eab308;
  background: none;
}

.site-nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  font-size: 1.08rem;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  transition: background 0.18s, color 0.18s;
  display: inline-flex;
  align-items: center;
  height: 44px;
  line-height: 44px;
}
.site-nav .cta {
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 0;
  margin-bottom: 0;
}

.container {
  max-width: 90vw;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 2rem;
  width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
}

.hero-modern {
  display: flex;
  align-items: center;
  gap: 3.5rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
  justify-content: center;
  position: relative;
  min-height: 420px;
}

.hero-img-wrap {
  flex: 0 0 320px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.hero-img {
  width: 100%;
  max-width: 320px;
  height: auto;
  display: block;
  object-fit: contain;
}

.hero-content {
  flex: 1 1 380px;
  min-width: 260px;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 2;
}

.headline {
  font-size: 2.9rem;
  font-weight: 900;
  color: #eab308;
  margin-bottom: 0.7rem;
  letter-spacing: -1px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.18);
  line-height: 1.1;
}

.field-manual {
  font-size: 1.15rem;
  color: #b0b3b8;
  margin-bottom: 1.7rem;
  font-weight: 500;
}

.subheadline {
  font-size: 1.25rem;
  color: #fff;
  margin-bottom: 2.2rem;
  font-weight: 400;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 0.5rem;
}

.cta {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  border: none;
  border-radius: 32px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 8px rgba(234,179,8,0.10);
}

.cta.primary {
  background: #eab308;
  color: #181818;
}

.cta.primary:hover {
  background: #fffbe6;
  color: #181818;
}

.cta.secondary {
  background: transparent;
  color: #eab308;
  border: 2px solid #eab308;
}

.cta.secondary:hover {
  background: #eab308;
  color: #181818;
}

.cta-spaced {
  margin-top: 2.5rem !important;
}

.series-info {
  margin: 0 0 2.5rem 0;
  padding: 0 0 2.5rem 0;
  border-bottom: 1px solid rgba(234,179,8,0.10);
}

.series-info h2 {
  color: #eab308;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.7rem;
  letter-spacing: 0.5px;
  text-align: center;
}

.series-desc {
  color: #b0b3b8;
  font-size: 1.08rem;
  margin: 0 auto;
  line-height: 1.7;
  text-align: center;
}

.series-list {
  margin: 0 0 3.5rem 0;
  text-align: center;
  padding: 0 0 2.5rem 0;
  border-bottom: 1px solid rgba(234,179,8,0.10);
}

.series-list h2 {
  color: #eab308;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 2.2rem;
  letter-spacing: 0.5px;
}

.books {
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
  align-items: stretch;
  margin: 0 auto;
}

.book {
  text-align: center;
  padding: 0;
  border-left: 4px solid transparent;
  transition: border-color 0.2s;
}

.book-title {
  font-family: 'Sen', sans-serif;
  font-weight: 800;
  color: #eab308;
  font-size: 1.25rem;
  margin-bottom: 0.3rem;
  letter-spacing: 0.2px;
  text-shadow: 0 1px 0 #fff2, 0 2px 2px #0004;
}

.book-title span {
  color: #fff;
  font-weight: 400;
}

.book-desc {
  color: #b0b3b8;
  font-size: 1.05rem;
  line-height: 1.6;
}

.book.current {
  border-left: 4px solid #eab308;
  background: linear-gradient(90deg, rgba(234,179,8,0.04) 0%, transparent 100%);
  padding-left: 1.2rem;
}

.signup-section, .membership-section {
  margin: 0 0 3.5rem 0;
  padding: 0 0 2.5rem 0;
  border-bottom: 1px solid rgba(234,179,8,0.10);
}

.signup-section h2, .membership-section h2 {
  color: #eab308;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  letter-spacing: 0.5px;
  text-align: center;
}

.signup-form {
  display: flex;
  justify-content: center;
  gap: 0.7rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.signup-form input[type="email"] {
  padding: 0.9rem 1.2rem;
  font-size: 1.08rem;
  border: none;
  border-radius: 32px;
  outline: none;
  background: rgba(255,255,255,0.08);
  color: #fff;
  min-width: 220px;
  max-width: 320px;
  transition: background 0.2s;
}

.signup-form input[type="email"]::placeholder {
  color: #b0b3b8;
  opacity: 1;
}

.signup-form input[type="email"]:focus {
  background: rgba(234,179,8,0.10);
}

.signup-form button {
  padding: 0.9rem 2.2rem;
  font-size: 1.08rem;
  font-weight: 700;
  border: none;
  border-radius: 32px;
  background: #eab308;
  color: #181818;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.signup-form button:hover {
  background: #fffbe6;
  color: #181818;
}

.membership-desc {
  color: #b0b3b8;
  font-size: 1.08rem;
  margin: 0 auto 1.2rem auto;
  line-height: 1.7;
  text-align: center;
}

.authors {
  margin: 3.5rem auto 0 auto;
  text-align: center;
}

.authors-list {
  display: flex;
  justify-content: center;
  gap: 3.5rem;
  margin-top: 2.2rem;
  flex-wrap: wrap;
}

.author {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 300px;
  background: rgba(24,24,24,0.7);
  border-radius: 50px;
  padding: 1.2rem 1rem 1.5rem 1rem;
  transition: transform 0.18s;
}

.author:hover {
  transform: translateY(-6px) scale(1.04);
}

.author-img {
  width: 110px;
  height: 110px;
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: 0.8rem;
  background: #fff;
}

.author-name {
  font-weight: 700;
  color: #eab308;
  font-size: 1.1rem;
  margin-top: 0.2rem;
}

.author-bio {
  color: #b0b3b8;
  font-size: 1.02rem;
  margin-top: 0.5rem;
  line-height: 1.5;
}

footer {
  width: 100%;
  text-align: center;
  padding: 2.2rem 0 1.2rem 0;
  color: #b0b3b8;
  font-size: 1.02rem;
}

/* Hamburger styles */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 201;
}
.hamburger-bar {
  width: 28px;
  height: 3px;
  background: #eab308;
  margin: 4px 0;
  border-radius: 2px;
  transition: all 0.3s;
  display: block;
}

/* Hide nav and show hamburger on mobile */
@media (max-width: 800px) {
  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 95vw;
    max-width: 95vw;
    background: #181818;
    box-shadow: -2px 0 16px rgba(0,0,0,0.18);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 5rem 1.5rem 2rem 1.5rem;
    gap: 2rem;
    z-index: 200;
    transform: translateX(100%);
    transition: transform 0.3s;
    display: flex;
  }
  .site-nav.open {
    transform: translateX(0);
  }
  .mobile-hidden {
    display: none !important;
  }
  .hamburger {
    display: flex;
  }
  #mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.45);
    z-index: 150;
    transition: opacity 0.3s;
  }
}

/* Animate hamburger to X when open */
.hamburger.open .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open .hamburger-bar:nth-child(2) {
  opacity: 0;
}
.hamburger.open .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 1000px) {
  .hero-modern {
    flex-direction: column;
    gap: 2.2rem;
    min-height: 0;
  }
  .hero-content {
    align-items: center;
    text-align: center;
  }
  .hero-img-wrap {
    margin-bottom: 1.2rem;
  }
  .books {
    gap: 1.2rem;
  }
  .series-list {
    padding: 0 0 1.2rem 0;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 1.2rem 0.5rem 1.5rem 0.5rem;
    width: 95vw;
    max-width: 95vw;
  }
  .headline {
    font-size: 2rem;
  }
  .cta {
    width: 100%;
    padding: 1rem 2rem;
  }
  .cta-group {
    flex-direction: column;
    gap: 0.7rem;
  }
  .books {
    width: 95vw;
    max-width: 95vw;
  }
  .authors {
    width: 95vw;
    max-width: 95vw;
  }
  .authors-list {
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
    text-align: center;
  }
  .author {
    text-align: center;
    align-items: center;
  }
} 

/* Modal styles */
#signup-modal.modal {
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  overflow: auto;
  background: rgba(0,0,0,0.65);
  display: flex;
  align-items: center;
  justify-content: center;
}
#signup-modal .modal-content {
  background: #222;
  color: #fff;
  margin: auto;
  padding: 2rem 2.5rem 2rem 2.5rem;
  border-radius: 16px;
  box-shadow: 0 4px 32px rgba(0,0,0,0.25);
  min-width: 320px;
  max-width: 95vw;
  position: relative;
  text-align: center;
}
.close-modal {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 2rem;
  color: #eab308;
  cursor: pointer;
  font-weight: bold;
}
#signup-info-form input[type="text"],
#signup-info-form input[type="email"] {
  width: 90%;
  padding: 0.7rem;
  margin: 0.3rem 0 1rem 0;
  border-radius: 8px;
  border: none;
  background: #181818;
  color: #fff;
  font-size: 1rem;
}
#signup-info-form label {
  font-size: 1.05rem;
  color: #eab308;
  margin-bottom: 0.5rem;
  display: block;
  text-align: left;
}
#signup-info-form label input[type="checkbox"] {
  margin-right: 0.5rem;
} 
.white {
  color: #fff !important;
} 
.headline .white, .site-title .white, .book-title .white, .author-bio .white, .series-desc .white, .cta .white {
  color: #fff !important;
} 
.yellow {
  color: #eab308 !important;
} 
.checklist {
  list-style: none;
  padding-left: 0;
  margin: 0 auto 1.5rem auto;
  max-width: 600px;
  text-align: left;
  display: block;
}
.checklist li {
  position: relative;
  padding-left: 2.1em;
  margin-bottom: 0.7em;
  font-size: 1.08rem;
  text-align: left;
}
.checklist li::before {
  content: '✔️';
  position: absolute;
  left: 0;
  top: 0;
  font-size: 1.1em;
  line-height: 1.2;
  color: #39e639;
} 
.cta,
.cta:visited,
.cta:active,
.cta.primary,
.cta.secondary {
  text-decoration: none !important;
}