:root {
  --bg: #faf6ef;
  --ink: #2b2418;
  --ink-soft: #6b5e4a;
  --accent: #8b5a2b;
  --accent-2: #c97b4a;
  --line: #d8c8a8;
  --danger: #a22;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
button { font-family: inherit; cursor: pointer; }

.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-card {
  background: white;
  border-radius: 12px;
  padding: 40px 32px;
  max-width: 380px;
  width: 100%;
  text-align: center;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}
.logo { font-size: 56px; margin-bottom: 8px; }
.login-card h1 { margin: 0 0 6px; font-size: 36px; color: var(--accent); letter-spacing: 1px; font-weight: 400; }
.subtitle { margin: 0 0 32px; font-style: italic; color: var(--ink-soft); font-size: 15px; }
.login-card input {
  width: 100%;
  padding: 12px 16px;
  font-size: 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  margin-bottom: 16px;
  font-family: inherit;
}
.login-card button {
  width: 100%;
  padding: 14px;
  background: var(--accent);
  color: white;
  border: 0;
  border-radius: 6px;
  font-size: 16px;
  font-weight: bold;
}
.login-card button:hover { background: var(--accent-2); }
.hint { margin-top: 24px; font-size: 13px; color: var(--ink-soft); font-style: italic; }
.error { color: var(--danger); margin-top: 12px; min-height: 20px; font-size: 14px; }

header {
  text-align: center;
  padding: 24px 16px 16px;
  background: linear-gradient(180deg, white, var(--bg));
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
header h1 { margin: 0; font-size: 32px; color: var(--accent); font-weight: 400; letter-spacing: 1px; }
header .subtitle { margin: 4px 0 16px; font-style: italic; color: var(--ink-soft); font-size: 14px; }
nav button {
  margin: 4px;
  padding: 10px 20px;
  border: 0;
  border-radius: 6px;
  font-size: 14px;
}
#upload-btn { background: var(--accent); color: white; }
#upload-btn:hover { background: var(--accent-2); }
#logout-btn { background: transparent; color: var(--ink-soft); border: 1px solid var(--line); }

main#gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  padding: 20px;
  max-width: 1200px;
  margin: 0 auto;
}
.empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-soft);
  font-style: italic;
}

.photo-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.photo-card:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,0.12); }
.photo-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
  background: var(--line);
}
.photo-meta { padding: 10px 12px 12px; }
.uploader { margin: 0 0 4px; font-weight: bold; font-size: 14px; color: var(--accent); }
.caption { margin: 0; font-size: 13px; color: var(--ink-soft); font-style: italic; line-height: 1.3; }

dialog {
  border: 0;
  border-radius: 12px;
  padding: 0;
  max-width: 90vw;
  max-height: 90vh;
  background: white;
  overflow: hidden;
}
dialog::backdrop { background: rgba(0,0,0,0.75); }
.close-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0,0,0,0.6);
  color: white;
  border: 0;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  font-size: 22px;
  z-index: 10;
}

#photo-dialog {
  max-width: 800px;
  width: 90vw;
  background: black;
  color: white;
}
#full-photo {
  width: 100%;
  max-height: 75vh;
  object-fit: contain;
  display: block;
  background: black;
}
.photo-info {
  padding: 16px 20px;
  background: white;
  color: var(--ink);
}
.photo-info p { margin: 4px 0; }
#photo-uploader { font-weight: bold; color: var(--accent); }
#photo-caption { font-style: italic; color: var(--ink-soft); }
#photo-date { font-size: 12px; color: var(--ink-soft); }
#delete-photo {
  margin-top: 12px;
  background: var(--danger);
  color: white;
  border: 0;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
}

#upload-dialog {
  max-width: 480px;
  width: 90vw;
}
#upload-form { padding: 24px; }
#upload-dialog h2 { margin: 0 0 20px; color: var(--accent); font-weight: 400; }
#upload-dialog label {
  display: block;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 6px;
}
#upload-dialog input[type="text"] {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  margin-bottom: 16px;
  font-family: inherit;
  font-size: 15px;
}
#upload-dialog input[type="file"] {
  margin-bottom: 12px;
  font-family: inherit;
}
.upload-preview { margin-bottom: 16px; text-align: center; }
.upload-preview img {
  max-width: 100%;
  max-height: 220px;
  border-radius: 6px;
}
.actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}
.actions button {
  padding: 10px 18px;
  border: 0;
  border-radius: 6px;
  font-size: 14px;
}
#cancel-upload { background: transparent; color: var(--ink-soft); border: 1px solid var(--line); }
#submit-upload { background: var(--accent); color: white; }

@media (max-width: 480px) {
  main#gallery { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; padding: 12px; }
  header h1 { font-size: 26px; }
  .login-card { padding: 32px 24px; }
  .login-card h1 { font-size: 28px; }
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1610;
    --ink: #ece4d0;
    --ink-soft: #b8ad95;
    --accent: #d99656;
    --accent-2: #e0a670;
    --line: #3a2e20;
  }
  .login-card, .photo-card, .photo-info, #upload-form { background: #221c14; color: var(--ink); }
}