/* ====================================================================
   Ava Mini App — main stylesheet
   Telegram theme variables auto-applied from window.Telegram.WebApp
   ==================================================================== */

:root {
  --tg-bg: var(--tg-theme-bg-color, #ffffff);
  --tg-text: var(--tg-theme-text-color, #000000);
  --tg-hint: var(--tg-theme-hint-color, #999999);
  --tg-link: var(--tg-theme-link-color, #2481cc);
  --tg-button: var(--tg-theme-button-color, #2481cc);
  --tg-button-text: var(--tg-theme-button-text-color, #ffffff);
  --tg-secondary-bg: var(--tg-theme-secondary-bg-color, #f1f1f1);

  --radius: 12px;
  --space: 16px;
  --space-sm: 8px;
  --header-h: 52px;
  --nav-h: 60px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--tg-bg);
  color: var(--tg-text);
  font-size: 15px;
  line-height: 1.4;
  -webkit-tap-highlight-color: transparent;
}

button {
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
}

/* -------- topbar -------- */

#topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  height: var(--header-h);
  padding: 0 12px;
  background: var(--tg-bg);
  border-bottom: 1px solid var(--tg-secondary-bg);
}

.topbar-btn {
  width: 36px;
  height: 36px;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}

.topbar-btn:active { background: var(--tg-secondary-bg); }
.topbar-btn-hidden { visibility: hidden; pointer-events: none; }

.topbar-title {
  flex: 1;
  text-align: center;
  font-weight: 600;
  font-size: 17px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

/* -------- main app area -------- */

#app {
  min-height: calc(100vh - var(--header-h) - var(--nav-h));
  padding-bottom: var(--space);
}

.loading {
  padding: 40px;
  text-align: center;
  color: var(--tg-hint);
}

.error-box {
  margin: 16px;
  padding: 16px;
  background: #fee;
  color: #c00;
  border-radius: var(--radius);
  font-family: ui-monospace, monospace;
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-word;
}

/* -------- bottom nav -------- */

#bottomnav {
  position: sticky;
  bottom: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  height: var(--nav-h);
  background: var(--tg-bg);
  border-top: 1px solid var(--tg-secondary-bg);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: var(--tg-hint);
  transition: color 0.15s;
}

.nav-item.active { color: var(--tg-button); }
.nav-item:active { background: var(--tg-secondary-bg); }

.nav-icon { font-size: 22px; line-height: 1; }
.nav-label { font-size: 11px; }

/* -------- card / section block -------- */

.card {
  background: var(--tg-secondary-bg);
  border-radius: var(--radius);
  margin: var(--space-sm) var(--space);
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  padding: 12px 16px 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--tg-hint);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.card-header-icon {
  margin-right: 8px;
  font-size: 16px;
}

.card-row {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border-top: 1px solid rgba(0,0,0,0.06);
  min-height: 48px;
}

.card-row:first-of-type { border-top: none; }
.card-row:active { background: rgba(0,0,0,0.05); }

.card-row-icon {
  font-size: 20px;
  margin-right: 12px;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}

.card-row-content {
  flex: 1;
  min-width: 0;
}

.card-row-title {
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-row-sub {
  font-size: 13px;
  color: var(--tg-hint);
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-row-meta {
  font-size: 13px;
  color: var(--tg-hint);
  margin-left: 8px;
  flex-shrink: 0;
}

.card-row-chevron {
  color: var(--tg-hint);
  font-size: 18px;
  margin-left: 8px;
}

.card-empty {
  padding: 16px;
  text-align: center;
  color: var(--tg-hint);
  font-style: italic;
}

/* -------- buttons -------- */

.btn-primary {
  background: var(--tg-button);
  color: var(--tg-button-text);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-weight: 500;
  width: 100%;
}

.btn-primary:active { opacity: 0.85; }

.btn-secondary {
  background: var(--tg-secondary-bg);
  color: var(--tg-text);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-weight: 500;
}

.btn-row {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
}

/* -------- forms / inputs -------- */

.form-group {
  margin-bottom: 12px;
  padding: 0 16px;
}

.form-label {
  font-size: 13px;
  color: var(--tg-hint);
  margin-bottom: 4px;
}

.input {
  width: 100%;
  padding: 12px;
  background: var(--tg-secondary-bg);
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 15px;
  color: var(--tg-text);
}

.input:focus { outline: none; border-color: var(--tg-button); }

/* -------- progress bar (КБЖУ) -------- */

.progress {
  height: 8px;
  background: rgba(0,0,0,0.1);
  border-radius: 4px;
  overflow: hidden;
  margin: 4px 0;
}

.progress-fill {
  height: 100%;
  background: var(--tg-button);
  transition: width 0.3s;
}

.progress-fill.warn { background: #f5a623; }
.progress-fill.over { background: #d0021b; }

/* -------- tabs -------- */

.tabs {
  display: flex;
  border-bottom: 1px solid var(--tg-secondary-bg);
  background: var(--tg-bg);
  position: sticky;
  top: var(--header-h);
  z-index: 5;
}

.tab {
  flex: 1;
  padding: 12px;
  text-align: center;
  font-weight: 500;
  color: var(--tg-hint);
  border-bottom: 2px solid transparent;
}

.tab.active {
  color: var(--tg-button);
  border-bottom-color: var(--tg-button);
}

/* -------- search bar -------- */

.searchbar {
  padding: 8px 16px;
  background: var(--tg-bg);
  position: sticky;
  top: var(--header-h);
  z-index: 5;
}

.searchbar-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--tg-secondary-bg);
  border: none;
  border-radius: 10px;
  font-size: 15px;
}

/* -------- detail screens -------- */

.detail-row {
  display: flex;
  padding: 12px 16px;
  border-bottom: 1px solid var(--tg-secondary-bg);
}

.detail-label {
  width: 90px;
  flex-shrink: 0;
  color: var(--tg-hint);
  font-size: 14px;
}

.detail-value {
  flex: 1;
  word-break: break-word;
}

/* -------- modal -------- */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: none;
  align-items: flex-end;
  z-index: 100;
}

.modal-backdrop.active { display: flex; }

.modal {
  width: 100%;
  background: var(--tg-bg);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 20px 16px 24px;
  max-height: 80vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  margin-bottom: 16px;
}

.modal-title {
  flex: 1;
  font-size: 17px;
  font-weight: 600;
}

.modal-close { font-size: 24px; color: var(--tg-hint); }

/* -------- action buttons (в карточках планированных записей) -------- */

.btn-action {
  padding: 6px 12px;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}
.btn-action:active { opacity: 0.8; }