:root {
  color-scheme: light;
  --page-background: #fff8f1;
  --panel-background: #ffffff;
  --panel-border: #ead7c6;
  --text-main: #2a1e17;
  --text-muted: #6d5b50;
  --accent: #b64926;
  --accent-dark: #8f3316;
  --success-background: #e7f8ec;
  --success-text: #215c31;
  --shadow-soft: 0 10px 28px rgba(42, 30, 23, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, #fff8f1 0%, #ffe9d7 100%);
  color: var(--text-main);
}

.body--lightbox-open {
  overflow: hidden;
}

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

button,
input,
label {
  font: inherit;
}

.page-shell {
  min-height: 100vh;
  padding: 24px 16px 48px;
}

.page-shell--centered {
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-panel {
  width: min(100%, 1120px);
  margin: 0 auto;
}

.page-panel--narrow {
  max-width: 420px;
}

.hero-panel,
.form-panel,
.gallery-panel,
.admin-panel,
.error-panel {
  background: var(--panel-background);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  box-shadow: var(--shadow-soft);
}

.hero-panel {
  padding: 40px 28px;
  text-align: center;
}

.hero-panel__eyebrow,
.gallery-header__eyebrow,
.admin-header__eyebrow {
  margin: 0 0 12px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-panel__title,
.gallery-header__title,
.admin-header__title,
.error-panel__title {
  margin: 0 0 12px;
  font-size: clamp(2rem, 7vw, 3.75rem);
  line-height: 1.05;
}

.hero-panel__copy,
.gallery-header__copy,
.admin-header__copy,
.error-panel__copy,
.name-form__helper,
.gallery-card__caption,
.gallery-card__meta,
.submission-card__meta {
  color: var(--text-muted);
}

.hero-panel__copy {
  margin: 0 auto 28px;
  max-width: 26rem;
  font-size: 1.05rem;
}

.action-button,
.upload-form__submit,
.name-form__submit,
.admin-card__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 20px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
}

.action-button:hover,
.upload-form__submit:hover,
.name-form__submit:hover,
.admin-card__link:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.upload-form__submit:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.form-panel {
  padding: 28px 20px;
}

.form-panel__title {
  margin: 0 0 10px;
  font-size: 2rem;
}

.form-panel__copy {
  margin: 0 0 20px;
  color: var(--text-muted);
}

.name-form {
  display: grid;
  gap: 16px;
}

.name-form__field {
  display: grid;
  gap: 8px;
}

.name-form__label,
.upload-form__label {
  font-weight: 700;
}

.name-form__input {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--panel-border);
  border-radius: 14px;
}

.name-form__error {
  margin: 0;
  color: #9b1d20;
  font-weight: 700;
}

.gallery-panel,
.admin-panel,
.error-panel {
  padding: 20px;
}

.gallery-header,
.admin-header,
.admin-photo-header {
  margin-bottom: 20px;
}

.gallery-header__title,
.admin-header__title,
.admin-photo-header__title {
  font-size: clamp(1.8rem, 6vw, 3rem);
  margin: 0 0 8px;
}

.gallery-header__actions,
.admin-photo-header__actions {
  margin-top: 16px;
}

.flash-message {
  margin-bottom: 18px;
  padding: 14px 16px;
  border-radius: 16px;
  background: var(--success-background);
  color: var(--success-text);
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.flash-message--hidden {
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
}

.gallery-grid,
.admin-grid,
.submission-grid {
  display: grid;
  gap: 16px;
}

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

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

.gallery-card,
.admin-card,
.submission-card,
.original-photo-card {
  overflow: hidden;
  background: #ffffff;
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  box-shadow: var(--shadow-soft);
}

.gallery-card__image,
.admin-card__image,
.submission-card__image,
.original-photo-card__image {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #f8eee6;
  cursor: zoom-in;
}

.gallery-card__body,
.admin-card__body,
.submission-card__body,
.original-photo-card__body {
  padding: 14px;
}

.gallery-card__title,
.admin-card__title,
.submission-card__title {
  margin: 0 0 6px;
  font-size: 1rem;
}

.gallery-card__subtitle,
.admin-card__subtitle {
  margin: 0 0 12px;
  font-weight: 700;
  color: var(--text-muted);
}

.gallery-card__caption {
  margin: 0 0 14px;
  font-size: 0.95rem;
}

.upload-form {
  display: grid;
  gap: 10px;
}

.upload-form__picker {
  display: grid;
  gap: 8px;
}

.upload-form__input {
  width: 100%;
}

.upload-form__file-name {
  min-height: 1.2em;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.upload-form__hint {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.admin-card__link {
  width: 100%;
}

.admin-photo-layout {
  display: grid;
  gap: 20px;
}

.submission-card__meta {
  margin: 0;
  display: grid;
  gap: 4px;
  font-size: 0.95rem;
}

.back-link {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--accent-dark);
  font-weight: 700;
  text-decoration: none;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
}

.image-lightbox[hidden] {
  display: none;
}

.image-lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(20, 14, 10, 0.9);
}

.image-lightbox__dialog {
  position: relative;
  z-index: 1;
  width: min(100vw, 1100px);
  max-height: 100vh;
  padding: 56px 16px 16px;
}

.image-lightbox__image {
  width: 100%;
  max-height: calc(100vh - 72px);
  object-fit: contain;
  border-radius: 16px;
}

.image-lightbox__close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  color: #ffffff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
}

@media (min-width: 768px) {
  .page-shell {
    padding: 32px 24px 64px;
  }

  .gallery-panel,
  .admin-panel,
  .error-panel {
    padding: 28px;
  }

  .gallery-grid,
  .admin-grid,
  .submission-grid {
    gap: 20px;
  }

  .gallery-grid,
  .admin-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }

  .submission-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }

  .admin-photo-layout {
    grid-template-columns: minmax(260px, 340px) 1fr;
    align-items: start;
  }
}