:root {
  --bg: #030405;
  --bg-soft: #080a0d;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-strong: rgba(255, 255, 255, 0.075);
  --text: #f4f1ea;
  --muted: #a5a8ad;
  --dim: #6f747b;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #c8a45b;
  --accent-soft: rgba(200, 164, 91, 0.16);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  background:
    radial-gradient(circle at 72% 12%, rgba(200, 164, 91, 0.11), transparent 31rem),
    radial-gradient(circle at 12% 82%, rgba(102, 122, 143, 0.14), transparent 34rem),
    linear-gradient(180deg, var(--bg) 0%, #07090c 48%, #030405 100%);
  color: var(--text);
  letter-spacing: 0;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.88), transparent 86%);
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 50%;
  z-index: 20;
  width: min(var(--max), calc(100% - 40px));
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  transform: translateX(-50%);
}

.brand,
.site-nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  color: rgba(244, 241, 234, 0.9);
  font-size: 0.86rem;
  font-weight: 700;
  text-transform: uppercase;
}

.brand-mark {
  position: relative;
  width: 26px;
  height: 26px;
  border: 1px solid rgba(244, 241, 234, 0.42);
  transform: rotate(45deg);
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 7px;
  background: var(--accent);
  box-shadow: 0 0 22px rgba(200, 164, 91, 0.42);
}

.site-nav {
  gap: 28px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 600;
}

.site-nav a {
  transition: color 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.hero-section {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 120px 20px 96px;
}

.hero-map,
.hero-grid,
.eagle-silhouette {
  position: absolute;
  pointer-events: none;
}

.hero-map {
  inset: 8% -5% auto;
  height: 58vh;
  opacity: 0.16;
  filter: blur(1.5px);
  background-image: url("data:image/svg+xml,%3Csvg width='1200' height='560' viewBox='0 0 1200 560' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%23d8d1c2' stroke-width='2' opacity='0.8'%3E%3Cpath d='M109 222c40-52 93-72 159-59 42 8 83-25 126-15 44 10 77 74 132 62 54-12 89-90 151-73 51 14 69 79 122 89 80 16 131-99 210-71 49 17 60 75 103 91'/%3E%3Cpath d='M157 340c47-28 98-26 154 5 49 27 103 12 151-13 73-39 119-9 171 32 57 45 121 8 171-27 60-42 132-31 207 33'/%3E%3Cpath d='M232 126c-21 44-17 78 13 101 42 32 101 6 132 49 27 38 8 87 40 119 41 41 104 12 132 57'/%3E%3Cpath d='M794 101c-61 60-71 119-29 178 37 52 102 59 120 126'/%3E%3Cpath d='M522 103c-30 63-22 119 24 168 47 50 29 126 80 169'/%3E%3C/g%3E%3Cg fill='%23d8d1c2' opacity='0.24'%3E%3Cellipse cx='270' cy='218' rx='73' ry='35'/%3E%3Cellipse cx='493' cy='278' rx='88' ry='42'/%3E%3Cellipse cx='761' cy='216' rx='80' ry='36'/%3E%3Cellipse cx='922' cy='322' rx='95' ry='45'/%3E%3Cellipse cx='366' cy='374' rx='58' ry='29'/%3E%3C/g%3E%3C/svg%3E");
  background-position: center;
  background-repeat: no-repeat;
  background-size: min(1100px, 120vw) auto;
}

.hero-grid {
  inset: 0;
  opacity: 0.38;
  background:
    linear-gradient(120deg, transparent 0 42%, rgba(200, 164, 91, 0.1) 42.2%, transparent 42.8%),
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.12), transparent 1px);
  background-size: auto, 46px 46px;
  mask-image: radial-gradient(circle at 50% 48%, #000 0%, transparent 68%);
  animation: quietDrift 18s ease-in-out infinite alternate;
}

.eagle-silhouette {
  top: 13%;
  right: 6%;
  width: min(280px, 42vw);
  aspect-ratio: 1.8;
  opacity: 0.075;
  filter: blur(0.4px);
  background: #f4f1ea;
  clip-path: polygon(0 52%, 24% 20%, 45% 45%, 50% 12%, 55% 45%, 76% 20%, 100% 52%, 66% 44%, 57% 67%, 50% 84%, 43% 67%, 34% 44%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(980px, 100%);
  text-align: center;
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(4rem, 12vw, 10.8rem);
  line-height: 0.86;
  font-weight: 800;
}

.hero-subtitle {
  max-width: 680px;
  margin: 0 auto;
  color: rgba(244, 241, 234, 0.78);
  font-size: clamp(1.25rem, 3vw, 2.2rem);
  line-height: 1.25;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 44px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 24px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 700;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  border-color: rgba(200, 164, 91, 0.55);
  background: var(--accent);
  color: #080807;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.035);
  color: var(--text);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: rgba(255, 255, 255, 0.28);
}

.content-section,
.book-section {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 136px 0;
}

.content-section {
  max-width: 980px;
}

h2 {
  max-width: 880px;
  margin-bottom: 28px;
  font-size: clamp(2.25rem, 5.6vw, 5.9rem);
  line-height: 0.96;
  font-weight: 800;
}

.content-section > p,
.section-copy p,
.book-copy p {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(1.06rem, 1.5vw, 1.35rem);
  line-height: 1.75;
}

.concept-section {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 80px;
  align-items: end;
  max-width: var(--max);
}

.principle-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.principle-list li {
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: rgba(244, 241, 234, 0.88);
  font-size: 1rem;
  font-weight: 700;
}

.principle-list li::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 14px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 16px rgba(200, 164, 91, 0.36);
}

.book-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1fr);
  gap: 76px;
  align-items: center;
}

.book-visual {
  position: relative;
  min-height: 440px;
  display: grid;
  place-items: center;
}

.book-visual::before {
  content: "";
  position: absolute;
  inset: 16% 8%;
  background: radial-gradient(circle, rgba(200, 164, 91, 0.18), transparent 68%);
  filter: blur(12px);
}

.book-cover {
  position: relative;
  width: min(330px, 78vw);
  aspect-ratio: 0.68;
  display: flex;
  align-items: flex-end;
  padding: 34px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  overflow: hidden;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.09), transparent 38%),
    linear-gradient(180deg, #17191d, #050607);
  box-shadow: 0 42px 90px rgba(0, 0, 0, 0.46);
  transform: perspective(900px) rotateY(-8deg) rotateX(2deg);
}

.book-cover::before {
  content: "";
  position: absolute;
  inset: 26px;
  border: 1px solid rgba(200, 164, 91, 0.34);
}

.book-cover::after {
  content: "Adlercode";
  position: absolute;
  top: 34px;
  left: 34px;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
}

.book-cover span {
  position: relative;
  max-width: 8ch;
  color: var(--text);
  font-size: 3.4rem;
  line-height: 0.93;
  font-weight: 800;
}

.book-cover-art {
  align-items: stretch;
  padding: 0;
  background: #050607;
}

.book-cover-art::before,
.book-cover-art::after {
  content: none;
}

.book-cover-art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

.book-copy .button {
  margin-top: 18px;
}

.system-map {
  margin-top: 64px;
}

.map-root {
  width: fit-content;
  margin-bottom: 18px;
  padding: 12px 16px;
  border: 1px solid rgba(200, 164, 91, 0.38);
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--text);
  font-weight: 800;
}

.map-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.map-grid article {
  min-height: 190px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--surface-strong), rgba(255, 255, 255, 0.025));
}

.map-grid span {
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
}

.map-grid h3 {
  margin: 34px 0 14px;
  font-size: 1.4rem;
}

.map-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 760ms ease,
    transform 760ms ease;
}

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

@keyframes quietDrift {
  from {
    transform: translate3d(-10px, -6px, 0);
  }

  to {
    transform: translate3d(10px, 8px, 0);
  }
}

@media (max-width: 860px) {
  .site-header {
    width: calc(100% - 28px);
  }

  .site-nav {
    display: none;
  }

  .hero-section {
    min-height: 94vh;
    padding-inline: 16px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    width: min(360px, 100%);
    margin-inline: auto;
  }

  .button {
    width: 100%;
  }

  .content-section,
  .book-section {
    width: calc(100% - 32px);
    padding: 92px 0;
  }

  .concept-section,
  .book-section {
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .book-section {
    padding-top: 72px;
  }

  .book-visual {
    min-height: 360px;
    order: -1;
  }

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

@media (max-width: 520px) {
  h1 {
    font-size: clamp(3.25rem, 18vw, 5.5rem);
  }

  h2 {
    font-size: clamp(2.05rem, 12vw, 3.7rem);
  }

  .hero-subtitle {
    font-size: 1.18rem;
  }

  .eagle-silhouette {
    top: 15%;
    right: -10%;
    width: 260px;
  }

  .book-cover span {
    font-size: 2.9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}


.book-benefits {
  display: grid;
  gap: 10px;
  margin: 24px 0 18px;
  padding: 0;
  list-style: none;
  color: rgba(244, 241, 234, 0.86);
  font-weight: 700;
}

.book-benefits li::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 14px rgba(200, 164, 91, 0.32);
}

.book-format {
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 0.96rem;
  font-weight: 800;
}