/* RESET: This page also clears default element spacing. */
* {
  margin: 0;
  padding: 0;
}

:root {
  --navy-deep: #0f2f56;
  --muted: #6d7f95;
}

body {
  background: #edf1f5;
  min-height: 100vh;
  min-height: 100dvh;
  color: var(--navy-deep);
}

button {
  font: inherit;
}

.page {
  overflow: hidden;
}

/* HEADER */

.header {
  height: 82px;
  padding: 0 28px;
  background: white;
  border-bottom: 1px solid #eef2f6;
}

.museum-name {
  font-size: 24px;
  line-height: 1;
  color: var(--navy-deep);
}

.menu {
  color: var(--navy-deep);
  font-size: 30px;
  line-height: 1;
}

/* HERO */

.hero {
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: flex-end;
  background-image: url("https://thumb.wikimedia.org/wikipedia/commons/thumb/6/68/NH_85738_U.S._Navy_Blimp_J-4.png/1920px-NH_85738_U.S._Navy_Blimp_J-4.png");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      180deg,
      rgba(7, 27, 51, 0.12) 0%,
      rgba(7, 27, 51, 0.32) 38%,
      rgba(7, 27, 51, 0.84) 68%,
      rgba(7, 27, 51, 0.96) 100%
    ),
    linear-gradient(
      90deg,
      rgba(7, 27, 51, 0.46) 0%,
      rgba(7, 27, 51, 0.12) 72%,
      rgba(7, 27, 51, 0.04) 100%
    );
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 90%;
  max-width: 760px;
  padding: 56px 28px 64px;
}

.eyebrow {
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.33em;
}

.eyebrow-line {
  width: 70px;
  height: 2px;
  margin-top: 14px;
  margin-bottom: 36px;
  background: rgba(255, 255, 255, 0.88);
}

.hero-title {
  max-width: 680px;
  color: #fff;
  font-size: clamp(40px, 7vw, 68px);
  line-height: 1.06;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero-description {
  max-width: 620px;
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(18px, 2.5vw, 24px);
  line-height: 1.55;
}

/* MAIN CONTENT */

.content {
  padding: 34px 28px 48px;
}

.options {
  max-width: 960px;
  margin: 0 auto;
}

.option {
  min-height: 108px;
  margin-bottom: 18px;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  gap: 18px;
  background: linear-gradient(90deg, #e8f3fb 0%, #eef6fb 100%);
  border-radius: 12px;
  color: var(--navy-deep);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.option.main {
  background: linear-gradient(90deg, #1f609c 0%, #19568e 100%);
  color: white;
}

.icon-wrap {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: #d7ebf8;
}

.dark-icon {
  background: rgba(9, 49, 90, 0.45);
}

.icon-wrap img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  display: block;
}

.option-copy {
  flex: 1;
  min-width: 0;
}

.option-title {
  font-size: 22px;
  line-height: 1.25;
  font-weight: 700;
}

.option-subtitle {
  margin-top: 7px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.4;
}

.option.main .option-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

.arrow {
  flex-shrink: 0;
  font-size: 42px;
  line-height: 1;
  font-weight: 300;
  transition: transform 0.15s ease;
}

.option:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(18, 52, 93, 0.12);
}

.option.main:hover {
  background: linear-gradient(90deg, #1b578d 0%, #164d80 100%);
}

.option:hover .arrow {
  transform: translateX(4px);
}

.option:active {
  transform: scale(0.985);
}

/* GUIDE CARD */

.guide-card {
  max-width: 960px;
  margin: 32px auto 0;
  padding: 28px 28px 32px;
  background: linear-gradient(180deg, #f6f9fc 0%, #eef4f8 100%);
  border-radius: 12px;
}

.guide-heading h2 {
  color: var(--navy-deep);
  font-size: 27px;
  line-height: 1.2;
  font-weight: 700;
}

.guide-heading p {
  margin-top: 8px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.45;
}

.guide-steps {
  margin-top: 30px;
  display: grid;
  grid-template-columns: 1fr 1px 1fr 1px 1fr;
  align-items: stretch;
}

.guide-step {
  padding: 0 18px;
  text-align: center;
}

.step-number {
  width: 44px;
  height: 44px;
  margin: 0 auto 16px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #dbeaf5;
  color: var(--navy-deep);
  font-size: 18px;
  font-weight: 700;
}

.step-icon {
  height: 38px;
  display: grid;
  place-items: center;
  color: var(--navy-deep);
  font-size: 32px;
  line-height: 1;
}

.step-icon img {
  display: block;
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.guide-step h3 {
  margin-top: 8px;
  color: var(--navy-deep);
  font-size: 20px;
  font-weight: 700;
}

.guide-step p {
  max-width: 190px;
  margin: 8px auto 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.45;
}

.guide-divider {
  width: 1px;
  background: #d4e0ea;
}

/* MOBILE */

@media (max-width: 640px) {
  .header {
    height: 76px;
    padding: 0 20px;
  }

  .museum-name {
    font-size: 20px;
  }

  .menu {
    font-size: 27px;
  }

  .hero {
    background-position: center;
  }

  .hero-overlay {
    background:
      linear-gradient(
        180deg,
        rgba(7, 27, 51, 0.08) 0%,
        rgba(7, 27, 51, 0.28) 36%,
        rgba(7, 27, 51, 0.88) 66%,
        rgba(7, 27, 51, 0.98) 100%
      ),
      linear-gradient(90deg, rgba(7, 27, 51, 0.38) 0%, rgba(7, 27, 51, 0.08) 100%);
  }

  .hero-content {
    width: 100%;
    padding: 42px 20px 52px;
  }

  .eyebrow {
    font-size: 12px;
    letter-spacing: 0.31em;
  }

  .eyebrow-line {
    width: 52px;
    margin-top: 12px;
    margin-bottom: 30px;
  }

  .hero-title {
    font-size: 42px;
    max-width: 370px;
  }

  .hero-description {
    max-width: 360px;
  }

  .content {
    padding: 28px 20px 42px;
  }

  .option {
    min-height: 96px;
    padding: 16px;
    gap: 14px;
  }

  .icon-wrap {
    width: 50px;
    height: 50px;
  }

  .icon-wrap img {
    width: 30px;
    height: 30px;
  }

  .option-title {
    font-size: 18px;
  }

  .option-subtitle {
    font-size: 14px;
  }

  .arrow {
    font-size: 36px;
  }

  .guide-card {
    margin-top: 28px;
    padding: 24px 18px 26px;
  }

  .guide-heading h2 {
    font-size: 24px;
  }

  .guide-heading p {
    font-size: 15px;
  }

  .guide-step {
    padding: 0 8px;
  }

  .step-number {
    width: 38px;
    height: 38px;
    font-size: 16px;
  }

  .step-icon {
    font-size: 28px;
  }

  .guide-step h3 {
    font-size: 17px;
  }

  .guide-step p {
    font-size: 13px;
  }
}

/* DESKTOP FRAME */

@media (min-width: 1100px) {
  body {
    padding: 34px 18px;
  }

  .page {
    max-width: 1180px;
    margin: 0 auto;
    box-shadow: 0 24px 60px rgba(21, 42, 67, 0.14);
  }
}