/* ============================================
   Pear Notes with Reminders — Style (Apple Style)
   Тёмная / светлая тема, минимализм, моноширинный шрифт
   ============================================ */

/* ---------- Сброс и базовые настройки ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ========== Тёмная тема (по умолчанию) ========== */
:root {
  --bg-primary: #1c1c1e;
  --bg-secondary: #2c2c2e;
  --bg-card: #3a3a3c;
  --bg-hover: #48484a;
  --text-primary: #f5f5f7;
  --text-secondary: #a1a1a6;
  --text-muted: #636366;
  --accent: #ffffff;
  --accent-hover: #e0e0e0;
  --danger: #ff453a;
  --danger-hover: #d63031;
  --border: #48484a;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --radius: 14px;
  --radius-sm: 10px;
  --font-mono: 'JetBrains Mono', 'Courier New', Monaco, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --transition: 0.25s cubic-bezier(0.25, 0.1, 0.25, 1);
  --toast-bg: #3a3a3c;
  --toast-color: #f5f5f7;
  --scrollbar-thumb: #48484a;
  --scrollbar-hover: #636366;
  --calendar-day-today-text: #000;
  --calendar-dot: #ffffff;
  --calendar-dot-today: #000;
  --modal-overlay: rgba(0, 0, 0, 0.6);
  --input-bg: #3a3a3c;
}

/* ========== Светлая тема ========== */
.theme-light {
  --bg-primary: #f2f2f7;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-hover: #e8e8ed;
  --text-primary: #1c1c1e;
  --text-secondary: #636366;
  --text-muted: #aeaeb2;
  --accent: #007aff;
  --accent-hover: #0066d6;
  --danger: #ff3b30;
  --danger-hover: #d63031;
  --border: #d1d1d6;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --toast-bg: #1c1c1e;
  --toast-color: #f5f5f7;
  --scrollbar-thumb: #c7c7cc;
  --scrollbar-hover: #aeaeb2;
  --calendar-day-today-text: #fff;
  --calendar-dot: #007aff;
  --calendar-dot-today: #fff;
  --modal-overlay: rgba(0, 0, 0, 0.3);
  --input-bg: #f2f2f7;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

/* ---------- Шапка ---------- */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background var(--transition), border-color var(--transition);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header__logo-img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
}

.header__title {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

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

/* ---------- Переключатель темы ---------- */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  background: var(--bg-hover);
}

.theme-toggle__icon {
  font-size: 1.2rem;
  position: absolute;
  transition: transform var(--transition), opacity var(--transition);
}

.theme-toggle__icon--sun {
  opacity: 0;
  transform: translateY(20px) rotate(90deg);
}

.theme-toggle__icon--moon {
  opacity: 1;
  transform: translateY(0) rotate(0);
}

/* В светлой теме — показываем солнце, прячем луну */
.theme-light .theme-toggle__icon--sun {
  opacity: 1;
  transform: translateY(0) rotate(0);
}

.theme-light .theme-toggle__icon--moon {
  opacity: 0;
  transform: translateY(-20px) rotate(-90deg);
}

/* ---------- Кнопки ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), opacity var(--transition), color var(--transition);
  user-select: none;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.96);
}

.btn--primary {
  background: var(--accent);
  color: var(--calendar-day-today-text);
}

.btn--primary:hover {
  background: var(--accent-hover);
}

.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  background: var(--bg-hover);
}

.btn--icon {
  background: transparent;
  color: var(--text-primary);
  padding: 6px 12px;
  font-size: 1.4rem;
  border-radius: var(--radius-sm);
  line-height: 1;
}

.btn--icon:hover {
  background: var(--bg-hover);
}

.btn--danger {
  color: var(--danger);
  border-color: var(--danger);
}

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

/* ---------- Основной макет ---------- */
.main {
  display: flex;
  gap: 24px;
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
  min-height: calc(100vh - 80px);
}

/* ---------- Боковая панель (календарь + поиск) ---------- */
.sidebar {
  flex: 0 0 320px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ---------- Календарь ---------- */
.calendar {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), box-shadow var(--transition);
}

.calendar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.calendar__month-year {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.3px;
}

.calendar__weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.calendar__days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.calendar__day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 400;
  border-radius: 50%;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  position: relative;
  color: var(--text-secondary);
}

.calendar__day:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.calendar__day--today {
  background: var(--accent);
  color: var(--calendar-day-today-text);
  font-weight: 700;
}

.calendar__day--selected {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.calendar__day--other {
  color: var(--text-muted);
  pointer-events: none;
}

/* Точка под днём, если есть заметки */
.calendar__day--has-notes::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--calendar-dot);
}

.calendar__day--today.calendar__day--has-notes::after {
  background: var(--calendar-dot-today);
}

/* ---------- Поиск ---------- */
.search__input {
  width: 100%;
  padding: 12px 16px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

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

.search__input:focus {
  border-color: var(--accent);
}

/* ---------- Секция заметок ---------- */
.notes-section {
  flex: 1;
  min-width: 0;
}

.notes-section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.notes-section__title {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.notes-section__empty {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.1rem;
  padding: 60px 20px;
  display: none;
}

/* ---------- Сетка карточек заметок ---------- */
.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

/* ---------- Карточка заметки ---------- */
.note-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition), background var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  animation: cardIn 0.3s ease-out;
  border: 1px solid transparent;
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.note-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--border);
}

.note-card--completed {
  opacity: 0.5;
}

.note-card--completed .note-card__title,
.note-card--completed .note-card__text {
  text-decoration: line-through;
  color: var(--text-muted);
}

.note-card--highlighted {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  animation: highlightPulse 1.5s ease-in-out;
}

@keyframes highlightPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0,0,0,0.1); }
  50% { box-shadow: 0 0 20px 4px rgba(0,0,0,0.08); }
}

.note-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.3px;
  word-break: break-word;
  padding-right: 30px;
}

.note-card__text {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  word-break: break-word;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.note-card__datetime {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.note-card__actions {
  display: flex;
  gap: 6px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.note-card__actions .btn {
  padding: 6px 14px;
  font-size: 0.8rem;
}

/* ---------- Модальное окно ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--modal-overlay);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay--open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  width: 90%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
  transform: scale(0.95);
  transition: transform var(--transition), background var(--transition);
}

.modal-overlay--open .modal {
  transform: scale(1);
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 0;
}

.modal__title {
  font-size: 1.3rem;
  font-weight: 700;
}

.modal__body {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal__label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.modal__input,
.modal__textarea {
  padding: 12px 14px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.modal__textarea {
  font-family: var(--font-mono);
  resize: vertical;
  min-height: 100px;
}

.modal__input:focus,
.modal__textarea:focus {
  border-color: var(--accent);
}

.modal__input[type="datetime-local"] {
  color-scheme: dark;
}

/* В светлой теме — светлый календарик */
.theme-light .modal__input[type="datetime-local"] {
  color-scheme: light;
}

.modal__footer {
  display: flex;
  justify-content: space-between;
  padding: 0 24px 20px;
  gap: 12px;
}

/* ---------- Тостер (внутреннее уведомление) ---------- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--toast-bg);
  color: var(--toast-color);
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  font-size: 0.9rem;
  z-index: 300;
  opacity: 0;
  transition: opacity var(--transition), transform var(--transition);
  pointer-events: none;
  border: 1px solid var(--border);
  max-width: 90vw;
  text-align: center;
}

.toast--visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

/* ---------- Адаптивность (мобильные) ---------- */
@media (max-width: 768px) {
  .header {
    padding: 10px 16px;
  }

  .header__title {
    font-size: 1.1rem;
  }

  .header__logo-img {
    width: 30px;
    height: 30px;
  }

  .main {
    flex-direction: column;
    padding: 16px;
    gap: 16px;
  }

  .sidebar {
    flex: none;
    width: 100%;
  }

  .notes-section__header {
    flex-direction: column;
    align-items: stretch;
  }

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

  .modal {
    width: 95%;
  }

  .calendar {
    padding: 16px;
  }
}

/* ---------- Скроллбар ---------- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-hover);
}