/* Shared navigation and the mission-led public homepage. */
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
.skip-link { position: fixed; top: 8px; left: 16px; z-index: 100; padding: 12px 18px; background: #79ffb0; color: #06100f; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.nav-links-desktop { gap: .35rem; }
.nav-links-desktop .nav-link { padding-inline: .6rem; font-size: .88rem; }
.mission-home { background: #06100f; }
.mission-shell { max-width: 1120px; padding-inline: 24px; margin-inline: auto; }
.mission-home h1, .mission-home h2, .mission-home h3 { letter-spacing: -.04em; }
.mission-home h2 { font-size: clamp(2rem, 3.4vw, 2.9rem); line-height: 1.13; margin: 0; }
.mission-home h3 { font-size: 1.4rem; line-height: 1.25; margin: 0; }
.mission-home p { color: #c6d8d3; line-height: 1.7; }
.create-hero { position: relative; min-height: 650px; display: flex; align-items: center; overflow: hidden; background: #06100f; }
.create-hero-art { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 52%; animation: image-arrive 1.2s ease both; }
.create-hero-inner { position: relative; width: 100%; max-width: 1120px; margin-inline: auto; padding: 80px 24px 100px; animation: copy-arrive .75s ease both; }
.mission-home .create-hero h1 { max-width: 620px; font-size: clamp(3rem, 5.2vw, 4.65rem); line-height: 1.05; margin: 0 0 24px; color: #f4faf7; }
.create-hero h1 span { color: #79ffb0; }
.create-hero p { max-width: 465px; font-size: 1.12rem; margin: 0 0 32px; }
.create-hero .cta-row { justify-content: flex-start; gap: 24px; }
.mission-home .text-link { text-decoration: none; border-bottom: 1px solid rgba(121,255,176,.4); padding-bottom: 4px; transition: border-color .2s ease, color .2s ease; }
.mission-home .text-link:hover { border-color: currentColor; color: #d8ffe8; }
.mission-opening { padding-block: 90px; display: grid; grid-template-columns: 1fr 1.1fr; gap: 80px; }
.mission-opening p:first-child, .learning-heading p:first-child { margin-top: 0; }
.mission-opening p:last-child, .learning-heading p:last-child { margin-bottom: 0; }
.learning-section { background: #0a1916; padding-block: 90px; }
.learning-heading { display: grid; grid-template-columns: 1fr 1.1fr; gap: 80px; align-items: start; }
.learning-heading > p { max-width: 440px; }
.learning-rows { list-style: none; padding: 0; margin: 56px 0 0; }
.learning-rows li { display: grid; grid-template-columns: 40px 1fr 1.1fr; gap: 32px; padding-block: 32px; border-top: 1px solid #2a4139; align-items: start; }
.learning-rows li > span, .learning-steps li > span { color: #79ffb0; font-size: .8rem; font-weight: 500; padding-top: 4px; }
.learning-rows h3 { max-width: 310px; }
.learning-rows p { margin: 0; }
.possibilities { border-top: 1px solid #2a4139; padding-top: 36px; margin-top: 8px; max-width: 100%; }
.possibilities p { max-width: 760px; }
.learning-together { padding-block: 100px 80px; }
.learning-steps { margin: 70px 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(4,1fr); gap: 32px; }
.learning-steps li { border-top: 1px solid #2a4139; padding-top: 20px; }
.learning-steps h3 { margin-top: 18px; font-size: 1.6rem; }
.learning-steps p { max-width: 210px; }
.project-notes { padding-block: 24px 80px; }
.game-note { display: grid; grid-template-columns: 320px 1fr; align-items: center; gap: 48px; border-top: 1px solid #2a4139; padding-block: 40px; }
.game-note img { display: block; width: 100%; height: auto; border: 1px solid #2a4139; }
.mission-home .game-note h2, .mission-home .defcon-note h2 { font-size: 1.65rem; }
.project-links { display: flex; flex-wrap: wrap; gap: 24px; }
.defcon-note { display: flex; justify-content: space-between; align-items: center; gap: 48px; border-block: 1px solid #2a4139; padding-block: 34px; }
.defcon-note p { margin-bottom: 0; max-width: 680px; }
.defcon-note > a { flex-shrink: 0; }
.mission-cta { padding-block: 62px; background: #79ffb0; color: #06100f; }
.mission-cta .mission-shell { display: flex; justify-content: space-between; align-items: center; gap: 48px; }
.mission-home .mission-cta h2, .mission-home .mission-cta p { color: #06100f; }
.mission-cta p { max-width: 600px; margin-bottom: 0; }
.mission-cta-actions { display: flex; align-items: center; gap: 28px; flex-shrink: 0; }
.mission-home .mission-cta .btn-primary { background: #06100f; border-color: #06100f; color: #f4faf7; }
.mission-home .mission-cta .text-link { color: #06100f; border-color: #397652; }
.mission-home footer { margin-top: 0; }
@keyframes copy-arrive { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes image-arrive { from { opacity: .5; } to { opacity: 1; } }
@media (max-width: 1050px) {
  .nav-links-desktop { gap: 0; }
  .nav-links-desktop .nav-link { padding-inline: .45rem; font-size: .8rem; }
  .nav-contact { padding-inline: .8rem; }
  .create-hero { min-height: 600px; }
  .create-hero-art { object-position: 58% center; }
  .create-hero p { max-width: 390px; }
  .mission-opening, .learning-heading { gap: 40px; }
  .mission-cta .mission-shell { align-items: flex-start; }
  .mission-cta-actions { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 950px) {
  .mission-shell { padding-inline: 24px; }
  .create-hero { display: flex; flex-direction: column; min-height: 0; }
  .create-hero-inner { order: 0; padding: 48px 24px 12px; }
  .create-hero-art { position: static; order: 1; height: 280px; width: 100%; object-position: 80% 62%; object-fit: cover; }
  .mission-home .create-hero h1 { font-size: clamp(2.6rem, 10vw, 4rem); }
  .create-hero p { max-width: 500px; font-size: 1rem; }
  .create-hero .cta-row { gap: 18px; }
  .create-hero .cta-row .btn-primary { width: auto; }
  .mission-opening, .learning-heading { grid-template-columns: 1fr; gap: 24px; }
  .mission-opening, .learning-section, .learning-together { padding-block: 56px; }
  .learning-rows { margin-top: 36px; }
  .learning-rows li { grid-template-columns: 28px 1fr; gap: 12px; padding-block: 24px; }
  .learning-rows li p { grid-column: 2; }
  .learning-rows h3 { max-width: 100%; }
  .learning-steps { grid-template-columns: repeat(2,1fr); gap: 24px; margin-top: 40px; }
  .learning-steps h3 { margin-top: 12px; }
  .game-note { grid-template-columns: 1fr; gap: 24px; padding-block: 28px; }
  .game-note > a { max-width: 420px; }
  .defcon-note { display: block; padding-block: 28px; }
  .defcon-note p { margin-bottom: 24px; }
  .project-notes { padding-block: 0 48px; }
  .mission-cta { padding-block: 48px; }
  .mission-cta .mission-shell { display: block; }
  .mission-cta-actions { flex-direction: row; align-items: center; margin-top: 28px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .create-hero-art, .create-hero-inner { animation: none; }
  .mission-home .text-link { transition: none; }
}

/* Use the compact menu before the full navigation becomes crowded. */
@media (min-width: 768px) and (max-width: 950px) {
  .home-page .navbar .nav-shell,
  .public-page .navbar .nav-shell {
    height: 64px;
    padding: 0 1rem;
    flex-wrap: nowrap;
    justify-content: space-between;
    gap: 0.75rem;
  }

  .site-logo {
    width: 36px;
    height: 36px;
    flex-basis: 36px;
  }

  .site-brand {
    gap: 0.55rem;
  }

  .site-brand-name {
    font-size: 0.68rem;
  }

  .site-nav {
    display: block;
    margin-left: auto;
  }

  .nav-links-desktop {
    display: none;
  }

  .nav-toggle {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border-soft);
    border-radius: 5px;
    color: var(--color-text);
    background: #0b1d1c;
    cursor: pointer;
    list-style: none;
  }

  .nav-toggle::-webkit-details-marker {
    display: none;
  }

  .nav-toggle:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 2px;
  }

  .nav-toggle-icon,
  .nav-toggle-icon::before,
  .nav-toggle-icon::after {
    width: 18px;
    height: 2px;
    display: block;
    border-radius: 2px;
    background: currentColor;
    transition: transform 180ms ease, background 180ms ease;
  }

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

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

  .nav-toggle-icon::before {
    top: -6px;
  }

  .nav-toggle-icon::after {
    top: 6px;
  }

  .site-nav[open] .nav-toggle-icon {
    background: transparent;
  }

  .site-nav[open] .nav-toggle-icon::before {
    transform: translateY(6px) rotate(45deg);
  }

  .site-nav[open] .nav-toggle-icon::after {
    transform: translateY(-6px) rotate(-45deg);
  }

  .site-nav:not([open]) > .nav-links {
    display: none;
  }

  .site-nav[open] > .nav-links {
    position: fixed;
    top: 64px;
    right: 0;
    left: 0;
    z-index: 49;
    width: auto;
    padding: 0.75rem 1rem 1rem;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
    border-bottom: 1px solid var(--color-border-soft);
    background: rgba(5, 15, 16, 0.98);
    box-shadow: 0 18px 32px rgba(0, 0, 0, 0.32);
    backdrop-filter: blur(18px);
  }

  .home-page .nav-link,
  .public-page .nav-link {
    min-height: 44px;
    padding: 0.65rem 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border-soft);
    background: #0b1d1c;
    font-size: 0.88rem;
    text-align: center;
  }

  .home-page .site-nav .nav-contact,
  .public-page .site-nav .nav-contact {
    grid-column: 1 / -1;
    width: 100%;
    min-height: 46px;
  }

}