/* ═══════════════════════════════════════════════════════
   NEW FOREST DAY TRIP — EDITORIAL DESIGN SYSTEM
   Aesthetic: Organic editorial — warm, earthy, refined
   Fonts: Fraunces (display) + Plus Jakarta Sans (body)
   ═══════════════════════════════════════════════════════ */

/* ── TOKENS ── */
:root {
  /* Palette – warm forest tones in OKLCH */
  --clr-earth:      oklch(22% 0.02 70);
  --clr-earth-mid:  oklch(35% 0.02 70);
  --clr-bark:       oklch(42% 0.04 55);
  --clr-moss:       oklch(45% 0.08 145);
  --clr-moss-light: oklch(88% 0.04 145);
  --clr-fern:       oklch(55% 0.12 145);
  --clr-canopy:     oklch(38% 0.08 145);
  --clr-sand:       oklch(93% 0.02 80);
  --clr-cream:      oklch(96% 0.01 80);
  --clr-parchment:  oklch(94% 0.015 70);
  --clr-gold:       oklch(72% 0.14 75);
  --clr-gold-dim:   oklch(60% 0.10 75);
  --clr-rust:       oklch(55% 0.12 40);

  /* Semantic */
  --text-primary:   var(--clr-earth);
  --text-secondary: var(--clr-bark);
  --text-muted:     oklch(55% 0.02 70);
  --bg-page:        var(--clr-cream);
  --bg-section:     var(--clr-parchment);
  --accent:         var(--clr-fern);
  --accent-dark:    var(--clr-canopy);

  /* Typography */
  --ff-display: 'Fraunces', 'Georgia', serif;
  --ff-body:    'Plus Jakarta Sans', 'Segoe UI', system-ui, sans-serif;

  --fs-hero:    clamp(3rem, 6vw + 1rem, 7rem);
  --fs-h2:      clamp(1.8rem, 3vw + 0.5rem, 3.2rem);
  --fs-h3:      clamp(1.2rem, 1.5vw + 0.5rem, 1.6rem);
  --fs-body:    clamp(1rem, 0.5vw + 0.85rem, 1.15rem);
  --fs-small:   clamp(0.8rem, 0.3vw + 0.7rem, 0.9rem);
  --fs-caption: 0.78rem;

  --lh-body: 1.65;
  --lh-heading: 1.1;

  /* Space – 4pt base */
  --sp-4:  0.25rem;
  --sp-8:  0.5rem;
  --sp-12: 0.75rem;
  --sp-16: 1rem;
  --sp-24: 1.5rem;
  --sp-32: 2rem;
  --sp-48: 3rem;
  --sp-64: 4rem;
  --sp-96: 6rem;
  --sp-128: 8rem;

  /* Motion */
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-out-expo:  cubic-bezier(0.16, 1, 0.3, 1);
  --duration-enter: 600ms;
  --duration-fast:  200ms;

  /* Layout */
  --max-prose: 62ch;
  --max-content: 1100px;
  --timeline-width: 2px;
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--ff-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-primary);
  background: var(--bg-page);
  overflow-x: hidden;
}

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

a {
  color: var(--accent-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--duration-fast) var(--ease-out-quart);
}
a:hover { color: var(--clr-rust); }

ul { list-style: none; }

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero__image-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  filter: brightness(0.65) saturate(1.15);
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: var(--sp-48) var(--sp-32) var(--sp-64);
  max-width: 800px;
}

.hero__kicker {
  font-family: var(--ff-body);
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: oklch(85% 0.04 80);
  margin-bottom: var(--sp-16);
  opacity: 0;
  transform: translateY(20px);
  animation: heroReveal 800ms var(--ease-out-expo) 200ms forwards;
}

.hero__title {
  font-family: var(--ff-display);
  font-size: var(--fs-hero);
  font-weight: 300;
  line-height: var(--lh-heading);
  color: var(--clr-cream);
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-24);
  opacity: 0;
  transform: translateY(30px);
  animation: heroReveal 900ms var(--ease-out-expo) 400ms forwards;
}

.hero__title em {
  font-style: italic;
  font-weight: 400;
  color: var(--clr-gold);
}

.hero__subtitle {
  font-family: var(--ff-body);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: oklch(82% 0.02 70);
  max-width: 48ch;
  margin-bottom: var(--sp-32);
  opacity: 0;
  transform: translateY(20px);
  animation: heroReveal 800ms var(--ease-out-expo) 700ms forwards;
}

.hero__cta {
  display: inline-block;
  font-family: var(--ff-body);
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--clr-earth);
  background: var(--clr-gold);
  padding: var(--sp-12) var(--sp-32);
  border-radius: 2px;
  transition: transform var(--duration-fast) var(--ease-out-quart),
              background var(--duration-fast) var(--ease-out-quart);
  opacity: 0;
  transform: translateY(20px);
  animation: heroReveal 800ms var(--ease-out-expo) 950ms forwards;
}

.hero__cta:hover {
  background: var(--clr-gold-dim);
  color: var(--clr-cream);
  transform: translateY(-2px);
}

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

/* ── OVERVIEW STRIP ── */
.overview {
  background: var(--clr-earth);
  padding: var(--sp-48) var(--sp-32);
}

.overview__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--sp-32);
  max-width: var(--max-content);
  margin: 0 auto;
  text-align: left;
}

.overview__stat {
  opacity: 0;
  transform: translateY(16px);
}

.overview__stat.is-visible {
  animation: fadeUp var(--duration-enter) var(--ease-out-expo) calc(var(--i, 0) * 80ms) forwards;
}

.overview__number {
  display: block;
  font-family: var(--ff-display);
  font-size: clamp(1.8rem, 2.5vw + 0.5rem, 2.8rem);
  font-weight: 300;
  color: var(--clr-gold);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.overview__label {
  display: block;
  font-size: var(--fs-caption);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: oklch(65% 0.02 70);
  margin-top: var(--sp-4);
}

/* ── CHAPTER (TIMELINE ITINERARY) ── */
.chapter {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 0 var(--sp-32);
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--sp-64) var(--sp-32) 0;
  position: relative;
}

.chapter__marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-8);
  position: relative;
  padding-top: var(--sp-4);
}

.chapter__marker::after {
  content: '';
  position: absolute;
  top: calc(var(--sp-4) + 1.4rem + var(--sp-8) + 14px);
  left: 50%;
  transform: translateX(-50%);
  width: var(--timeline-width);
  height: calc(100% - 1.4rem - var(--sp-8) - 14px + var(--sp-64));
  background: oklch(85% 0.02 70);
}

.chapter:last-of-type .chapter__marker::after {
  display: none;
}

.chapter__time {
  font-family: var(--ff-body);
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  white-space: nowrap;
}

.chapter__dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: var(--timeline-width) solid var(--clr-moss);
  background: var(--bg-page);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.chapter__body {
  padding-bottom: var(--sp-64);
  opacity: 0;
  transform: translateY(24px);
}

.chapter__body.is-visible {
  animation: fadeUp var(--duration-enter) var(--ease-out-expo) forwards;
}

.chapter__label {
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-moss);
  margin-bottom: var(--sp-8);
}

.chapter__heading {
  font-family: var(--ff-display);
  font-size: var(--fs-h2);
  font-weight: 400;
  line-height: var(--lh-heading);
  color: var(--text-primary);
  letter-spacing: -0.015em;
  margin-bottom: var(--sp-24);
}

.chapter__figure {
  margin: var(--sp-32) 0;
  overflow: hidden;
  border-radius: 3px;
}

.chapter__figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 600ms var(--ease-out-quart);
}

.chapter__figure:hover img {
  transform: scale(1.03);
}

.chapter__figure--wide {
  margin-left: calc(-1 * var(--sp-32));
  margin-right: calc(-1 * var(--sp-32));
}

.chapter__prose {
  max-width: var(--max-prose);
}

.chapter__prose p {
  margin-bottom: var(--sp-16);
  color: var(--text-secondary);
}

.chapter__prose p:last-child {
  margin-bottom: 0;
}

.chapter__prose strong {
  font-weight: 600;
  color: var(--text-primary);
}

.chapter__prose em {
  font-style: italic;
}

/* Route metrics */
.chapter__route-details {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-24) var(--sp-48);
  margin-top: var(--sp-32);
  padding-top: var(--sp-24);
  border-top: 1px solid oklch(85% 0.02 70);
}

.route-metric__value {
  display: block;
  font-family: var(--ff-display);
  font-size: clamp(1.3rem, 1.5vw + 0.3rem, 1.6rem);
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1.2;
}

.route-metric__label {
  display: block;
  font-size: var(--fs-caption);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: var(--sp-4);
}

/* Details / expand */
.chapter__details {
  margin-top: var(--sp-32);
}

details {
  border-top: 1px solid oklch(85% 0.02 70);
  padding-top: var(--sp-16);
}

summary {
  font-family: var(--ff-body);
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--clr-moss);
  cursor: pointer;
  padding: var(--sp-8) 0;
  list-style: none;
  user-select: none;
  display: flex;
  align-items: center;
  gap: var(--sp-8);
}

summary::-webkit-details-marker { display: none; }

summary::before {
  content: '+';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--clr-moss);
  border: 1px solid var(--clr-moss);
  border-radius: 50%;
  flex-shrink: 0;
  transition: transform var(--duration-fast) var(--ease-out-quart),
              background var(--duration-fast) var(--ease-out-quart);
}

details[open] summary::before {
  content: '−';
  background: var(--clr-moss);
  color: var(--clr-cream);
  transform: rotate(90deg);
}

summary:hover::before {
  background: var(--clr-moss-light);
}

details ul {
  padding: var(--sp-16) 0 var(--sp-8) var(--sp-32);
}

details li {
  position: relative;
  padding-left: var(--sp-16);
  margin-bottom: var(--sp-12);
  font-size: var(--fs-small);
  color: var(--text-secondary);
  line-height: 1.6;
}

details li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--clr-moss);
  opacity: 0.5;
}

details li strong {
  font-weight: 600;
  color: var(--text-primary);
}

/* ── ROUTE MAP ── */
.route-map {
  padding: var(--sp-96) var(--sp-32) var(--sp-64);
  max-width: var(--max-content);
  margin: 0 auto;
}

.route-map__header {
  margin-bottom: var(--sp-32);
}

.route-map__label {
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-moss);
  margin-bottom: var(--sp-8);
}

.route-map__heading {
  font-family: var(--ff-display);
  font-size: var(--fs-h2);
  font-weight: 400;
  line-height: var(--lh-heading);
  color: var(--text-primary);
  letter-spacing: -0.015em;
}

.route-map__container {
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 4px 24px oklch(22% 0.02 70 / 0.12);
  border: 1px solid oklch(85% 0.02 70);
}

#map {
  width: 100%;
  height: 480px;
}

.route-map__legend {
  display: flex;
  gap: var(--sp-24);
  margin-top: var(--sp-16);
  padding-top: var(--sp-12);
}

.route-map__legend-item {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
  font-size: var(--fs-caption);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.route-map__legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  flex-shrink: 0;
}

.route-map__legend-line {
  width: 24px;
  height: 0;
  border-top: 3px dashed var(--clr-moss);
  opacity: 0.7;
  flex-shrink: 0;
}

/* Leaflet overrides for consistent typography */
.leaflet-popup-content-wrapper {
  border-radius: 4px !important;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15) !important;
}

.leaflet-popup-content {
  margin: 12px 14px !important;
  line-height: 1.5 !important;
}

.route-marker {
  background: transparent !important;
  border: none !important;
}

/* Map responsive */
@media (max-width: 768px) {
  .route-map {
    padding: var(--sp-64) var(--sp-16) var(--sp-48);
  }

  #map {
    height: 360px;
  }
}

@media (max-width: 480px) {
  #map {
    height: 280px;
  }

  .route-map {
    padding: var(--sp-48) var(--sp-12) var(--sp-32);
  }
}

/* ── ESSENTIALS ── */
.essentials {
  background: var(--clr-earth);
  padding: var(--sp-96) var(--sp-32);
}

.essentials__heading {
  font-family: var(--ff-display);
  font-size: var(--fs-h2);
  font-weight: 300;
  color: var(--clr-gold);
  text-align: left;
  max-width: var(--max-content);
  margin: 0 auto var(--sp-48);
  letter-spacing: -0.02em;
}

.essentials__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-48);
  max-width: var(--max-content);
  margin: 0 auto;
}

.essential {
  opacity: 0;
  transform: translateY(20px);
}

.essential.is-visible {
  animation: fadeUp var(--duration-enter) var(--ease-out-expo) calc(var(--i, 0) * 100ms) forwards;
}

.essential__title {
  font-family: var(--ff-display);
  font-size: var(--fs-h3);
  font-weight: 400;
  color: var(--clr-cream);
  margin-bottom: var(--sp-24);
  letter-spacing: -0.01em;
}

.essential__list {
  padding: 0;
}

.essential__list li {
  font-size: var(--fs-small);
  color: oklch(72% 0.02 70);
  line-height: 1.7;
  padding: var(--sp-8) 0;
  border-bottom: 1px solid oklch(30% 0.02 70);
  position: relative;
  padding-left: var(--sp-16);
}

.essential__list li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--clr-gold);
  font-weight: 600;
}

.essential__list a {
  color: var(--clr-gold);
  text-decoration-color: oklch(60% 0.08 75 / 0.4);
}

.essential__list a:hover {
  color: var(--clr-cream);
}

/* ── FOOTER ── */
.footer {
  padding: var(--sp-48) var(--sp-32);
  text-align: center;
  background: oklch(15% 0.015 70);
}

.footer__text {
  font-family: var(--ff-display);
  font-size: var(--fs-small);
  font-weight: 300;
  font-style: italic;
  color: oklch(55% 0.02 70);
  letter-spacing: 0.02em;
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── REDUCED MOTION ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .hero__kicker,
  .hero__title,
  .hero__subtitle,
  .hero__cta,
  .overview__stat,
  .chapter__body,
  .essential {
    opacity: 1;
    transform: none;
  }
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .chapter {
    grid-template-columns: 60px 1fr;
    gap: 0 var(--sp-16);
    padding: var(--sp-48) var(--sp-16) 0;
  }

  .chapter__marker::after {
    top: calc(var(--sp-4) + 1.2rem + var(--sp-8) + 12px);
    height: calc(100% - 1.2rem - var(--sp-8) - 12px + var(--sp-48));
  }

  .chapter__dot {
    width: 12px;
    height: 12px;
  }

  .chapter__figure--wide {
    margin-left: calc(-1 * var(--sp-16));
    margin-right: calc(-1 * var(--sp-16));
  }

  .chapter__body {
    padding-bottom: var(--sp-48);
  }

  .hero__content {
    padding: var(--sp-32) var(--sp-24) var(--sp-48);
  }

  .overview { padding: var(--sp-32) var(--sp-24); }
  .overview__grid { gap: var(--sp-24); }

  .essentials { padding: var(--sp-64) var(--sp-24); }
}

@media (max-width: 480px) {
  .chapter {
    grid-template-columns: 44px 1fr;
    gap: 0 var(--sp-12);
    padding: var(--sp-32) var(--sp-12) 0;
  }

  .chapter__time {
    font-size: 0.7rem;
  }

  .chapter__route-details {
    gap: var(--sp-16) var(--sp-32);
  }
}

/* ── FOCUS ── */
a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ── SELECTION ── */
::selection {
  background: oklch(75% 0.10 145 / 0.3);
  color: var(--text-primary);
}