body {
  font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;

  /* Green palette */
  --green-100: #e8f0e4;
  --green-200: #c5dabb;
  --green-300: #8fbc7e;
  --green-400: #5a9e4a;
  --green-500: #3a7d2a;
  --green-600: #265c1a;

  /* Bark / earth tones */
  --bark-100: #f2ece6;
  --bark-200: #e0d5c8;
  --bark-300: #c4b29e;
  --bark-400: #9e8a72;
  --bark-500: #6e5c46;
  --bark-600: #4a3c2e;

  /* Page */
  --page-bg: #f7f5f2;

  /* Aliases for existing components (home, login, seed-tree) */
  --border-color: #ddd;
  --gray-100: #fafafa;
  --gray-500: #666;
  --gray-700: #333;
  --primary-100: var(--green-100);
  --primary-200: var(--green-200);
  --primary-400: var(--green-400);
  --primary-500: var(--green-500);
  --primary-600: var(--green-600);
  --error-500: #c53030;
  --error-100: #fff5f5;

  background-color: var(--page-bg);
  color: var(--gray-700);
}

/*
  Josh's Custom CSS Reset
  https://www.joshwcomeau.com/css/custom-css-reset/
*/
*,
*::before,
*::after {
  box-sizing: border-box;
}
* {
  margin: 0;
}
body {
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}
input,
button,
textarea,
select {
  font: inherit;
}
p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}
#root,
#__next {
  isolation: isolate;
}

/*
  Common components
*/
button,
.button {
  display: inline-block;
  border: 0;
  background-color: var(--primary-500);
  border-radius: 6px;
  color: #fff;
  padding: 6px 16px;
  cursor: pointer;
  text-decoration: none;
  font-family: 'Source Serif 4', Georgia, serif;
  font-weight: 600;
}
button:hover,
.button:hover {
  background: var(--primary-400);
}

/*
  Custom components
*/
.error {
  background-color: var(--error-100);
  color: var(--error-500);
  text-align: center;
  padding: 1rem;
  display: none;
}
.error.visible {
  display: block;
}

#header {
  background-color: #fff;
  text-align: center;
  padding: 0.5rem 0 1.5rem;
}

#header h1 {
  font-family: 'Newsreader', Georgia, serif;
  font-size: 2.8rem;
  color: var(--primary-600);
  font-weight: 400;
  font-style: italic;
}

#header a {
  color: var(--primary-500);
}

.container {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0 auto;
  max-width: 600px;
  padding: 20px;
}

.card {
  border-radius: 6px;
  padding: 10px 16px;
  background-color: #fff;
}
.card > :first-child {
  margin-top: 0;
}
.card > :last-child {
  margin-bottom: 0;
}

.session-form {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.login-form {
  display: flex;
  flex-direction: row;
  gap: 6px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px 16px;
  background-color: #fff;
}

.login-form input {
  flex: 1;
  border: 0;
}

.signup-cta {
  text-align: center;
  width: 100%;
  display: block;
  margin-top: 1rem;
}

/* Tree form */
.tree-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}

.tree-form label {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.9rem;
  color: var(--gray-500);
}

.tree-form input,
.tree-form textarea {
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 6px 10px;
  font-size: 1rem;
  color: var(--gray-700);
}

.tree-form-row {
  display: flex;
  gap: 10px;
}

.tree-form-row label {
  flex: 1;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--gray-500);
  font-style: italic;
  margin-top: -4px;
}

/* Tree cards */
.section-title {
  margin-top: 16px;
  margin-bottom: 4px;
  color: var(--gray-700);
  font-family: 'Newsreader', Georgia, serif;
  font-weight: 400;
}

.empty-state {
  color: var(--gray-500);
  font-style: italic;
  padding: 10px 0;
}

.seed-cta {
  display: block;
  text-align: center;
  background-color: var(--primary-500);
  color: #fff;
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 8px;
}

.seed-cta:hover {
  background-color: var(--primary-400);
}

.tree-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 8px;
}

.tree-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: #fff;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.tree-card:hover {
  border-color: var(--primary-400);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.tree-card-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.tree-card-placeholder {
  background-color: var(--gray-100);
  color: var(--gray-500);
  text-align: center;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-style: italic;
  font-size: 0.9rem;
}

.tree-card-body {
  padding: 8px 10px 10px;
}

.tree-name {
  color: var(--gray-700);
  font-size: 0.95rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tree-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}

.tree-author {
  color: var(--gray-500);
  font-size: 0.75rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.tree-rings-badge {
  background-color: var(--primary-100);
  color: var(--primary-600);
  font-size: 0.7rem;
  padding: 1px 6px;
  border-radius: 10px;
  font-weight: 600;
}

@media (max-width: 480px) {
  .tree-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
}

/* ============================================
   Tree Detail Page — 4-zone layout
   ============================================ */

.tree-detail-header {
  background-color: #fff;
  text-align: center;
  padding: 0.75rem 0;
}

.tree-detail-header h1 {
  font-family: 'Newsreader', Georgia, serif;
  font-size: 1.5rem;
  color: var(--primary-600);
  font-weight: 400;
  font-style: italic;
}

.tree-detail-header h1 a {
  color: inherit;
  text-decoration: none;
}

.tree-detail-header h1 a:hover {
  text-decoration: underline;
}

/* Zone 1: Hero */
.tree-hero {
  position: relative;
  width: 100%;
  max-height: 70vh;
  overflow: hidden;
  background-color: var(--green-600);
}

.tree-hero-bg {
  display: none;
}

.tree-hero-img {
  width: 100%;
  height: 100%;
  max-height: 70vh;
  object-fit: cover;
  display: block;
}

/* Portrait hero: blurred fill behind centered image */
.tree-hero--portrait {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 70vh;
}

.tree-hero--portrait .tree-hero-bg {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(24px) saturate(0.8) brightness(0.7);
  transform: scale(1.1);
}

.tree-hero--portrait .tree-hero-img {
  position: relative;
  width: auto;
  max-width: 55%;
  height: 100%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.tree-hero-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 3rem 1.5rem 1.5rem;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.65));
}

.tree-hero-name {
  font-family: 'Newsreader', Georgia, serif;
  color: #fff;
  font-size: 2.4rem;
  font-weight: 400;
  line-height: 1.15;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
  max-width: 600px;
  margin: 0 auto;
}

/* No-image hero fallback */
.tree-hero--no-image {
  padding: 3rem 1.5rem 2rem;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  min-height: 180px;
}

.tree-hero--no-image .tree-hero-name {
  text-align: center;
}

/* Zone 2: Presence info */
.tree-presence {
  max-width: 600px;
  margin: 0 auto;
  padding: 1.5rem 20px 1rem;
}

.tree-presence-description {
  font-size: 1.1rem;
  line-height: 1.65;
  color: var(--bark-600);
}

.tree-presence-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--bark-200);
}

.tree-meta-item {
  font-family: 'DM Mono', 'Courier New', monospace;
  font-size: 0.78rem;
  color: var(--bark-400);
  letter-spacing: 0.02em;
}

.tree-meta-item a {
  color: var(--green-500);
  text-decoration: none;
}

.tree-meta-item a:hover {
  text-decoration: underline;
}

/* Map */
.tree-map {
  width: 100%;
  height: 200px;
  border-radius: 8px;
  border: 1px solid var(--bark-200);
  margin-top: 1rem;
  overflow: hidden;
}

.tree-map .leaflet-tile-pane,
.seed-map .leaflet-tile-pane {
  filter: saturate(0.4) brightness(1.05);
}

/* Seed form map */
.seed-map .leaflet-control-geocoder {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 0.9rem;
}

.seed-map {
  width: 100%;
  height: 240px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  cursor: crosshair;
  transition: opacity 0.2s;
}

.tree-map-links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 0.5rem;
  font-family: 'DM Mono', 'Courier New', monospace;
  font-size: 0.75rem;
}

.tree-map-links a {
  color: var(--green-500);
  text-decoration: none;
}

.tree-map-links a:hover {
  text-decoration: underline;
}

.tree-map-links-sep {
  color: var(--bark-300);
}

/* Zone 3: Inscription form */
.inscription-zone {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 20px;
}

.inscription-form-wrapper {
  border: 2px dashed var(--bark-300);
  border-radius: 8px;
  padding: 1.25rem 1.25rem 1rem;
  background-color: rgba(255, 255, 255, 0.5);
}

.inscription-form-wrapper h3 {
  font-family: 'Newsreader', Georgia, serif;
  font-weight: 400;
  font-size: 1.15rem;
  color: var(--bark-500);
  margin-bottom: 0.75rem;
}

.inscription-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.inscription-form label {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.9rem;
  color: var(--gray-500);
}

.inscription-form textarea {
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 6px 10px;
  font-size: 1rem;
  color: var(--gray-700);
}

.inscription-login-prompt {
  text-align: center;
  padding: 0.5rem 0;
  color: var(--bark-400);
  font-style: italic;
}

.inscription-login-prompt a {
  color: var(--green-500);
  font-style: normal;
  font-weight: 600;
}

/* Zone 4: Memory rings */
.rings-section {
  max-width: 600px;
  margin: 0 auto;
  padding: 1.5rem 20px 3rem;
}

.rings-header {
  font-family: 'Newsreader', Georgia, serif;
  font-weight: 400;
  font-size: 1.3rem;
  color: var(--bark-600);
  margin-bottom: 1rem;
}

.rings-header span {
  font-family: 'DM Mono', 'Courier New', monospace;
  font-size: 0.85rem;
  color: var(--bark-400);
  font-weight: 400;
}

.rings-trunk {
  position: relative;
  padding-left: 52px;
}

.rings-trunk::before {
  content: '';
  position: absolute;
  left: 33px;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--green-200);
  border-radius: 2px;
}

/* Individual ring marker */
.ring-marker {
  position: relative;
  padding: 0 0 1.75rem 20px;
}

.ring-marker:last-child {
  padding-bottom: 0;
}

/* Concentric circle marker */
.ring-marker::before {
  content: '';
  position: absolute;
  left: -32px;
  top: 4px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid var(--bark-300);
  background-color: var(--page-bg);
}

.ring-marker::after {
  content: '';
  position: absolute;
  left: -23px;
  top: 13px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--green-500);
}

/* Newest ring: larger with glow */
.ring--newest::before {
  width: 32px;
  height: 32px;
  left: -35px;
  top: 1px;
  border-color: var(--green-400);
  box-shadow: 0 0 8px rgba(58, 125, 42, 0.25);
}

.ring--newest::after {
  width: 10px;
  height: 10px;
  left: -24px;
  top: 12px;
  background-color: var(--green-400);
}

/* Temporal depth */
.ring--old {
  opacity: 0.88;
}

.ring--old .ring-image {
  filter: saturate(0.85);
}

.ring--mid {
  opacity: 0.94;
}

.ring--recent {
  opacity: 1;
}

/* Ring content */
.ring-image {
  width: 100%;
  max-height: 360px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 6px;
  transition: width 0.15s ease, max-height 0.15s ease;
}

.ring-image--portrait {
  width: 60%;
  max-height: 420px;
  margin-left: auto;
  margin-right: auto;
  border-radius: 4px;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.1);
}

.ring-image--landscape {
  max-height: 360px;
}

.ring-text {
  color: var(--bark-600);
  font-size: 1rem;
  line-height: 1.55;
}

/* Text-only inscription accent */
.ring-text-only .ring-text {
  border-left: 3px solid var(--green-200);
  padding-left: 12px;
  font-style: italic;
}

.ring-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  font-size: 0.8rem;
}

.ring-author {
  color: var(--green-500);
  text-decoration: none;
}

.ring-author:hover {
  text-decoration: underline;
}

.ring-you {
  background-color: var(--green-100);
  color: var(--green-600);
  padding: 0 6px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 600;
}

.ring-date {
  font-family: 'DM Mono', 'Courier New', monospace;
  font-size: 0.75rem;
  color: var(--bark-400);
}

.ring-photo-date {
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 0.8rem;
  color: var(--bark-400);
  margin-top: -2px;
  margin-bottom: 4px;
  letter-spacing: 0.01em;
}

.ring-photo-date::before {
  content: '\1F4F7\00a0';
  font-style: normal;
  font-size: 0.7rem;
}

/* Empty state trunk stub */
.rings-empty {
  position: relative;
  padding-left: 52px;
  min-height: 60px;
}

.rings-empty::before {
  content: '';
  position: absolute;
  left: 33px;
  top: 0;
  height: 60px;
  width: 3px;
  background-color: var(--green-200);
  border-radius: 2px;
}

.rings-empty-marker {
  position: relative;
  padding-left: 20px;
  padding-top: 14px;
}

.rings-empty-marker::before {
  content: '';
  position: absolute;
  left: -32px;
  top: 18px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px dashed var(--bark-300);
  background-color: var(--page-bg);
}

.rings-empty-text {
  color: var(--bark-400);
  font-style: italic;
  font-size: 0.95rem;
}

/* Collapsible older rings */
.rings-older-toggle {
  margin-bottom: 1rem;
}

.rings-older-toggle summary {
  font-family: 'DM Mono', 'Courier New', monospace;
  font-size: 0.8rem;
  color: var(--bark-400);
  cursor: pointer;
  padding: 6px 0;
  list-style: none;
}

.rings-older-toggle summary::-webkit-details-marker {
  display: none;
}

.rings-older-toggle summary::before {
  content: '\25b6\00a0';
  font-size: 0.7rem;
}

.rings-older-toggle[open] summary::before {
  content: '\25bc\00a0';
}

/* Image preview on inscription form */
#inscription-preview {
  display: none;
  width: 100%;
  max-height: 300px;
  object-fit: cover;
  border-radius: 6px;
  margin-top: 4px;
}

/* Image preview on seed form */
#image-preview {
  display: none;
  width: 100%;
  max-height: 300px;
  object-fit: cover;
  border-radius: 6px;
  margin-top: 4px;
}

/* GPS feedback */
.gps-feedback {
  font-size: 0.85rem;
  padding: 4px 0;
}

.gps-found {
  color: var(--primary-500);
  font-weight: 600;
}

.gps-not-found {
  color: var(--gray-500);
  font-style: italic;
}

/* Checkbox label (e.g. hide-location) */
.checkbox-label {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--gray-500);
}

/* Datetime feedback */
.datetime-feedback {
  font-size: 0.85rem;
  padding: 4px 0;
  color: var(--primary-500);
  font-weight: 600;
}

/* Delete buttons */
.delete-form {
  display: inline;
}

.delete-btn {
  background: none;
  border: none;
  color: var(--bark-400);
  font-size: 0.75rem;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
  font-weight: 400;
}

.delete-btn:hover {
  color: var(--error-500);
  background: none;
}

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

@media (max-width: 480px) {
  .tree-hero--portrait .tree-hero-img {
    max-width: 75%;
  }

  .tree-hero-name {
    font-size: 1.8rem;
  }

  .tree-presence-meta {
    flex-direction: column;
    gap: 0.4rem;
  }

  .rings-trunk {
    padding-left: 44px;
  }

  .rings-trunk::before {
    left: 25px;
  }

  .ring-marker::before {
    left: -32px;
  }

  .ring-marker::after {
    left: -23px;
  }

  .ring--newest::before {
    left: -35px;
  }

  .ring--newest::after {
    left: -24px;
  }

  .rings-empty {
    padding-left: 44px;
  }

  .rings-empty::before {
    left: 25px;
  }

  .rings-empty-marker::before {
    left: -32px;
  }

  .ring-image--portrait {
    width: 75%;
  }
}