:root {
    --bg-color: #ffffff;
    --container-bg: #f9f9f9;
    --text-color: #000000;
    --accent-color: #000000;
    --accent-text: #ffffff;
    --border-color: #eeeeee;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/*Dark Theme*/
body.dark-theme {
    --bg-color: #000000;
    --container-bg: #111111;
    --text-color: #ffffff;
    --accent-color: #ffffff;
    --accent-text: #000000;
    --border-color: #222222;
    --shadow: 0 4px 20px rgba(255, 255, 255, 0.05);
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    transition: all 0.3s ease;
    margin: 0;
    display: flex;
    justify-content: center;
    padding-top: 50px;
}

.container {
    background: var(--container-bg);
    width: 90%;
    max-width: 450px;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

h1 {
    margin-top: 0;
    font-weight: 800;
}

/*Inputs & Buttons*/

.input-group {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#taskInput {
    flex: 1;
}

input, select {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 12px;
    border-radius: 10px;
    outline: none;
    transition: border 0.2s;
}

input:focus, select:focus {
    border-color: var(--text-color);
}

button {
    background-color: var(--accent-color);
    color: var(--accent-text);
    border: none;
    padding: 12px 20px;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.1s, opacity 0.2s;
}

button:hover {
    opacity: 0.8;
}

button:active {
    transform: scale(0.95);
}

/*Task layout*/
#taskList {
    padding: 0;
}

li {
    list-style: none;
    background: var(--bg-color);
    margin-bottom: 15px;
    padding: 15px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.task-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.task-text {
    flex: 1;
    font-size: 1.1rem;
    cursor: pointer;
    margin: 0 10px;
}

.completed .task-text {
    text-decoration: line-through;
    opacity: 0.4;
}

/*Date/Priority Styles*/
/* Date Styles */
.task-footer {
    display: flex;
    gap: 10px;
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px dashed var(--border-color);
    align-items: center;
}

.due-date-picker {
    padding: 6px 10px;
    font-size: 0.85rem;
    border-radius: 8px;
    background-color: var(--container-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    outline: none;
}

.due-date-picker:hover {
    border-color: var(--text-color);
}

.delete-btn {
    background: transparent;
    border: 1px solid #ff5f56;
    color: #ff5f56;
    padding: 5px 12px;
    font-size: 0.8rem;
}

.delete-btn:hover {
    background: #ff5f56;
    color: white;
    opacity: 1;
}

/*Color Palette*/
.color-palette {
    display: flex;
    gap: 5px;
}

.color-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.1s ease;
}

.color-dot:hover {
    transform: scale(1.3);
}

.color-default { background-color: #888; }
.color-red     { background-color: #ff5f56; }
.color-blue    { background-color: #2781ff; }
.color-green   { background-color: #28c840; }

.task-red   { border-left: 6px solid #ff5f56 !important; }
.task-blue  { border-left: 6px solid #2781ff !important; }
.task-green { border-left: 6px solid #28c840 !important; }

/*Theme Toggle*/
#themeToggle {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 0.8rem;
    padding: 5px 10px;
    margin-bottom: 10px;
    float: right;
}

#statusContainer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    font-size: 0.9rem;
    opacity: 0.7;
}

.clear-btn {
    background: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    font-size: 0.8rem;
    padding: 6px 12px;
}

/*Edit Input*/
.edit-input {
    flex: 1;
    margin: 0 10px;
    padding: 5px;
    font-size: 1.1rem;
    background: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    flex: 1;
    margin: 0 10px;
    padding: 5px;
    font-size: 1.1rem;
}