:root {
  color-scheme: light dark;
  font-family: "Inter", system-ui, sans-serif;
  --app-height: 100dvh;
  --bg: var(--tg-theme-bg-color, #f7f7f7);
  --text: var(--tg-theme-text-color, #111);
  --hint: var(--tg-theme-hint-color, #888);
  --button: var(--tg-theme-button-color, #2ea6ff);
  --button-text: var(--tg-theme-button-text-color, #fff);
  --card: var(--tg-theme-secondary-bg-color, #fff);
  --accent: var(--tg-theme-link-color, #2ea6ff);
  --border: rgba(0, 0, 0, 0.08);
  --muted-bg: rgba(0, 0, 0, 0.04);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--tg-theme-bg-color, #0f1115);
    --text: var(--tg-theme-text-color, #f5f6f8);
    --hint: var(--tg-theme-hint-color, #9aa3ad);
    --button: var(--tg-theme-button-color, #57b0ff);
    --button-text: var(--tg-theme-button-text-color, #0d1117);
    --card: var(--tg-theme-secondary-bg-color, #171a21);
    --accent: var(--tg-theme-link-color, #7cc4ff);
    --border: rgba(255, 255, 255, 0.1);
    --muted-bg: rgba(255, 255, 255, 0.06);
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f7f7f7;
  --text: #111;
  --hint: #6f747c;
  --button: #2ea6ff;
  --button-text: #fff;
  --card: #fff;
  --accent: #2b7ccc;
  --border: rgba(0, 0, 0, 0.08);
  --muted-bg: rgba(0, 0, 0, 0.04);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f1115;
  --text: #f5f6f8;
  --hint: #9aa3ad;
  --button: #57b0ff;
  --button-text: #0d1117;
  --card: #171a21;
  --accent: #7cc4ff;
  --border: rgba(255, 255, 255, 0.1);
  --muted-bg: rgba(255, 255, 255, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

.app {
  min-height: var(--app-height);
  padding: env(safe-area-inset-top) env(safe-area-inset-right) calc(16px + env(safe-area-inset-bottom)) env(safe-area-inset-left);
  display: flex;
  flex-direction: column;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  gap: 12px;
}

.header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.subtitle {
  margin: 4px 0 0;
  color: var(--hint);
}

.app-main {
  flex: 1;
  padding: 0 16px 16px;
}

.card {
  background: var(--card);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
}

.metric {
  background: var(--muted-bg);
  border-radius: 12px;
  padding: 12px;
}

.metric .label {
  display: block;
  font-size: 12px;
  color: var(--hint);
}

.metric .value {
  font-size: 20px;
  font-weight: 600;
}

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

.list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.list-item .meta {
  color: var(--hint);
  font-size: 12px;
}

.purchase-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

details.history {
  margin-top: 12px;
  border-top: 1px dashed var(--border);
  padding-top: 12px;
}

details.history summary {
  cursor: pointer;
  color: var(--hint);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

details.history[open] summary {
  color: var(--text);
}

.field {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
}

input[type="search"],
input[type="text"],
input[type="datetime-local"] {
  padding: 10px 12px;
  font-size: 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: inherit;
}

select,
textarea {
  padding: 10px 12px;
  font-size: 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: inherit;
  font: inherit;
}

button {
  border: none;
  cursor: pointer;
  font-size: 14px;
  border-radius: 12px;
  padding: 10px 14px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

button:active {
  transform: scale(0.98);
}

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

button.ghost {
  background: transparent;
  color: var(--accent);
}

.family-summary {
  display: grid;
  gap: 12px;
  margin-bottom: 12px;
}

.family-name {
  font-size: 16px;
  font-weight: 600;
}

.family-code {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.family-code code {
  padding: 6px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--muted-bg);
  font-size: 12px;
}

.tab-bar {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--card);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  padding: 8px 8px;
  border-bottom: 1px solid var(--border);
}

.tab {
  background: transparent;
  color: var(--hint);
  font-size: 12px;
}

.tab.active {
  color: var(--accent);
  font-weight: 600;
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

.muted {
  color: var(--hint);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 1000;
}

.modal-content {
  background: var(--card);
  border-radius: 16px;
  padding: 16px;
  width: min(420px, 100%);
  display: grid;
  gap: 16px;
  max-height: min(640px, calc(var(--app-height) - 32px));
  overflow-y: auto;
}

.modal[aria-hidden="false"] {
  display: flex;
}

.low-perf * {
  animation: none !important;
  transition: none !important;
  box-shadow: none !important;
}

@media (prefers-reduced-motion: reduce) {
  button {
    transition: none;
  }
}

@media (max-width: 420px) {
  .app-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-actions {
    width: 100%;
    justify-content: flex-start;
  }
}