:root {
  color-scheme: light;
  --ink: #17324d;
  --green: #2f7d4f;
  --leaf: #86c35b;
  --blue: #47a6d9;
  --red: #e4573d;
  --yellow: #f3c14b;
  --paper: #f6fbf2;
  --panel: #ffffff;
  --muted: #5e7180;
  --line: #c9d8ca;
  --shadow: 0 20px 58px rgba(23, 50, 77, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Verdana, Geneva, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 24px 24px, rgba(47, 125, 79, 0.18) 2px, transparent 3px),
    linear-gradient(135deg, rgba(71, 166, 217, 0.16), transparent 32%),
    var(--paper);
  background-size: 48px 48px, auto, auto;
}

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

img {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

.field-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px clamp(16px, 5vw, 70px);
  background: rgba(246, 251, 242, 0.92);
  border-bottom: 2px dashed var(--green);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.compass {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  background: conic-gradient(from 45deg, var(--red), var(--yellow), var(--blue), var(--green), var(--red));
  color: #ffffff;
  border: 3px solid var(--ink);
  border-radius: 50%;
  font-weight: 950;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.05;
}

.brand strong {
  font-size: 21px;
}

.brand small {
  margin-top: 3px;
  color: var(--green);
  font-size: 11px;
  font-weight: 950;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.field-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.field-nav a {
  padding: 10px 12px;
  border: 2px solid transparent;
  border-radius: 6px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 950;
}

.field-nav a:hover,
.field-nav a.active {
  background: #ffffff;
  border-color: var(--green);
}

.nav-toggle {
  display: none;
}

main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.basecamp-hero {
  display: grid;
  grid-template-columns: minmax(360px, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
  min-height: calc(100vh - 82px);
  padding: 42px 0;
}

.hero-map {
  position: relative;
  min-height: 610px;
}

.hero-map img,
.photo-journal img,
.method-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 3px solid var(--ink);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-map img {
  min-height: 610px;
}

.map-pin {
  position: absolute;
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  background: var(--yellow);
  border: 2px solid var(--ink);
  border-radius: 999px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

.pin-one {
  top: 14%;
  left: 12%;
}

.pin-two {
  right: 10%;
  top: 48%;
  background: var(--blue);
  color: #ffffff;
}

.pin-three {
  left: 22%;
  bottom: 12%;
  background: var(--red);
  color: #ffffff;
}

.hero-log {
  padding: clamp(24px, 5vw, 52px);
  background: #ffffff;
  border: 3px solid var(--ink);
  border-radius: 8px;
  box-shadow: 12px 12px 0 var(--leaf);
}

.tag {
  margin: 0 0 12px;
  color: var(--red);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1,
h2 {
  font-family: "Arial Black", Verdana, sans-serif;
  letter-spacing: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(44px, 7vw, 82px);
  line-height: 0.92;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(30px, 4.5vw, 56px);
  line-height: 0.96;
}

h3 {
  margin-bottom: 9px;
  font-size: 21px;
}

p,
li,
span {
  line-height: 1.7;
}

p,
li {
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 2px solid var(--ink);
  border-radius: 6px;
  font-weight: 950;
  cursor: pointer;
}

.button.red {
  background: var(--red);
  color: #ffffff;
}

.button.blue {
  background: var(--blue);
  color: #ffffff;
}

.button.green {
  background: var(--green);
  color: #ffffff;
}

.field-cards,
.expedition-board,
.feature-trail,
.photo-journal,
.page-intro,
.program-filter,
.learning-map,
.faq-camp,
.method-hero,
.principles,
.guide-team,
.safety-field,
.field-gallery,
.notes-grid,
.admissions-hero,
.admissions-grid {
  margin: clamp(56px, 8vw, 100px) 0;
}

.field-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.field-cards article,
.trail-grid article,
.map-grid article,
.principles article,
.guide-team article,
.notes-grid article,
.program-picker,
.admissions-form,
.admission-features,
.academy-info {
  background: #ffffff;
  border: 2px solid var(--ink);
  border-radius: 8px;
}

.field-cards article,
.trail-grid article,
.map-grid article,
.principles article,
.program-picker,
.admissions-form,
.admission-features,
.academy-info {
  padding: 22px;
}

.field-cards span,
.program-entry span,
.principles span {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--green);
  font-weight: 950;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 12px;
}

.expedition-board {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 28px;
  align-items: center;
}

.expedition-list {
  display: grid;
  gap: 12px;
}

.expedition-list a {
  display: grid;
  grid-template-columns: 0.5fr 1fr;
  gap: 14px;
  align-items: center;
  padding: 18px;
  background: #ffffff;
  border: 2px dashed var(--green);
  border-radius: 8px;
}

.expedition-list strong {
  color: var(--ink);
}

.feature-trail {
  padding: clamp(24px, 5vw, 48px);
  background: #e5f4ff;
  border: 3px solid var(--blue);
  border-radius: 8px;
}

.trail-grid,
.map-grid,
.notes-grid > div,
.guide-team > div {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.photo-journal,
.method-hero,
.admissions-hero,
.admissions-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 28px;
  align-items: center;
}

.photo-journal img,
.method-hero img {
  min-height: 430px;
}

.photo-journal div,
.safety-field {
  padding: clamp(24px, 5vw, 46px);
  background: #ffffff;
  border: 3px solid var(--ink);
  border-radius: 8px;
}

.page-intro {
  padding-top: 34px;
  border-bottom: 2px dashed var(--green);
}

.page-intro p {
  max-width: 820px;
  font-size: 18px;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 18px;
}

.filter-button {
  min-height: 42px;
  padding: 0 14px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: #ffffff;
  color: var(--ink);
  font-weight: 950;
  cursor: pointer;
}

.filter-button.active {
  background: var(--green);
  color: #ffffff;
}

.program-ledger {
  display: grid;
  gap: 16px;
}

.program-entry {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  overflow: hidden;
  background: #ffffff;
  border: 2px solid var(--ink);
  border-radius: 8px;
}

.program-entry[hidden] {
  display: none;
}

.program-entry img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
}

.program-entry div {
  padding: 24px;
}

.program-entry strong {
  display: block;
  color: var(--green);
  line-height: 1.5;
}

.faq-question {
  width: 100%;
  margin-top: 9px;
  padding: 18px;
  text-align: left;
  background: #ffffff;
  border: 2px solid var(--ink);
  border-radius: 8px;
  color: var(--ink);
  font-weight: 950;
  cursor: pointer;
}

.faq-answer {
  display: none;
  padding: 0 18px 8px;
}

.faq-question.open + .faq-answer {
  display: block;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.guide-team article {
  overflow: hidden;
}

.guide-team img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.guide-team h3,
.guide-team p {
  padding-inline: 18px;
}

.guide-team h3 {
  margin-top: 18px;
}

.guide-team p {
  padding-bottom: 18px;
}

.field-gallery {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr 0.95fr;
  grid-auto-rows: 240px;
  gap: 12px;
}

.field-photo {
  width: 100%;
  height: 100%;
  padding: 0;
  border: 3px solid var(--ink);
  border-radius: 8px;
  overflow: hidden;
  background: #ffffff;
  cursor: zoom-in;
}

.field-photo.tall {
  grid-row: span 2;
}

.field-photo.wide {
  grid-column: span 2;
}

.field-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.program-picker,
.admissions-form {
  display: grid;
  gap: 14px;
}

.academy-info {
  display: grid;
  gap: 5px;
  margin-top: 20px;
}

.academy-info strong,
.academy-info span {
  display: block;
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 950;
}

input,
select,
textarea {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--ink);
  border-radius: 6px;
  background: #ffffff;
  color: var(--ink);
}

textarea {
  resize: vertical;
}

.picker-output {
  padding: 18px;
  background: var(--yellow);
  border: 2px solid var(--ink);
  border-radius: 8px;
  font-family: "Arial Black", Verdana, sans-serif;
  font-size: 24px;
  line-height: 1.1;
}

.form-message {
  min-height: 24px;
  margin: 0;
  color: var(--green);
  font-weight: 950;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  place-items: center;
  padding: 24px;
  background: rgba(23, 50, 77, 0.88);
}

.lightbox.open {
  display: grid;
}

.lightbox img {
  max-width: min(980px, 94vw);
  max-height: 76vh;
  object-fit: contain;
  border-radius: 8px;
}

.lightbox p {
  color: #ffffff;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: 18px;
  right: 18px;
  min-height: 42px;
  padding: 0 14px;
  border: 2px solid var(--ink);
  border-radius: 6px;
  background: var(--yellow);
  color: var(--ink);
  font-weight: 950;
  cursor: pointer;
}

.field-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(16px, 5vw, 70px);
  background: var(--ink);
  color: #ffffff;
}

.field-footer span {
  color: #d3e0e9;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

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

@media (max-width: 980px) {
  .field-header {
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 14px;
    margin-left: auto;
    border: 2px solid var(--ink);
    border-radius: 6px;
    background: #ffffff;
    color: var(--ink);
    font-weight: 950;
  }

  .field-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    padding-top: 8px;
  }

  .field-header.nav-open .field-nav {
    display: flex;
  }

  .basecamp-hero,
  .expedition-board,
  .photo-journal,
  .method-hero,
  .admissions-hero,
  .admissions-grid {
    grid-template-columns: 1fr;
  }

  .trail-grid,
  .map-grid,
  .notes-grid > div,
  .guide-team > div {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  main {
    width: min(100% - 24px, 1180px);
  }

  h1 {
    font-size: clamp(40px, 14vw, 62px);
  }

  .hero-map,
  .hero-map img {
    min-height: 420px;
  }

  .map-pin {
    position: static;
    margin: 8px 6px 0 0;
  }

  .field-cards,
  .trail-grid,
  .map-grid,
  .notes-grid > div,
  .guide-team > div,
  .principles,
  .program-entry,
  .expedition-list a {
    grid-template-columns: 1fr;
  }

  .field-gallery {
    grid-template-columns: 1fr;
    grid-auto-rows: 250px;
  }

  .field-photo.tall,
  .field-photo.wide {
    grid-column: auto;
    grid-row: auto;
  }

  .field-footer {
    flex-direction: column;
  }
}

.gallery-return {
  position: fixed;
  right: clamp(16px, 3vw, 34px);
  bottom: clamp(16px, 3vw, 34px);
  z-index: 90;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 3px solid var(--ink);
  border-radius: 6px;
  background: var(--green);
  color: #ffffff;
  box-shadow: 6px 6px 0 var(--yellow);
  font-weight: 950;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.gallery-return:hover {
  transform: translate(-2px, -2px);
  box-shadow: 9px 9px 0 var(--yellow);
}

@media (max-width: 520px) {
  .gallery-return {
    right: 12px;
    bottom: 12px;
    min-height: 42px;
    padding: 0 14px;
    font-size: 14px;
  }
}