To-Do-List/style.css at main · N-thnI/To-Do-List · GitHub

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/* 1. THEME VARIABLES */
:root {
    /* Dark Mode (Default) */
    --bg-body: #121212;
    --bg-app: #1e1e1e;
    --text-main: #ffffff;
    --text-dim: #a0a0a0;
    --input-bg: #2a2a2a;
    --accent: #00ff88;
    --delete: #ff4444;
}

body.light-mode {
    /* Light Mode Palette */
    --bg-body: #f4f4f9;
    --bg-app: #ffffff;
    --text-main: #1e1e1e;
    --text-dim: #666666;
    --input-bg: #eeeeee;
    --accent: #008f5d;
    --delete: #cc0000;
}

/* 2. BASE STYLES */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, sans-serif;
}

body {
    background: var(--bg-body);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    transition: background 0.3s ease, color 0.3s ease;
}

/* 3. APP CONTAINER */
.container {
    width: 100%;
    max-width: 450px;
    padding: 20px;
    position: relative;
}

.todo-app {
    background: var(--bg-app);
    padding: 40px 30px;
    border-radius: 24px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.4);
    transition: background 0.3s ease;
}

.todo-app h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 25px;
}

/* 4. THEME TOGGLE BUTTON */
#theme-btn {
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--input-bg);
    border: 1px solid var(--accent);
    color: var(--text-main);
    padding: 8px 12px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.2s;
}

#theme-btn:hover {
    transform: scale(1.1);
}

/* 5. INPUT ROW */
.row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--input-bg);
    border-radius: 30px;
    padding-left: 20px;
    margin-bottom: 25px;
}

input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text-main);
    padding: 15px 0;
    font-size: 16px;
}

button.add-btn {
    border: none;
    outline: none;
    padding: 16px 35px;
    background: var(--accent);
    color: #000;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    border-radius: 30px;
}

/* 6. TASK LIST ITEMS */
ul li {
    list-style: none;
    font-size: 17px;
    padding: 12px 45px 12px 40px;
    user-select: none;
    cursor: pointer;
    position: relative;
    border-bottom: 1px solid var(--input-bg);
}

/* Custom Checkbox Circle */
ul li::before {
    content: '';
    position: absolute;
    height: 22px;
    width: 22px;
    border-radius: 50%;
    border: 2px solid var(--accent);
    left: 5px;
    top: 50%;
    transform: translateY(-50%);
    transition: 0.2s;
}

/* Checked State */
ul li.checked {
    color: var(--text-dim);
    text-decoration: line-through;
}

ul li.checked::before {
    background: var(--accent);
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="white"><path d="M20.285 2l-11.285 11.567-5.286-5.011-3.714 3.716 9 8.728 15-15.285z"/></svg>');
    background-size: 12px;
    background-repeat: no-repeat;
    background-position: center;
}

/* 7. DELETE BUTTON (SPAN) */
ul li span {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    font-size: 20px;
    color: var(--delete);
    line-height: 30px;
    text-align: center;
    border-radius: 50%;
    transition: 0.2s;
}

ul li span:hover {
    background: rgba(255, 68, 68, 0.1);
    color: var(--delete);
}