/* ============================================
   Lake Kawaguchiko — Design System
   Japanese-inspired warm stone palette
   ============================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Noto+Serif+JP:wght@300;400;500;700&display=swap');

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
  /* Warm Stone Palette */
  --color-stone-50: #FAF8F5;
  --color-stone-100: #F3EDE6;
  --color-stone-200: #E8DDD0;
  --color-stone-300: #D4C5B2;
  --color-stone-400: #BFA98E;
  --color-stone-500: #A8906E;
  --color-stone-600: #8B7355;
  --color-stone-700: #6B5840;
  --color-stone-800: #4A3D2E;
  --color-stone-900: #2E2620;

  /* Accent Colors */
  --color-indigo: #2C3E50;
  --color-indigo-light: #3D5366;
  --color-sakura: #E8B4B8;
  --color-sakura-soft: #F2D5D8;
  --color-sage: #8FA38B;
  --color-sage-light: #B5C9B2;
  --color-mist: #C8D6DF;
  --color-mist-light: #E4ECF1;
  --color-fuji-blue: #6B8FA3;

  /* Semantic Colors */
  --color-bg: var(--color-stone-50);
  --color-bg-alt: var(--color-stone-100);
  --color-text: var(--color-stone-900);
  --color-text-secondary: var(--color-stone-600);
  --color-text-light: var(--color-stone-500);
  --color-heading: var(--color-stone-800);
  --color-accent: var(--color-stone-600);
  --color-accent-hover: var(--color-stone-700);
  --color-border: var(--color-stone-200);
  --color-card-bg: #FFFFFF;

  /* Typography */
  --font-heading: 'Noto Serif JP', 'Georgia', serif;
  --font-body: 'Inter', 'Helvetica Neue', sans-serif;

  --text-xs: clamp(0.7rem, 0.65rem + 0.2vw, 0.8rem);
  --text-sm: clamp(0.8rem, 0.75rem + 0.25vw, 0.9rem);
  --text-base: clamp(0.95rem, 0.9rem + 0.25vw, 1.05rem);
  --text-lg: clamp(1.1rem, 1rem + 0.4vw, 1.25rem);
  --text-xl: clamp(1.3rem, 1.1rem + 0.6vw, 1.6rem);
  --text-2xl: clamp(1.6rem, 1.3rem + 1vw, 2.2rem);
  --text-3xl: clamp(2rem, 1.5rem + 1.5vw, 3rem);
  --text-4xl: clamp(2.5rem, 1.8rem + 2.2vw, 4rem);
  --text-hero: clamp(3rem, 2rem + 3vw, 5.5rem);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --nav-height: 72px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(46, 38, 32, 0.06);
  --shadow-md: 0 4px 12px rgba(46, 38, 32, 0.08);
  --shadow-lg: 0 8px 30px rgba(46, 38, 32, 0.1);
  --shadow-xl: 0 16px 50px rgba(46, 38, 32, 0.12);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--color-accent-hover);
}

ul,
ol {
  list-style: none;
}

/* ============================================
   Typography
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  line-height: 1.25;
  font-weight: 500;
  letter-spacing: -0.01em;
}

h1 {
  font-size: var(--text-4xl);
}

h2 {
  font-size: var(--text-3xl);
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

h5 {
  font-size: var(--text-lg);
}

p {
  margin-bottom: var(--space-md);
  max-width: 68ch;
}

.subheading {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 300;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-inline: auto !important;
  text-align: center;
  max-width: 600px;
}

/* ============================================
   Layout
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: var(--space-5xl) 0;
}

#guides {
  padding-top: var(--space-3xl);
}

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

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  padding-top: env(safe-area-inset-top, 0px);
  z-index: 1000;
  background-color: rgba(250, 248, 245, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: background-color var(--transition-base),
    box-shadow var(--transition-base),
    backdrop-filter var(--transition-base);
}

.nav--scrolled {
  background-color: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-md);
}

.nav__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-heading);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  z-index: 1001;
}

.nav__logo-kanji {
  font-size: var(--text-xl);
  opacity: 1;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-left: auto;
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-stone-900);
  text-decoration: none;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
  font-weight: 600;
  /* Slightly bolder for better visibility */
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-stone-500);
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-stone-800);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

/* Nav Dropdowns */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-toggle {
  background: none;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav__chevron {
  transition: transform var(--transition-fast);
}

.nav__dropdown:hover .nav__chevron {
  transform: rotate(180deg);
}

.nav__dropdown-panel {
  position: absolute;
  top: calc(100% + var(--space-sm));
  left: 50%;
  transform: translateX(-50%);
  min-width: 200px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm) 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  z-index: 1000;
}

.nav__dropdown:hover .nav__dropdown-panel {
  opacity: 1;
  visibility: visible;
}

.nav__dropdown-item {
  display: block;
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-sm);
  color: var(--color-text);
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.nav__dropdown-item:hover {
  background-color: var(--color-stone-100);
  color: var(--color-stone-800);
}

/* Nav CTA Button */
.nav__cta {
  display: inline-flex;
  align-items: center;
  margin-left: var(--space-lg);
  padding: var(--space-sm) var(--space-lg);
  background-color: var(--color-stone-800);
  color: #fff;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-full);
  letter-spacing: 0.03em;
  transition: background-color var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  white-space: nowrap;
}

.nav__cta:hover {
  background-color: var(--color-stone-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.nav__cta--mobile {
  margin-top: var(--space-xl);
  padding: var(--space-md) var(--space-2xl);
  font-size: var(--text-base);
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  z-index: 1001;
}

.nav__hamburger-line {
  width: 24px;
  height: 2px;
  background-color: var(--color-stone-800);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.nav__hamburger--open .nav__hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__hamburger--open .nav__hamburger-line:nth-child(2) {
  opacity: 0;
}

.nav__hamburger--open .nav__hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.nav__mobile-overlay {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background-color: var(--color-card-bg);
  padding: var(--space-xl);
  gap: var(--space-md);
  box-shadow: 0 14px 45px rgba(0, 0, 0, 0.1);
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-10px);
  transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base);
}

.nav__mobile-overlay--visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.nav__mobile-link {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-stone-600);
  text-decoration: none;
  padding: var(--space-sm) 0;
  min-height: 44px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition-fast);
}

.nav__mobile-link:last-of-type {
  border-bottom: none;
}

.nav__mobile-link:hover,
.nav__mobile-link:active {
  color: var(--color-stone-900);
}

.nav__cta--mobile {
  margin-top: var(--space-sm);
  align-self: flex-start;
  padding: var(--space-md) var(--space-2xl);
  font-size: var(--text-base);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background-color: var(--color-stone-200);
  padding-top: var(--nav-height);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(243, 237, 230, 0.4), rgba(243, 237, 230, 0.2)),
    url('../images/hero.webp') no-repeat center center;
  background-size: cover;
  z-index: 0;
  /* Add a subtle zoom-in animation effect */
  animation: heroZoom 20s ease-out infinite alternate;
}

@keyframes heroZoom {
  from {
    transform: scale(1);
  }

  to {
    transform: scale(1.05);
  }
}

/* Subtle mountain silhouette decoration */
.hero__bg::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(180deg,
      transparent 0%,
      rgba(250, 248, 245, 0.3) 60%,
      var(--color-stone-50) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  padding: var(--space-xl);
  max-width: 900px;
  text-align: center;
}

.hero__pretitle {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-stone-800);
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.3s forwards;
  text-align: center;
  width: 100%;
}

.hero__title {
  font-size: var(--text-hero);
  font-weight: 700;
  color: var(--color-indigo);
  text-shadow: 0 2px 4px rgba(255, 255, 255, 0.3);
  margin-bottom: var(--space-lg);
  line-height: 1.1;
  letter-spacing: -0.02em;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.5s forwards;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-xl);
  font-weight: 300;
  color: var(--color-stone-800);
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.6;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.7s forwards;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-stone-800);
  padding: var(--space-md) var(--space-xl);
  background-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.9s forwards;
}

.hero__cta:hover {
  background-color: var(--color-stone-800);
  border-color: var(--color-stone-800);
  color: var(--color-stone-50);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.hero__scroll-indicator {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  opacity: 0;
  animation: fadeInUp 0.8s ease 1.2s forwards;
}

.hero__scroll-indicator span {
  display: block;
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--color-stone-400), transparent);
  margin: 0 auto;
  animation: scrollPulse 2s ease infinite;
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header__overline {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-stone-500);
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-md);
}

.section-header__title {
  margin-bottom: var(--space-lg);
}

.section-header__divider {
  width: 40px;
  height: 2px;
  background-color: var(--color-stone-300);
  margin: 0 auto var(--space-lg);
}

.section-header__description {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  font-weight: 300;
}

/* ============================================
   Content Pillar Cards
   ============================================ */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.pillar-card {
  position: relative;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.pillar-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-stone-300);
}

.pillar-card__img-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.pillar-card__img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.pillar-card:hover .pillar-card__img-wrapper img {
  transform: scale(1.1);
}

.pillar-card__body {
  padding: var(--space-lg) var(--space-2xl);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.pillar-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-stone-300);
}

.pillar-card__title {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-heading);
  margin-bottom: var(--space-sm);
}

.pillar-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.pillar-card__arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-stone-100);
  color: var(--color-stone-600);
  margin-top: auto;
  transition: background-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-base);
}

.pillar-card:hover .pillar-card__arrow {
  background-color: var(--color-stone-800);
  color: var(--color-stone-50);
  transform: translateX(4px);
}

/* Badge & Highlighting */
.badge {
  display: inline-block;
  padding: 0.35em 0.75em;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  vertical-align: middle;
  line-height: 1;
}

.badge--best {
  background-color: var(--color-sage);
  color: white;
  margin-right: 0.5rem;
}

.badge--value {
  background-color: var(--color-sakura);
  color: white;
  margin-right: 0.5rem;
}

.badge--photo {
  background-color: var(--color-fuji-blue);
  color: white;
  margin-right: 0.5rem;
}

/* ============================================
   Seasons Section
   ============================================ */
.seasons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.season-card {
  position: relative;
  min-height: 500px;
  /* Increased height for a more vertical look */
  padding: var(--space-2xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  transition: flex var(--transition-slow), transform var(--transition-base);
  cursor: pointer;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

#season-spring {
  background-image: url('../images/season-spring.png');
}

#season-summer {
  background-image: url('../images/season-summer.png');
}

#season-autumn {
  background-image: url('../images/season-autumn.png');
}

#season-winter {
  background-image: url('../images/season-winter.png');
}

.season-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
      rgba(0, 0, 0, 0) 0%,
      rgba(0, 0, 0, 0.2) 40%,
      rgba(0, 0, 0, 0.7) 100%);
  z-index: 1;
  transition: opacity var(--transition-base);
}

.season-card:hover::before {
  background: linear-gradient(180deg,
      rgba(0, 0, 0, 0.1) 0%,
      rgba(0, 0, 0, 0.4) 40%,
      rgba(0, 0, 0, 0.8) 100%);
}

.season-card__content {
  position: relative;
  z-index: 2;
}

.season-card__kanji {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  color: rgba(255, 255, 255, 0.3);
  position: absolute;
  top: var(--space-xl);
  left: var(--space-lg);
  z-index: 2;
  line-height: 1;
}

.season-card__name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 500;
  color: #fff;
  margin-bottom: var(--space-xs);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

.season-card__months {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.8);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.season-card__desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.5;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--transition-slow), opacity var(--transition-base);
}

.season-card:hover .season-card__desc {
  max-height: 200px;
  opacity: 1;
}

/* ============================================
   Why Visit Section
   ============================================ */
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
}

.highlight-item {
  text-align: center;
}

.highlight-item__number {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-stone-400);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.highlight-item__label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-heading);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
}

.highlight-item__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============================================
   Introduction / Rich Text Block
   ============================================ */
.intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-2xl) 0;
}

.intro__text {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  font-weight: 300;
  line-height: 1.8;
}

.intro__text strong {
  color: var(--color-heading);
  font-weight: 500;
}

/* ============================================
   Affiliate Disclosure
   ============================================ */
.footer__disclosure {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.disclosure__text {
  font-size: var(--text-xs);
  color: var(--color-stone-400);
  text-align: center;
  margin-bottom: 0;
  max-width: none;
  line-height: 1.6;
}

.disclosure__link {
  color: var(--color-stone-200);
  text-decoration: underline;
}

.disclosure__link:hover {
  color: #fff;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background-color: var(--color-stone-900);
  color: var(--color-stone-300);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

.footer__brand-name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-stone-100);
  margin-bottom: var(--space-md);
}

.footer__brand-desc {
  font-size: var(--text-sm);
  color: var(--color-stone-400);
  line-height: 1.7;
  max-width: 320px;
}

.footer__heading {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-stone-400);
  margin-bottom: var(--space-lg);
}

.footer__link {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-stone-300);
  text-decoration: none;
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-stone-100);
}

.footer__bottom {
  border-top: 1px solid var(--color-stone-700);
  padding-top: var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__copyright {
  font-size: var(--text-xs);
  color: var(--color-stone-500);
}

.footer__back-to-top {
  font-size: var(--text-xs);
  color: var(--color-stone-500);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__back-to-top:hover {
  color: var(--color-stone-200);
}

/* ============================================
   404 Page
   ============================================ */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl);
  background: linear-gradient(180deg, var(--color-stone-100) 0%, var(--color-stone-50) 100%);
}

.error-page__code {
  font-family: var(--font-heading);
  font-size: clamp(6rem, 10vw, 12rem);
  font-weight: 700;
  color: var(--color-stone-200);
  line-height: 1;
  margin-bottom: var(--space-md);
}

.error-page__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-md);
}

.error-page__desc {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.error-page__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-stone-50);
  background-color: var(--color-stone-800);
  padding: var(--space-md) var(--space-2xl);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.error-page__link:hover {
  background-color: var(--color-stone-700);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-stone-50);
}

/* ============================================
   Button Component
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: var(--space-md) var(--space-2xl);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn--primary {
  background-color: var(--color-stone-800);
  color: var(--color-stone-50);
}

.btn--primary:hover {
  background-color: var(--color-stone-700);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--color-stone-50);
}

.btn--outline {
  background-color: transparent;
  border: 1.5px solid var(--color-stone-400);
  color: var(--color-stone-700);
}

.btn--outline:hover {
  background-color: var(--color-stone-800);
  border-color: var(--color-stone-800);
  color: var(--color-stone-50);
  transform: translateY(-2px);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollPulse {

  0%,
  100% {
    opacity: 0.4;
    transform: scaleY(1);
  }

  50% {
    opacity: 1;
    transform: scaleY(1.2);
  }
}

/* Scroll reveal animation class */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal--delay-1 {
  transition-delay: 100ms;
}

.reveal--delay-2 {
  transition-delay: 200ms;
}

.reveal--delay-3 {
  transition-delay: 300ms;
}

.reveal--delay-4 {
  transition-delay: 400ms;
}

.reveal--delay-5 {
  transition-delay: 500ms;
}

.reveal--delay-6 {
  transition-delay: 600ms;
}

/* ============================================
   Article / Single Page (for Phase 2+)
   ============================================ */
.article-header {
  padding-top: calc(var(--nav-height) + var(--space-4xl));
  padding-bottom: var(--space-3xl);
  text-align: center;
  background-color: var(--color-bg-alt);
}

.article-header__breadcrumbs {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
}

.article-header__breadcrumbs a {
  color: var(--color-text-light);
  text-decoration: none;
}

.article-header__breadcrumbs a:hover {
  color: var(--color-text);
}

.article-body {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-xl);
}

.article-body h2 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-md);
}

.article-body h3 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.article-body p {
  margin-bottom: var(--space-lg);
}

.article-body ul,
.article-body ol {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-xl);
}

.article-body li {
  margin-bottom: var(--space-sm);
  list-style: disc;
  color: var(--color-text-secondary);
}

.article-body img {
  border-radius: var(--radius-md);
  margin: var(--space-2xl) 0;
}

/* ============================================
   Responsive Design
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .highlights-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }

  .seasons {
    grid-template-columns: repeat(2, 1fr);
  }

  .season-card {
    min-height: 320px;
  }
}

/* Intermediate Tablet Adjustments */
@media (max-width: 1100px) {
  .nav__inner {
    padding: 0 var(--space-lg);
  }

  .nav__links {
    gap: var(--space-lg);
  }

  .nav__logo {
    font-size: var(--text-base);
  }
}

/* Tablet / Mobile Menu Transition */
@media (max-width: 992px) {
  :root {
    --nav-height: 64px;
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  .container {
    padding: 0 var(--space-lg);
  }

  .nav__links {
    display: none;
  }

  .nav__cta:not(.nav__cta--mobile) {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .hero__content {
    padding: var(--space-lg);
    max-width: 700px;
  }

  .hero__title {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    margin-bottom: var(--space-md);
  }

  .hero__subtitle {
    font-size: var(--text-base);
    margin-bottom: var(--space-lg);
  }

  .hero__pretitle {
    margin-bottom: var(--space-md);
  }

  .pillars-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .pillar-card {
    padding: var(--space-xl);
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    text-align: left;
  }

  .pillar-card__icon {
    font-size: 2rem;
    margin-bottom: 0;
    flex-shrink: 0;
  }

  .pillar-card__arrow {
    margin-top: 0;
    margin-left: auto;
    flex-shrink: 0;
  }

  .pillar-card__body {
    flex: 1;
  }

  .seasons {
    grid-template-columns: 1fr;
  }

  .season-card {
    min-height: 200px;
    padding: var(--space-xl) var(--space-lg);
  }

  .season-card__desc {
    max-height: none;
    opacity: 1;
  }

  .highlights-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

/* Mobile portrait */
@media (max-width: 480px) {
  .hero__title {
    font-size: clamp(2rem, 8vw, 2.8rem);
  }

  .hero__subtitle {
    font-size: var(--text-sm);
  }

  .hero__content {
    padding: var(--space-md);
  }

  .hero__cta {
    font-size: var(--text-sm);
    padding: var(--space-sm) var(--space-lg);
  }
}

/* ============================================
   Article & Guide Components
   ============================================ */

.article-header {
  padding-top: calc(var(--nav-height) + var(--space-4xl));
  padding-bottom: var(--space-lg);
  background-color: var(--color-bg);
  text-align: center;
}

.article-header--hero {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  padding-bottom: var(--space-3xl);
}

.article-header__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.4) 100%);
  z-index: 1;
}

.article-header--hero .article-header__breadcrumbs,
.article-header--hero .article-header__breadcrumbs a {
  color: rgba(255, 255, 255, 0.8);
}

.article-header--hero .article-header__breadcrumbs a:hover {
  color: #fff;
}

.article-header__breadcrumbs {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.article-header__breadcrumbs a {
  color: var(--color-text-light);
}

.article-header__breadcrumbs a:hover {
  color: var(--color-accent);
}

.article-body {
  max-width: var(--container-narrow);
  margin: 0 auto var(--space-5xl);
}

.article-body>.section.reveal {
  padding: var(--space-md) 0;
}

.article-body>.reveal p:last-child {
  margin-bottom: 0;
}

.article-hero {
  position: relative;
  width: 100%;
  height: clamp(350px, 55vh, 700px);
  margin-top: var(--space-sm);
  margin-bottom: var(--space-lg);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.article-hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center bottom;
  display: block;
  border-radius: inherit;
  transition: transform 10s ease;
}

.article-hero:hover img {
  transform: scale(1.12);
}

.article-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(46, 38, 32, 0.4));
  pointer-events: none;
}

.key-takeaway {
  background-color: var(--color-stone-100);
  padding: var(--space-xl);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  border-left: 4px solid var(--color-sage);
}

.key-takeaway h3 {
  margin-top: 0;
  font-size: var(--text-lg);
  color: var(--color-stone-800);
  margin-bottom: var(--space-sm);
}

.key-takeaway p {
  margin-bottom: 0;
  font-size: var(--text-base);
}

/* Data Tables */
.data-table-wrapper {
  overflow-x: auto;
  margin: var(--space-xl) 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  background-color: #fff;
}

.data-table th {
  background-color: var(--color-stone-50);
  padding: var(--space-md);
  text-align: left;
  font-weight: 600;
  color: var(--color-stone-800);
  border-bottom: 2px solid var(--color-border);
}

.data-table td {
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table strong {
  color: var(--color-sage);
}

@media (max-width: 768px) {
  .article-header {
    padding-top: calc(var(--nav-height) + var(--space-2xl));
  }
}