:root {
  --bg: #f4efe6;
  --surface: rgba(255, 252, 247, 0.92);
  --surface-strong: #fffdf8;
  --line: #dbcbb9;
  --text: #26201b;
  --muted: #6f665c;
  --brand: #8f250c;
  --brand-deep: #6f1b08;
  --success: #dff2df;
  --error: #f9d8d6;
  --shadow: 0 18px 40px rgba(90, 59, 30, 0.12);
  --radius: 20px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(162, 123, 92, 0.18), transparent 32%),
    linear-gradient(180deg, #f8f4ee 0%, var(--bg) 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 28px;
  background: rgba(248, 244, 238, 0.84);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(143, 37, 12, 0.08);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--brand);
}

.nav-link {
  padding: 9px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 700;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.nav-link:hover {
  transform: translateY(-1px);
  background: rgba(143, 37, 12, 0.08);
  color: var(--brand);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.welcome-text {
  color: var(--muted);
}

.text-button,
.primary-button,
.secondary-button,
.remove-button {
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease, opacity 0.18s ease;
}

.text-button {
  padding: 10px 14px;
  background: transparent;
  color: var(--brand);
}

.primary-button,
.secondary-button {
  padding: 12px 18px;
  font-weight: 600;
}

.primary-button {
  background: var(--brand);
  color: white;
}

.secondary-button {
  background: rgba(143, 37, 12, 0.08);
  color: var(--brand);
}

.remove-button {
  padding: 10px 14px;
  background: rgba(143, 37, 12, 0.08);
  color: var(--brand);
  white-space: nowrap;
}

.primary-button:hover,
.secondary-button:hover,
.remove-button:hover,
.text-button:hover {
  transform: translateY(-1px);
}

.page-shell {
  width: min(1200px, calc(100vw - 32px));
  margin: 28px auto 60px;
}

.messages {
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
}

.message {
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
}

.message.success {
  background: var(--success);
}

.message.error {
  background: var(--error);
}

.hero {
  padding: 28px;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(143, 37, 12, 0.92), rgba(170, 111, 72, 0.92));
  color: white;
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.8rem;
  opacity: 0.8;
}

.hero h1,
.auth-card h1,
.panel h1 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.hero-copy {
  max-width: 760px;
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
  opacity: 0.9;
}

.gallery-hero {
  padding: 28px;
  border-radius: 32px;
  background:
    radial-gradient(circle at 12% 18%, rgba(255, 255, 255, 0.9), transparent 28%),
    linear-gradient(135deg, rgba(255, 252, 247, 0.96), rgba(238, 224, 205, 0.74));
  border: 1px solid rgba(143, 37, 12, 0.08);
  box-shadow: var(--shadow);
}

.photo-library {
  display: grid;
  gap: 34px;
  margin-top: 28px;
}

.month-section {
  display: grid;
  gap: 22px;
}

.month-header {
  position: sticky;
  top: 76px;
  z-index: 10;
  padding: 8px 0;
  background: linear-gradient(180deg, rgba(244, 239, 230, 0.96), rgba(244, 239, 230, 0.78));
  backdrop-filter: blur(12px);
}

.month-header h2,
.date-section h3 {
  margin: 0;
}

.month-header h2 {
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  letter-spacing: -0.04em;
}

.date-section {
  display: grid;
  gap: 12px;
}

.date-section h3 {
  color: var(--muted);
  font-size: 1rem;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 12px;
}

.photo-card {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.photo-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 4;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(143, 37, 12, 0.08);
  box-shadow: 0 14px 28px rgba(90, 59, 30, 0.12);
}

.photo-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.24s ease;
}

.photo-card:hover .photo-thumb img {
  transform: scale(1.04);
}

.photo-caption {
  display: grid;
  gap: 2px;
  min-width: 0;
  padding: 0 4px;
}

.photo-caption strong,
.photo-caption span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.photo-caption span {
  color: var(--muted);
  font-size: 0.88rem;
}

.empty-gallery {
  margin-top: 24px;
}

.layout-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(300px, 1fr);
  gap: 22px;
  margin-top: 24px;
}

.detail-layout {
  align-items: start;
}

.panel {
  padding: 24px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid rgba(143, 37, 12, 0.08);
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.panel-header h2 {
  margin: 0;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
  color: var(--muted);
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--text);
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(143, 37, 12, 0.12);
  border-color: rgba(143, 37, 12, 0.3);
}

.full-width {
  width: 100%;
}

.history-search-block {
  display: grid;
  gap: 8px;
  align-content: start;
}

.field-label-spacer {
  visibility: hidden;
  display: block;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
}

.items-panel {
  margin-bottom: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.62);
}

.items-panel-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  font-weight: 600;
}

.muted {
  color: var(--muted);
  font-size: 0.92rem;
}

#items-container {
  display: grid;
  gap: 12px;
  margin-bottom: 12px;
}

.items-add-button {
  width: 100%;
  padding: 10px 14px;
}

.history-search-button {
  width: 100%;
}

.history-select-mobile {
  display: none;
}

.item-row {
  position: relative;
  display: grid;
  width: 100%;
  grid-template-columns: 44px minmax(0, 2.4fr) minmax(84px, 1fr) 28px minmax(112px, 1.2fr) minmax(76px, 0.8fr);
  align-items: center;
  gap: 8px;
}

.item-number {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: rgba(143, 37, 12, 0.08);
  color: var(--brand);
  font-weight: 700;
}

.autocomplete {
  position: relative;
}

.herb-name {
  min-width: 0;
}

.suggestions,
.special-usage-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  z-index: 20;
  display: grid;
  gap: 6px;
  padding: 8px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fffdf8;
  box-shadow: 0 14px 24px rgba(45, 32, 27, 0.12);
}

.suggestion-item,
.special-usage-option {
  width: 100%;
  padding: 10px 12px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}

.suggestion-item:hover,
.special-usage-option:hover {
  background: rgba(143, 37, 12, 0.08);
}

.hidden {
  display: none;
}

.dosage-input {
  min-width: 0;
}

.special-usage-picker {
  position: relative;
  min-width: 0;
}

.special-usage-trigger {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--text);
  text-align: left;
}

.special-usage-trigger.is-placeholder {
  color: var(--muted);
}

.special-usage-trigger:focus {
  outline: 2px solid rgba(143, 37, 12, 0.12);
  border-color: rgba(143, 37, 12, 0.3);
}

.unit {
  color: var(--muted);
  font-weight: 600;
  text-align: center;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
}

.history-list {
  display: grid;
  gap: 12px;
}

.history-card {
  display: grid;
  gap: 8px;
  width: 100%;
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(143, 37, 12, 0.08);
  text-align: left;
}

.history-select-card {
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.history-select-card:hover {
  transform: translateY(-1px);
  border-color: rgba(143, 37, 12, 0.24);
  background: rgba(255, 250, 244, 0.92);
}

.history-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.history-meta,
.history-diagnosis,
.empty-state {
  color: var(--muted);
}

.detail-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.detail-block {
  margin-top: 20px;
}

.detail-block h2,
.image-panel h2 {
  margin: 0 0 12px;
}

.items-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.items-preview span {
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(143, 37, 12, 0.08);
}

.prescription-preview {
  width: 100%;
  border-radius: 18px;
  border: 1px solid var(--line);
}

.auth-shell {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 180px);
}

.auth-card {
  width: min(420px, 100%);
  padding: 28px;
  border-radius: 24px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.full-button {
  width: 100%;
}

.form-error {
  color: var(--brand-deep);
  font-size: 0.94rem;
}

@media (max-width: 900px) {
  .layout-grid,
  .detail-meta,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .desktop-history-panel {
    display: none;
  }

  .history-select-mobile {
    display: block;
  }

  .item-row {
    grid-template-columns: 36px repeat(11, minmax(0, 1fr));
    gap: 6px;
  }

  .autocomplete {
    grid-column: 2 / 9;
  }

  .dosage-input {
    grid-column: 9 / 12;
  }

  .unit {
    grid-column: 12 / 13;
  }

  .item-number {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    font-size: 0.92rem;
  }

  .herb-name,
  .dosage-input,
  .special-usage-trigger {
    padding: 12px 10px;
  }

  .autocomplete,
  .dosage-input,
  .special-usage-picker {
    min-width: 0;
  }

  .special-usage-picker {
    grid-column: 1 / 7;
    width: 100%;
  }

  .unit {
    font-size: 0.92rem;
  }

  .remove-button {
    grid-column: 7 / 13;
    width: 100%;
    padding: 10px 12px;
  }

  .items-panel-header,
  .panel-header,
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .primary-nav {
    width: 100%;
    justify-content: space-between;
  }

  .photo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .photo-thumb {
    border-radius: 16px;
  }

  .month-header {
    top: 118px;
  }

  .form-actions {
    justify-content: stretch;
  }

  .form-actions .primary-button {
    width: 100%;
  }
}