---

:root {
    /* Светлая тема (по умолчанию) */
    --bg-color: #ffffff;
    --text-main: #000000;
    --text-muted: #9ca3af;
    --line-color: #f3f4f6;
    --header-line: #000000;
    --hover-bg: #fafafa;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    /* Темная тема */
    --bg-color: #121212;
    --text-main: #ffffff;
    --text-muted: #6b7280;
    --line-color: #262626;
    --header-line: #ffffff;
    --hover-bg: #1a1a1a;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-main);
    transition: background-color 0.4s ease, color 0.4s ease;
    padding: 40px 50px;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Шапка */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 50px;
    animation: fadeIn 0.8s ease;
}

.header h1 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -1px;
}

.controls {
    display: flex;
    gap: 15px;
}

.icon-btn {
    background: var(--line-color);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 16px;
    color: var(--text-main);
    text-decoration: none;
    transition: var(--transition);
}

.icon-btn:hover {
    transform: scale(1.05);
    background: var(--text-muted);
    color: var(--bg-color);
}

/* Сетка планера */
.tweek-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 30px;
    animation: fadeIn 1s ease;
}

/* Колонки */
.column {
    display: flex;
    flex-direction: column;
}

.col-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-bottom: 2px solid var(--header-line);
    padding-bottom: 10px;
    margin-bottom: 10px;
}

.date-num {
    font-size: 18px;
    font-weight: 700;
}

.day-name {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Задачи и линии */
.task-list {
    list-style: none;
    display: flex;
    flex-direction: column;
}

.task-item {
    border-bottom: 1px solid var(--line-color);
    min-height: 45px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5px;
    transition: var(--transition);
    group: item;
}

.task-item:hover {
    background-color: var(--hover-bg);
}

.task-text {
    font-size: 14px;
    color: var(--text-main);
    flex: 1;
    cursor: pointer;
    transition: var(--transition);
}

.task-text.done {
    text-decoration: line-through;
    color: var(--text-muted);
}

.task-actions {
    opacity: 0;
    display: flex;
    gap: 10px;
    transition: opacity 0.2s ease;
}

.task-item:hover .task-actions {
    opacity: 1;
}

.action-btn {
    text-decoration: none;
    font-size: 12px;
    color: var(--text-muted);
}

.action-btn:hover {
    color: var(--text-main);
}

/* Форма добавления (скрытая под линию) */
.add-task-form input {
    width: 100%;
    min-height: 45px;
    border: none;
    border-bottom: 1px solid var(--line-color);
    background: transparent;
    color: var(--text-main);
    font-size: 14px;
    font-family: var(--font-family);
    outline: none;
    padding: 0 5px;
    transition: var(--transition);
}

.add-task-form input:focus {
    border-bottom-color: var(--text-main);
}

.add-task-form input::placeholder {
    color: transparent;
    transition: color 0.3s ease;
}

.add-task-form:hover input::placeholder {
    color: var(--text-muted);
}

/* Спец. колонки для выходных и когда-нибудь */
.weekend-split {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.someday-section {
    grid-column: 1 / -1;
    margin-top: 50px;
}

/* Анимации */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}