/* --- Базовые стили --- */
body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #0f111a;
  color: #ffffff;
  transition: background-color 0.3s, color 0.3s;
  min-height: 100vh;
  padding-top: 60px;
}

/* Светлая тема */
body.light {
  background-color: #f4f4f4;
  color: #222222;
}

/* Контейнер */
.container {
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  padding: 40px;
  gap: 20px;
  flex-wrap: wrap;
  align-items: flex-start;
}

/* Форма и список задач */
.task-form, .task-list {
  background-color: #1a1c2c;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 0 15px rgba(0,0,0,0.6);
  width: 45%;
  box-sizing: border-box;
  transition: background-color 0.3s, color 0.3s;
}

body.light .task-form, body.light .task-list {
  background-color: #fff;
  color: #222;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);
}

h2 {
  margin-top: 0;
}

/* Инпуты, textarea, select */
input[type="text"], textarea, select, input[type="number"] {
  width: 100%;
  padding: 10px;
  margin-bottom: 12px;
  border-radius: 8px;
  border: 1px solid #555;
  background-color: #2a2d3e;
  color: #ffffff;
  box-sizing: border-box;
  transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

body.light input[type="text"],
body.light textarea,
body.light select,
body.light input[type="number"] {
  background-color: #f0f0f0;
  color: #222;
  border-color: #ccc;
}

/* Кнопки */
button {
  background-color: #4e4eff;
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  transition: background-color 0.3s ease, transform 0.2s ease;
  user-select: none;
}

button:hover {
  background-color: #6c6cff;
  transform: scale(1.03);
}

/* Список задач */
.task-item {
  background-color: #25283d;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 10px;
  border-left: 6px solid #4e4eff;
  box-sizing: border-box;
  transition: background-color 0.3s, color 0.3s;
}

body.light .task-item {
  background-color: #e8e8ff;
  color: #222;
}

.task-item h3 {
  margin: 0 0 8px;
  color: inherit;
  display: flex;
  align-items: center;
  gap: 10px;
}

.task-item p {
  margin: 4px 0;
  color: #ccc;
}

body.light .task-item p {
  color: #555;
}

/* Приоритеты - цвета границ и заголовков */
.task-item[data-priority="Высокий"] {
  border-left-color: #ff4e4e;
}

.task-item[data-priority="Средний"] {
  border-left-color: #ffd54e;
}

.task-item[data-priority="Низкий"] {
  border-left-color: #7af4a4;
}

.task-item[data-priority="Высокий"] h3 {
  color: #ff4e4e;
}

.task-item[data-priority="Средний"] h3 {
  color: #ffcc33;
}

.task-item[data-priority="Низкий"] h3 {
  color: #7af4a4;
}

/* Чекбокс в заголовке */
.task-item input[type="checkbox"] {
  transform: scale(1.2);
  cursor: pointer;
}

/* Отмеченные задачи - зачёркнуты */
.task-item.completed h3 {
  text-decoration: line-through;
  opacity: 0.6;
}

/* Фильтры */
.filters {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

/* Меню-бургер и навигация */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 50px;
  background-color: #1a1c2c;
  display: flex;
  align-items: center;
  padding: 0 20px;
  box-sizing: border-box;
  z-index: 2000;
}

body.light header {
  background-color: #ddd;
}

.burger {
  font-size: 30px;
  cursor: pointer;
  color: white;
  user-select: none;
  z-index: 2100;
}

body.light .burger {
  color: #222;
}

/* Меню слева */
.nav-menu {
  position: fixed;
  top: 50px;
  left: -250px;
  width: 250px;
  height: calc(100vh - 50px);
  background-color: #1a1c2c;
  color: white;
  transition: left 0.3s ease;
  padding: 20px;
  box-sizing: border-box;
  z-index: 2050;
  overflow-y: auto;
}

body.light .nav-menu {
  background-color: #fff;
  color: #222;
}

.nav-menu.active {
  left: 0;
}

.nav-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-menu li {
  margin-bottom: 15px;
  font-size: 16px;
}

.nav-menu a {
  color: inherit;
  text-decoration: none;
}

.nav-menu a:hover {
  text-decoration: underline;
}

/* Кнопка переключения темы */
#theme-toggle {
  margin-left: auto;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: white;
  user-select: none;
  z-index: 2100;
  transition: color 0.3s;
}

body.light #theme-toggle {
  color: #222;
}

@media (max-width: 800px) {
  .container {
    flex-direction: column;
    padding: 20px;
  }
  .task-form, .task-list {
    width: 100%;
  }
}

/* Таймер-кнопка */
.timer-btn {
  margin-left: 10px;
  background: #333;
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 14px;
  border: none;
  cursor: pointer;
}

body.light .timer-btn {
  background: #ddd;
  color: #222;
}

.timer-btn:hover {
  background: #555;
}

body.light .timer-btn:hover {
  background: #ccc;
}

/* --- Розовая тема --- */
body.pink {
  background-color: #ffe4ec;
  color: #5c002e;
}

body.pink .task-form,
body.pink .task-list {
  background-color: #fff0f5;
  color: #5c002e;
  box-shadow: 0 0 15px rgba(255, 182, 193, 0.3);
}

body.pink input[type="text"],
body.pink textarea,
body.pink select,
body.pink input[type="number"] {
  background-color: #ffe4ec;
  color: #5c002e;
  border-color: #ffb6c1;
}

body.pink .task-item {
  background-color: #ffe4ec;
  color: #5c002e;
}

body.pink .task-item p {
  color: #800040;
}

body.pink .task-item[data-priority="Высокий"] h3 {
  color: #c20041;
}

body.pink .task-item[data-priority="Средний"] h3 {
  color: #ff4fa7;
}

body.pink .task-item[data-priority="Низкий"] h3 {
  color: #ffa8d3;
}

body.pink header {
  background-color: #ffc0cb;
}

body.pink .burger {
  color: #5c002e;
}

body.pink .nav-menu {
  background-color: #ffe4ec;
  color: #5c002e;
}

body.pink #theme-toggle {
  color: #5c002e;
}

body.pink .timer-btn {
  background: #ffc0cb;
  color: #5c002e;
}

body.pink .timer-btn:hover {
  background: #ffb6c1;
}

body.pink button {
  background-color: #f8c2d0;  /* светло-розовый */
  color: #800040;             /* бардовый текст */
  border: none;

  cursor: pointer;
}

body.pink button:hover {
  background-color: #f3a8bd;  /* чуть темнее при наведении */
}