/* ===== Telegram Mini App «2027» — стили фронтенда =====
   Пилюльный дизайн (pill-UI), светлая/тёмная тема через CSS-переменные.
   Переменные темы задаются в JS из Telegram themeParams; ниже — дефолт (светлая). */

:root {
  /* Дефолт — светлая тема (если запущено вне Telegram) */
  --bg: #f2f2f7;
  --text: #1c1c1e;
  --hint: #8e8e93;
  --button: #007aff;
  --button-text: #ffffff;
  --secondary-bg: #ffffff;
  --link: #007aff;

  /* Производные цвета */
  --card: #ffffff;
  --border: rgba(60, 60, 67, 0.12);
  --danger: #ff3b30;
  --danger-soft: rgba(255, 59, 48, 0.10);
  --success-soft: rgba(52, 199, 89, 0.12);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.10);

  --radius-pill: 999px;
  --radius-card: 20px;
  --min-tap: 44px;
  --gutter: 16px;

  color-scheme: light;
}

html[data-theme="dark"] {
  --bg: #000000;
  --text: #ffffff;
  --hint: #98989f;
  --button: #2ea6ff;
  --button-text: #ffffff;
  --secondary-bg: #1c1c1e;
  --link: #64d2ff;

  --card: #1c1c1e;
  --border: rgba(255, 255, 255, 0.12);
  --danger: #ff453a;
  --danger-soft: rgba(255, 69, 58, 0.16);
  --success-soft: rgba(48, 209, 88, 0.16);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.5);

  color-scheme: dark;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.4;
  min-height: 100vh;
  padding: 0 var(--gutter);
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* ===== Шапка ===== */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(14px + env(safe-area-inset-top)) 0 10px;
  max-width: 520px;
  margin: 0 auto;
}

.app-title {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.app-user {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--hint);
}

.owner-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--button);
  background: var(--success-soft);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
}

/* ===== Панель вкладок ===== */
.tabs-section {
  max-width: 520px;
  margin: 0 auto;
  padding: 4px 0 12px;
}

.tabs-scroll {
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.tabs-scroll::-webkit-scrollbar {
  display: none;
}

.tabs-list {
  display: flex;
  gap: 8px;
  padding: 2px;
  width: max-content;
}

.tab-chip {
  min-height: var(--min-tap);
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--secondary-bg);
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.1s ease, border-color 0.2s ease;
}

.tab-chip:active {
  transform: scale(0.97);
}

.tab-chip.active {
  background: var(--button);
  color: var(--button-text);
  border-color: transparent;
}

.tabs-toolbar {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  align-items: center;
}

.pill-btn {
  min-height: var(--min-tap);
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  border: 1px dashed var(--border);
  background: transparent;
  color: var(--link);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease, opacity 0.2s ease;
}

.pill-btn:active {
  background: var(--secondary-bg);
}

.pill-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  color: var(--hint);
}

.icon-btn {
  width: var(--min-tap);
  height: var(--min-tap);
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: var(--secondary-bg);
  color: var(--text);
  font-size: 20px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}

.icon-btn:active {
  background: var(--border);
}

/* ===== Карточки ===== */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-md);
}

/* ===== Форма ===== */
.expense-form {
  max-width: 520px;
  margin: 0 auto 16px;
  padding: 14px;
}

.expense-form form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.field {
  min-height: var(--min-tap);
  padding: 11px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: var(--secondary-bg);
  color: var(--text);
  font-size: 16px;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
}

.field::placeholder {
  color: var(--hint);
}

.field:focus {
  outline: none;
  border-color: var(--button);
  box-shadow: 0 0 0 2px var(--button);
}

select.field {
  cursor: pointer;
}

.form-error {
  margin-top: 10px;
  padding: 10px 14px;
  border-radius: 14px;
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 14px;
  font-weight: 500;
}

/* ===== Кнопки ===== */
.btn {
  min-height: var(--min-tap);
  padding: 11px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.1s ease, background-color 0.2s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.btn-secondary {
  background: var(--secondary-bg);
  color: var(--text);
  border-color: var(--border);
}

.btn-danger {
  background: var(--danger);
  color: #ffffff;
}

/* ===== Список записей ===== */
.expenses-section {
  max-width: 520px;
  margin: 0 auto;
  padding-bottom: 16px;
}

.empty-state {
  text-align: center;
  color: var(--hint);
  padding: 28px 16px;
  font-size: 15px;
}

.expenses-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.expense-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  animation: card-in 0.25s ease;
}

@keyframes card-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.expense-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.expense-title {
  font-size: 16px;
  font-weight: 600;
  word-break: break-word;
}

.expense-amount {
  font-size: 16px;
  font-weight: 700;
  color: var(--button);
  white-space: nowrap;
}

.expense-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  font-size: 13px;
  color: var(--hint);
}

.expense-meta .payer {
  color: var(--text);
  font-weight: 500;
}

.expense-comment {
  font-size: 14px;
  color: var(--hint);
  word-break: break-word;
}

.expense-delete {
  align-self: flex-end;
  min-height: 36px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.expense-delete:active {
  background: var(--danger);
  color: #fff;
}

/* ===== Итоги ===== */
.totals {
  position: sticky;
  bottom: 0;
  max-width: 520px;
  margin: 0 auto;
  padding: 12px 0 calc(12px + env(safe-area-inset-bottom));
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  background: var(--bg);
}

.total-badge {
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  background: var(--secondary-bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}

.total-badge--main {
  background: var(--button);
  color: var(--button-text);
  border-color: transparent;
}

/* ===== Модальное окно ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--gutter);
  z-index: 100;
  animation: fade-in 0.2s ease;
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal {
  width: 100%;
  max-width: 380px;
  max-height: 86vh;
  overflow-y: auto;
  padding: 20px;
  animation: pop-in 0.2s ease;
}

@keyframes pop-in {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-title {
  margin: 0 0 14px;
  font-size: 19px;
  font-weight: 700;
}

.modal-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.field-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--hint);
}

.modal-message {
  margin: 0;
  font-size: 15px;
  color: var(--text);
}

.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.modal-actions .btn {
  flex: 1;
}

/* Кнопки-пункты меню вкладки */
.menu-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.menu-item {
  min-height: var(--min-tap);
  padding: 12px 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--secondary-bg);
  color: var(--text);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: background-color 0.2s ease;
}

.menu-item:active {
  background: var(--border);
}

.menu-item--danger {
  color: var(--danger);
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  left: 50%;
  bottom: calc(20px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  z-index: 200;
  max-width: 90vw;
  text-align: center;
  animation: pop-in 0.2s ease;
}

/* ===== Фатальная ошибка ===== */
.fatal-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--gutter);
  z-index: 300;
}

.fatal-card {
  width: 100%;
  max-width: 380px;
  padding: 24px;
  text-align: center;
}

.fatal-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.fatal-message {
  color: var(--hint);
  margin-bottom: 18px;
}

/* ===== Утилиты ===== */
.hidden {
  display: none !important;
}