/* ============================================
   Esprit Bartas — Stylesheet
   Lightweight static site, nature/hiking theme
   ============================================ */

/* --- Custom Properties --- */
:root {
  --color-primary: #2c5f2d;      /* Forest green */
  --color-primary-dark: #1a3c1b;
  --color-primary-light: #4a8c4b;
  --color-accent: #c2956b;        /* Earthy tan */
  --color-accent-light: #e8d5c0;
  --color-bg: #faf8f5;            /* Warm off-white */
  --color-bg-alt: #f0ece6;
  --color-text: #2d2a26;
  --color-text-light: #5a5650;
  --color-text-muted: #8a8580;
  --color-white: #ffffff;
  --color-border: #d9d4cc;

  --font-heading: 'Merriweather', Georgia, serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;

  --max-width: 1100px;
  --header-height: 70px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --radius: 6px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.12);
  --transition: 0.25s ease;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-light);
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  line-height: 1.3;
}

h1 { font-size: 2rem; margin-bottom: var(--spacing-md); }
h2 { font-size: 1.5rem; margin-bottom: var(--spacing-sm); }
h3 { font-size: 1.25rem; margin-bottom: var(--spacing-xs); }

p {
  margin-bottom: var(--spacing-sm);
}

blockquote {
  border-left: 4px solid var(--color-accent);
  padding: var(--spacing-sm) var(--spacing-md);
  margin: var(--spacing-md) 0;
  background: var(--color-bg-alt);
  font-style: italic;
  color: var(--color-text-light);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* --- Header --- */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.site-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  white-space: nowrap;
}

.site-logo:hover {
  color: var(--color-primary);
}

/* --- Navigation --- */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--color-primary-dark);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger {
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

/* Hamburger → X animation */
.nav-toggle[aria-expanded="true"] .hamburger {
  background: transparent;
}
.nav-toggle[aria-expanded="true"] .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 0;
}

.nav-list > li {
  position: relative;
}

.nav-list > li > a {
  display: block;
  padding: 0 var(--spacing-sm);
  line-height: var(--header-height);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  transition: color var(--transition), background-color var(--transition);
}

.nav-list > li > a:hover,
.nav-list > li.active > a {
  color: var(--color-primary);
  background-color: var(--color-bg-alt);
}

/* Dropdown */
.dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-lg);
  list-style: none;
  z-index: 200;
}

.nav-list > li:hover > .dropdown,
.nav-list > li:focus-within > .dropdown {
  display: block;
}

.dropdown li a {
  display: block;
  padding: 0.6rem var(--spacing-md);
  color: var(--color-text);
  font-size: 0.9375rem;
  border-bottom: 1px solid var(--color-bg-alt);
  transition: background-color var(--transition), color var(--transition);
}

.dropdown li:last-child a {
  border-bottom: none;
}

.dropdown li a:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
}

/* --- Main Content --- */
.site-main {
  flex: 1;
  padding: var(--spacing-xl) 0;
}

/* --- Page Intro Section --- */
.page-intro {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.page-intro h1 {
  font-size: 2.25rem;
  margin-bottom: var(--spacing-sm);
}

.page-intro .lead {
  font-size: 1.15rem;
  color: var(--color-text-light);
  max-width: 700px;
  margin: 0 auto;
}

/* --- Section Cards (Homepage & Intro pages) --- */
.section-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.section-card {
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.section-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.section-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.section-card .card-body {
  padding: var(--spacing-md);
}

.section-card h3 {
  margin-bottom: var(--spacing-xs);
}

.section-card h3 a {
  color: var(--color-primary-dark);
}

.section-card h3 a:hover {
  color: var(--color-primary);
}

.section-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* --- Content Article (sub-pages) --- */
.article-content {
  max-width: 800px;
  margin: 0 auto;
}

.article-content h1 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: var(--spacing-md) auto;
  box-shadow: var(--shadow);
  display: block;
}

.article-content figure {
  margin: var(--spacing-lg) 0;
  text-align: center;
  max-width: 100%;
  overflow: hidden;
}

.article-content figcaption {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
  font-style: italic;
}

/* Image gallery grid */
.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-sm);
  margin: var(--spacing-lg) 0;
}

.image-gallery img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform var(--transition);
}

.image-gallery img:hover {
  transform: scale(1.03);
}

/* --- Carousel (Swiper) --- */
.carousel-container {
  margin: var(--spacing-lg) 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.swiper {
  width: 100%;
  max-height: 500px;
}

.swiper-slide {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
}

.swiper-slide img {
  max-width: 100%;
  max-height: 500px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.swiper-button-next,
.swiper-button-prev {
  color: var(--color-white) !important;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}

.swiper-pagination-bullet-active {
  background: var(--color-accent) !important;
}

/* Carousel captions */
.carousel-captions {
  display: none;
}

/* --- Sub-page Links List --- */
.subpage-list {
  list-style: none;
  margin: var(--spacing-lg) 0;
}

.subpage-list li {
  border-bottom: 1px solid var(--color-border);
}

.subpage-list li:first-child {
  border-top: 1px solid var(--color-border);
}

.subpage-list a {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  font-weight: 600;
  transition: background-color var(--transition);
}

.subpage-list a:hover {
  background-color: var(--color-bg-alt);
}

.subpage-list a::after {
  content: '→';
  margin-left: auto;
  color: var(--color-accent);
  font-size: 1.25rem;
}

/* --- Notice Box (nature respect) --- */
.notice-box {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  font-size: 0.95rem;
  color: var(--color-text-light);
}

.notice-box strong {
  color: var(--color-primary-dark);
}

/* --- External Links Section --- */
.external-links {
  margin: var(--spacing-lg) 0;
}

.external-links h2 {
  margin-bottom: var(--spacing-sm);
}

.external-links ul {
  list-style: disc;
  padding-left: var(--spacing-md);
}

.external-links li {
  margin-bottom: var(--spacing-xs);
}

.external-links a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-primary-dark);
  color: var(--color-accent-light);
  padding: var(--spacing-lg) 0;
  margin-top: auto;
}

.site-footer .page-quote {
  border-left-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-accent-light);
  margin-bottom: var(--spacing-lg);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.875rem;
}

.footer-bottom p {
  margin-bottom: var(--spacing-xs);
}

.footer-note {
  font-style: italic;
  color: var(--color-accent);
}

/* --- Responsive --- */

/* Tablet */
@media (max-width: 900px) {
  .nav-list > li > a {
    padding: 0 0.6rem;
    font-size: 0.85rem;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .nav-toggle {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }

  .main-nav.is-open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
  }

  .nav-list > li > a {
    line-height: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-bg-alt);
  }

  /* Dropdown as accordion on mobile */
  .dropdown {
    position: static;
    border: none;
    border-top: none;
    box-shadow: none;
    min-width: 100%;
    border-radius: 0;
    background: var(--color-bg-alt);
  }

  .dropdown li a {
    padding-left: var(--spacing-lg);
  }

  .nav-list > li:hover > .dropdown,
  .nav-list > li:focus-within > .dropdown {
    display: none;
  }

  .nav-list > li.dropdown-open > .dropdown {
    display: block;
  }

  h1 { font-size: 1.75rem; }
  .page-intro h1 { font-size: 1.75rem; }

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

  .image-gallery {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

/* Large screens */
@media (min-width: 1200px) {
  h1 { font-size: 2.5rem; }
  .page-intro h1 { font-size: 2.75rem; }
}