:root {
  --navy: #0b3f86;
  --navy-dark: #092b59;
  --coral: #ec7357;
  --ink: #15223a;
  --muted: #58657a;
  --line: #d9e0ea;
  --page-bg: #f4f6f7;
  --paper: #f5f2ee;
  --mission-surface: #fbfcfd;
  --white: #ffffff;
  --soft-blue: #eef5fb;
  --radius: 8px;
  font-family: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, var(--page-bg) 0%, #eef3f5 52%, var(--paper) 100%);
  font-size: 16px;
  line-height: 1.5;
  overflow-x: hidden;
}

a {
  color: inherit;
}

.site-header {
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 20px clamp(18px, 5vw, 44px) 12px;
}

.brand-lockup {
  min-width: 0;
  flex: 1 1 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(16px, 2.6vw, 30px);
}

.brand {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand img {
  display: block;
  width: clamp(148px, 22vw, 245px);
  height: auto;
}

.brand.compact img {
  width: clamp(92px, 15vw, 138px);
}

.site-title {
  color: var(--navy-dark);
  font-size: clamp(2.15rem, 4.05vw, 4.15rem);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
}

.brand.compact + .site-title {
  font-size: clamp(1.65rem, 3.15vw, 2.55rem);
}

.mission-band {
  max-width: 1080px;
  margin: 12px auto 0;
  padding: 0 clamp(18px, 5vw, 44px);
}

.mission-band h2 {
  margin: 0 0 12px;
  color: var(--navy-dark);
  font-size: clamp(1.45rem, 2.6vw, 2.15rem);
  font-style: normal;
  font-weight: 900;
  line-height: 1.1;
  text-align: center;
}

.mission-band p {
  margin: 0;
  border-top: 5px solid var(--coral);
  background: var(--mission-surface);
  box-shadow: 0 18px 55px rgba(9, 43, 89, 0.09);
  padding: clamp(20px, 4vw, 34px);
  color: var(--navy-dark);
  font-size: clamp(1rem, 1.7vw, 1.24rem);
  font-style: italic;
  font-weight: 700;
  line-height: 1.65;
  text-align: center;
}

.mission-band strong {
  font-weight: 900;
}

.home-intro {
  max-width: 980px;
  margin: clamp(34px, 6vw, 62px) auto clamp(26px, 4vw, 42px);
  padding: 0 clamp(18px, 5vw, 44px);
  text-align: center;
}

.home-intro h1 {
  margin: 0;
  color: var(--navy-dark);
  font-size: clamp(1.7rem, 4vw, 3.45rem);
  line-height: 1.12;
  letter-spacing: 0;
}

.home-intro h1 span {
  display: block;
}

.home-intro-highlight {
  color: var(--coral);
  font-weight: 900;
  text-decoration: none;
}

.section-cards {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(18px, 5vw, 44px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(16px, 3vw, 28px);
}

.image-card {
  min-height: clamp(225px, 32vw, 360px);
  display: flex;
  align-items: flex-end;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background-image:
    linear-gradient(180deg, rgba(7, 21, 42, 0.18), rgba(7, 21, 42, 0.76)),
    var(--card-image);
  background-size: cover;
  background-position: center;
  box-shadow: 0 22px 55px rgba(9, 43, 89, 0.22);
  color: var(--white);
  text-decoration: none;
}

.image-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: inherit;
  pointer-events: none;
}

.image-card span {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  padding: clamp(20px, 4vw, 34px);
  font-size: clamp(1.45rem, 3vw, 2.6rem);
  font-weight: 800;
  line-height: 1.05;
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.38);
}

.image-card:hover,
.image-card:focus-visible {
  transform: translateY(-3px);
  outline: 4px solid rgba(236, 115, 87, 0.34);
  outline-offset: 4px;
}

.image-card-wide {
  grid-column: 1 / -1;
  min-height: clamp(220px, 28vw, 320px);
}

.youtube-band {
  max-width: 1180px;
  margin: clamp(44px, 8vw, 82px) auto;
  padding: 0 clamp(18px, 5vw, 44px);
  text-align: center;
}

.youtube-button {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 2px solid var(--coral);
  background: var(--coral);
  color: #ffffff;
  padding: 14px 24px;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 15px 35px rgba(236, 115, 87, 0.24);
}

.youtube-button:hover,
.youtube-button:focus-visible {
  background: #d95f45;
  outline: 4px solid rgba(236, 115, 87, 0.28);
  outline-offset: 4px;
}

.collection-page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px clamp(18px, 5vw, 44px) 72px;
}

.collection-hero {
  margin: clamp(20px, 5vw, 50px) 0 clamp(22px, 4vw, 36px);
  border-left: 7px solid var(--coral);
  padding-left: clamp(18px, 3vw, 28px);
}

.back-home {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  margin: 0 0 16px;
  border: 1px solid rgba(11, 63, 134, 0.2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--navy-dark);
  padding: 9px 14px;
  font-size: 0.94rem;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(9, 43, 89, 0.08);
}

.back-home:hover,
.back-home:focus-visible {
  background: rgba(11, 63, 134, 0.08);
  outline: 3px solid rgba(236, 115, 87, 0.24);
  outline-offset: 3px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--coral);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.collection-hero h1 {
  margin: 0;
  color: var(--navy-dark);
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.05;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.video-card {
  min-height: 238px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
  box-shadow: 0 14px 34px rgba(9, 43, 89, 0.08);
}

.video-frame,
.video-placeholder {
  aspect-ratio: 16 / 9;
  width: 100%;
  border: 0;
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
}

.video-placeholder {
  display: grid;
  place-items: center;
  padding: 18px;
  color: #ffffff;
  text-align: center;
}

.video-placeholder span {
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 999px;
  padding: 8px 12px;
  color: #fff6f1;
  font-size: 0.9rem;
  font-weight: 800;
}

.video-card-body {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  padding: 15px;
}

.video-number {
  min-width: 2.2rem;
  height: 2.2rem;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: var(--soft-blue);
  color: var(--navy-dark);
  font-size: 0.9rem;
  font-weight: 800;
}

.video-title {
  margin: 0;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.35;
}

@media (max-width: 860px) {
  .site-header {
    align-items: center;
    flex-direction: column;
    gap: 12px;
    padding-top: 14px;
    text-align: center;
  }

  .brand-lockup {
    justify-content: center;
    gap: 12px;
    width: 100%;
  }

  .brand img {
    width: clamp(112px, 32vw, 138px);
  }

  .brand.compact img {
    width: clamp(82px, 24vw, 102px);
  }

  .site-title,
  .brand.compact + .site-title {
    font-size: clamp(1.38rem, 6.1vw, 1.82rem);
    white-space: normal;
  }

  .mission-band {
    margin-top: 8px;
  }

  .mission-band p {
    padding: 18px;
    font-size: 1rem;
    line-height: 1.5;
  }

  .home-intro {
    margin: 28px auto 24px;
  }

  .home-intro h1 {
    font-size: clamp(1.85rem, 8vw, 2.8rem);
    line-height: 1.15;
  }

  .section-cards,
  .video-grid {
    grid-template-columns: 1fr;
  }

  .image-card,
  .image-card-wide {
    min-height: 220px;
  }

  .collection-page {
    padding-bottom: 48px;
  }

  .collection-hero {
    margin: 22px 0 24px;
    border-left-width: 5px;
  }

  .video-card {
    min-height: auto;
  }
}

@media (max-width: 520px) {
  .site-header {
    padding-inline: 14px;
  }

  .brand-lockup {
    gap: 10px;
  }

  .site-title,
  .brand.compact + .site-title {
    font-size: clamp(1.2rem, 5.8vw, 1.5rem);
  }

  .mission-band p {
    line-height: 1.5;
  }

  .home-intro h1 {
    font-size: 1.72rem;
  }

  .collection-hero h1 {
    font-size: 1.85rem;
  }

  .image-card span {
    padding: 18px;
    font-size: 1.45rem;
    line-height: 1.12;
  }

  .youtube-button {
    width: 100%;
    max-width: 340px;
  }

  .video-card-body {
    padding: 13px;
  }

  .video-title {
    font-size: 0.98rem;
  }
}