:root {
  --color-bg: #2d1a10;
  --color-fg: #f0e8da;
  --color-muted: #b8a99a;
  --color-accent: #d49a3f;
  --color-accent-hover: #b87f2a;
  --color-accent-fg: #1a0f08;
  --color-border: #4a3526;
  --max-width: 1100px;
  --radius: 8px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  color: var(--color-fg);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 0.5em;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
}

p {
  margin: 0 0 1em;
  color: var(--color-muted);
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Banner */
.site-banner {
  width: 100%;
  margin: 0;
  padding: 0;
  background: var(--color-bg);
}

.site-banner a {
  display: block;
  line-height: 0;
}

.banner-image {
  display: block;
  width: 100%;
  height: auto;
}

/* Primary nav */
.nav-bar {
  display: flex;
  justify-content: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem 0;
}

.nav-toggle {
  display: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  line-height: 1;
  color: var(--color-accent);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.6rem 1rem;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  transition: background 0.15s ease, color 0.15s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: var(--color-accent);
  color: var(--color-accent-fg);
  text-decoration: none;
}

@media (max-width: 720px) {
  .nav-bar {
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem 1rem 0;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    align-self: flex-end;
    width: 48px;
    height: 48px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--color-accent);
    border-radius: var(--radius);
    color: var(--color-accent);
    cursor: pointer;
  }

  .nav-toggle:hover,
  .nav-toggle:focus-visible {
    background: var(--color-accent);
  }

  .nav-toggle:hover .nav-toggle-icon,
  .nav-toggle:hover .nav-toggle-icon::before,
  .nav-toggle:hover .nav-toggle-icon::after,
  .nav-toggle:focus-visible .nav-toggle-icon,
  .nav-toggle:focus-visible .nav-toggle-icon::before,
  .nav-toggle:focus-visible .nav-toggle-icon::after {
    background: var(--color-accent-fg);
  }

  .nav-toggle-icon,
  .nav-toggle-icon::before,
  .nav-toggle-icon::after {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
    transition: transform 0.2s ease, opacity 0.2s ease,
      top 0.2s ease, background 0.15s ease;
  }

  .nav-toggle-icon {
    position: relative;
  }

  .nav-toggle-icon::before,
  .nav-toggle-icon::after {
    content: "";
    position: absolute;
    left: 0;
  }

  .nav-toggle-icon::before {
    top: -7px;
  }

  .nav-toggle-icon::after {
    top: 7px;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-icon {
    background: transparent;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
    top: 0;
    transform: rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
    top: 0;
    transform: rotate(-45deg);
  }

  .site-nav {
    display: none;
    flex-direction: column;
    gap: 0.4rem;
    margin-top: 0.75rem;
  }

  .nav-toggle[aria-expanded="true"] + .site-nav {
    display: flex;
  }

  .site-nav a {
    width: 100%;
  }
}

/* Hero */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
  text-align: center;
}

.cover-image {
  display: block;
  width: 100%;
  max-width: 560px;
  height: auto;
  margin: 0 auto 2.5rem;
  border-radius: var(--radius);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

.preorder-banner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  max-width: 560px;
  margin: 0 auto 1.75rem;
  padding: 1rem 1.5rem;
  background: var(--color-accent);
  color: var(--color-accent-fg);
  border-radius: var(--radius);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.95rem;
  text-align: center;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  transition: background 0.15s ease, transform 0.15s ease;
}

.preorder-banner:hover {
  background: var(--color-accent-hover);
  text-decoration: none;
  transform: translateY(-1px);
}

.preorder-label {
  font-family: var(--font-serif);
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0;
  font-size: 1.25rem;
}

.preorder-date {
  font-family: var(--font-serif);
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.95rem;
  opacity: 0.85;
}

.preorder-cta {
  white-space: nowrap;
}

.cta-button {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-accent-fg);
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 500;
  transition: background 0.15s ease;
}

.cta-button:hover {
  background: var(--color-accent-hover);
  text-decoration: none;
}

/* About */
.about {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 5rem 1.5rem;
  border-top: 1px solid var(--color-border);
}

/* Contact */
.contact {
  max-width: 600px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
  text-align: center;
  border-top: 1px solid var(--color-border);
}

/* Subscribe */
.subscribe {
  max-width: 600px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.subscribe-form {
  display: flex;
  gap: 0.5rem;
  margin-top: 2rem;
}

.subscribe-form input[type="email"] {
  flex: 1;
  padding: 0.85rem 1rem;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  color: #1a0f08;
  font-family: inherit;
}

.subscribe-form input[type="email"]:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.subscribe-form button {
  padding: 0.85rem 1.5rem;
  font-size: 1rem;
  background: var(--color-accent);
  color: var(--color-accent-fg);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
  transition: background 0.15s ease;
}

.subscribe-form button:hover {
  background: var(--color-accent-hover);
}

/* KS logo (about section) */
.ks-logo {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
  margin: 0 auto;
}

/* Image slots (placeholders) */
.image-slot {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #ebebe2;
  border: 1px dashed #c4c4b5;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8a8a78;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 1.5rem;
  text-align: center;
}

.site-footer p {
  margin: 0;
  font-size: 0.9rem;
}

/* Utilities */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Responsive */
@media (max-width: 720px) {
  .hero {
    padding: 2.5rem 1.5rem 3rem;
  }

  .about {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding-top: 2rem;
    padding-bottom: 3rem;
  }

  .about-image {
    order: -1;
  }

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