/* ==========================================================================
   Tokens
   ========================================================================== */
:root {
  --color-ink: #0f1a14;
  --color-forest: #1d4a35;
  --color-forest-deep: #143626;
  --color-sage: #3d7a55;
  --color-sage-light: #a6d1b3;
  --color-lake: #2a6d8c;
  --color-sky: #e1f0f5;
  --color-sky-soft: #eef6f0;
  --color-sky-strong: #c9e4d3;
  --color-white: #fff;
  --color-line: rgb(15 26 20 / 0.2);

  --font-display: "Outfit", "Segoe UI", sans-serif;
  --font-body: "DM Sans", "Segoe UI", sans-serif;

  --gutter: 1.25rem;
  --max-width: 72rem;
  --header-height: 4.5rem;
  --bottom-nav-height: 4rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.5rem;
  --space-6: 4rem;

  --radius-card: 1rem;
  --radius-pill: 999px;

  --shadow-raised: 0 1px 2px rgb(20 54 38 / 0.08), 0 10px 28px rgb(20 54 38 / 0.14);
  --ease-out: cubic-bezier(0.25, 1, 0.5, 1);
}

/* ==========================================================================
   Base
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-4);
}

body {
  margin: 0;
  padding-bottom: calc(var(--bottom-nav-height) + env(safe-area-inset-bottom, 0px));
  background: var(--color-white);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.65;
}

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

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-sage-light);
  outline-offset: 3px;
}

h1,
h2,
h3 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

p {
  margin: 0 0 var(--space-3);
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.container {
  width: min(100% - 2 * var(--gutter), var(--max-width));
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.button {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform 0.25s var(--ease-out);
}

.button:hover {
  transform: translateY(-2px);
}

.button:active {
  transform: translateY(0) scale(0.98);
}

.button--dark {
  background: var(--color-forest);
  color: var(--color-white);
  box-shadow: var(--shadow-raised);
}

.button--green {
  background: var(--color-sage);
  color: var(--color-white);
  box-shadow: var(--shadow-raised);
}

.button--light {
  background: var(--color-sky-strong);
  color: var(--color-forest);
}

/* ==========================================================================
   Header and navigation
   ========================================================================== */
.header {
  position: relative;
  z-index: 10;
  background: var(--color-white);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
}

.header__cta {
  display: none;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.logo__mark {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--color-forest);
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 300;
  letter-spacing: 0.02em;
}

.logo__text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 500;
}

.logo--light .logo__mark {
  background: var(--color-white);
  color: var(--color-forest);
}

.burger {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--color-forest);
  font-size: 1.35rem;
  cursor: pointer;
}

.burger:active {
  transform: scale(0.94);
}

.nav {
  display: none;
  position: absolute;
  inset: 100% 0 auto;
  padding: var(--space-3) var(--gutter) var(--space-4);
  background: var(--color-white);
  box-shadow: var(--shadow-raised);
}

.nav--open {
  display: block;
}

.nav__link {
  display: block;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-line);
  font-size: 0.95rem;
  text-decoration: none;
}

.nav__link:hover {
  color: var(--color-sage);
}

.bottom-nav {
  position: fixed;
  inset: auto 0 0;
  z-index: 20;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  background: var(--color-white);
  box-shadow: 0 -4px 20px rgb(20 54 38 / 0.14);
}

.bottom-nav__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  min-height: var(--bottom-nav-height);
  font-size: 0.7rem;
  font-weight: 500;
  text-decoration: none;
}

.bottom-nav__link i {
  font-size: 1.15rem;
}

.bottom-nav__link:hover,
.bottom-nav__link:active {
  color: var(--color-sage);
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  display: grid;
  overflow: hidden;
}

.hero__content {
  padding: var(--space-4) var(--gutter) var(--space-5);
}

.hero__eyebrow {
  margin-bottom: var(--space-2);
  color: var(--color-sage);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero__title {
  max-width: 14ch;
  padding-top: var(--space-4);
  font-size: clamp(2.25rem, 8vw, 3.5rem);
  font-weight: 600;
}

.hero__text {
  max-width: 34rem;
  margin-bottom: var(--space-4);
}

.hero__meta {
  margin-bottom: var(--space-3);
  font-weight: 500;
}

.hero__meta i {
  margin-right: var(--space-2);
  color: var(--color-sage);
}

.hero__media {
  display: none;
  width: min(80vw, 22rem);
  margin: 0 0 var(--space-5) auto;
  aspect-ratio: 1;
  transform: translateX(25%);
  overflow: hidden;
  border-radius: 50%;
  background: var(--color-sky);
  box-shadow: var(--shadow-raised);
}

.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ==========================================================================
   Sections
   ========================================================================== */
.section {
  padding-block: var(--space-6);
}

.section--sky {
  background: var(--color-sky);
}

.section--video {
  padding-top: calc(var(--space-6) / 2);
}

.section--walk {
  padding-top: calc(var(--space-6) * 0.75);
}

.section--about {
  padding-block: calc(var(--space-6) * 0.75);
}

.section--soft {
  background: var(--color-sky-soft);
}

.section--sage {
  background: var(--color-sage);
  color: var(--color-white);
}

.section__title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 300;
}

.section__title--centre {
  text-align: center;
}

.section__intro {
  max-width: 40rem;
}

.section__intro--centre {
  margin-inline: auto;
  text-align: center;
}

.split {
  display: grid;
  gap: var(--space-5);
}

/* ==========================================================================
   Video
   ========================================================================== */
.video {
  display: grid;
  place-items: center;
  max-width: 52rem;
  margin: var(--space-4) auto 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--color-forest);
  box-shadow: var(--shadow-raised);
  color: var(--color-white);
  text-align: center;
}

.video__placeholder {
  padding: var(--space-3);
  font-size: 0.9rem;
}

.video iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* ==========================================================================
   Facts list (reference "Services" rows)
   ========================================================================== */
.facts {
  margin-top: var(--space-4);
  border-top: 1px solid var(--color-line);
}

.facts__row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-line);
}

.facts__label i {
  width: 1.5rem;
  color: var(--color-sage);
}

.facts__value {
  font-weight: 500;
  text-align: right;
}

.card-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 10px;
  background: var(--color-sky);
  box-shadow: 0 2px 4px rgb(20 54 38 / 0.12), 0 18px 48px rgb(20 54 38 / 0.28);
}

.card-media__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ==========================================================================
   Circles (reference "Mission" and "Skills")
   ========================================================================== */
.circles {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.circle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: min(12rem, 42vw);
  aspect-ratio: 1;
  padding: var(--space-4) var(--space-3);
  border-radius: 50%;
  background: var(--color-forest);
  box-shadow: var(--shadow-raised);
  color: var(--color-white);
  text-align: center;
}

.circle:nth-child(even) {
  background: var(--color-lake);
}

.circle__icon {
  margin-bottom: var(--space-2);
  color: var(--color-sage-light);
  font-size: 1.25rem;
}

.circle__label {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.circle__value {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 300;
  line-height: 1.2;
  text-wrap: balance;
}

.start-point {
  margin-top: var(--space-5);
  text-align: center;
}

.start-point__words {
  display: block;
  margin-bottom: var(--space-3);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 300;
}

/* ==========================================================================
   Walk list (home page) and previous / next links (walk pages)
   ========================================================================== */
.walk-title {
  font-size: 1.5rem;
  font-weight: 500;
}

.walk-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 18rem), 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.walk-card {
  padding: var(--space-4);
  border-radius: var(--radius-card);
  background: var(--color-white);
  box-shadow: var(--shadow-raised);
}

.walk-card__date {
  font-weight: 500;
}

.section--compact {
  padding-block: var(--space-5);
}

.walk-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
}

.walk-nav__link {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  text-decoration: none;
}

a.walk-nav__link:hover {
  color: var(--color-sage);
}

.walk-nav__link--next {
  margin-left: auto;
  text-align: right;
}

.walk-nav__label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ==========================================================================
   Gallery
   ========================================================================== */
.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.gallery__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-card);
  background: var(--color-sky);
}

/* ==========================================================================
   Accordion (practical notes)
   ========================================================================== */
.accordion__item {
  border-bottom: 1px solid var(--color-line);
}

.accordion__item:first-child {
  border-top: 1px solid var(--color-line);
}

.accordion__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
}

.accordion__summary::-webkit-details-marker {
  display: none;
}

.accordion__icon {
  display: grid;
  flex-shrink: 0;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border: 1.5px solid var(--color-sage);
  border-radius: 50%;
  color: var(--color-sage);
  font-size: 0.8rem;
  transition: transform 0.25s var(--ease-out);
}

.accordion__item[open] .accordion__icon {
  transform: rotate(45deg);
}

.accordion__body {
  padding-bottom: var(--space-3);
}

/* ==========================================================================
   About / portrait (reference "Contact")
   ========================================================================== */
.about {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}

.portrait {
  position: relative;
  width: min(18rem, 80%);
  margin-inline: auto;
}

.portrait::before {
  content: "";
  position: absolute;
  top: -1.5rem;
  left: -1.5rem;
  width: 60%;
  aspect-ratio: 1;
  border-radius: 10px;
  background: var(--color-sage-light);
}

.portrait__image {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  object-position: 62% 30%;
  border-radius: 10px;
  box-shadow: 0 2px 4px rgb(20 54 38 / 0.12), 0 18px 48px rgb(20 54 38 / 0.28);
}

.about__title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 300;
}

.about__links {
  margin: var(--space-4) 0;
}

.about__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: 1.1rem;
  text-decoration: none;
}

.about__link:hover {
  text-decoration: underline;
}

.about__link i {
  width: 1.5rem;
  text-align: center;
}

/* ==========================================================================
   Conditions (weather and light)
   ========================================================================== */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8.5rem, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.stats__heading {
  margin-bottom: var(--space-3);
  font-size: 1.1rem;
  font-weight: 500;
}

.stat {
  padding: var(--space-3);
  border: 1px solid rgb(255 255 255 / 0.3);
  border-radius: var(--radius-card);
  background: rgb(255 255 255 / 0.1);
}

.stat__label {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.stat__value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 300;
  line-height: 1.3;
}

.conditions__note {
  margin: 0;
  font-size: 0.85rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding: calc(var(--space-6) * 0.75) 0 var(--space-4);
  background: var(--color-forest);
  color: var(--color-white);
}

.footer__grid {
  display: grid;
  gap: var(--space-5);
}

.footer__tagline {
  max-width: 18rem;
  margin: var(--space-3) 0 0;
  font-size: 0.9rem;
}

.footer__link {
  display: inline-block;
  padding: var(--space-1) 0;
  font-size: 1.1rem;
  text-decoration: none;
}

.footer__link:hover {
  text-decoration: underline;
}

.footer__link i {
  width: 1.75rem;
}

.footer__legal {
  margin: var(--space-5) 0 0;
  font-size: 0.8rem;
}

/* ==========================================================================
   Breakpoints
   ========================================================================== */
@media (min-width: 48rem) {
  .gallery {
    grid-template-columns: repeat(3, 1fr);
  }

  .split {
    grid-template-columns: 1fr 1.6fr;
    gap: var(--space-6);
    align-items: start;
  }

  .split--even {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
  }

  .split--even .card-media {
    aspect-ratio: auto;
  }

  .split--video {
    grid-template-columns: 1.1fr 1fr;
    align-items: center;
  }

  .split--video .video {
    max-width: none;
    margin: 0;
  }

  .about {
    grid-template-columns: 1fr 1.2fr;
  }

  .footer__grid {
    grid-template-columns: 1.2fr 1fr 1fr;
  }
}

@media (min-width: 62rem) {
  body {
    padding-bottom: 0;
  }

  .burger,
  .bottom-nav {
    display: none;
  }

  .header__cta {
    display: inline-block;
  }

  .header__inner {
    min-height: 6rem;
  }

  .nav {
    position: static;
    display: block;
    margin-right: auto;
    margin-left: var(--space-5);
    padding: 0;
    box-shadow: none;
  }

  .nav__list {
    display: flex;
    gap: var(--space-5);
  }

  .nav__link {
    padding: var(--space-2) 0;
    border-bottom: 0;
    font-size: 0.8rem;
  }

  .hero {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .hero__content {
    align-self: center;
    padding: 0 var(--space-5) var(--space-5)
      max(var(--gutter), calc((100vw - var(--max-width)) / 2));
  }

  .hero__media {
    display: block;
    position: absolute;
    top: 50%;
    right: 0;
    width: clamp(34rem, 56vw, 52rem);
    margin: 0;
    transform: translate(30%, -50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button,
  .accordion__icon {
    transition: none;
  }
}

.facts-heading {
  margin: var(--space-5) 0 0;
  font-size: 1.1rem;
  font-weight: 500;
}