:root {
    --primary-bg: #f9f9fb;
    --sidebar-bg: #2f3e46;
    --accent: #84a98c;
    --accent-hover: #52796f;
    --text-color: #1e1e1e;
    --sidebar-text: #ffffff;
    --card-bg: #ffffff;
    --border-color: #e0e0e0;
    --input-bg: #f1f3f5;
    --input-border: #ccc;
}

body {
    margin: 0;
    padding: 0;
    display: flex;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-color);
}

h1, h2, p {
    padding: 0;
    margin: 0;
}

.sidebar {
    height: 100vh;
    width: 20%;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding: 1rem;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}

.collections ul {
    list-style: none;
    padding: 0;
}

.app-name {
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

.new-collection label {
    display: block;
    margin-bottom: 0.5rem;
}

.new-collection {
    text-align: center;
    margin-bottom: 2rem;
}

.input {
    /* width: 75%; */
    padding: 0.5rem;
    margin-top: 0.3rem;
    margin-bottom: 0.5rem;
    border: 1px solid var(--input-border);
    border-radius: 4px;
    background-color: var(--input-bg);
}

.button {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.button:hover {
    background-color: var(--accent-hover);
}

.collection {
    display: block;
    color: var(--sidebar-text);
    text-align: center;
    margin: 0.5rem 0;
    padding: 0.5rem;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.collection:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.main-container {
    display: flex;
    flex-direction: column;
    width: 80%;
}

.header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.main {
    display: flex;
    padding: 1rem;
    gap: 1rem;
    flex-wrap: wrap;
    overflow-y: auto;
}

.task-box {
    background-color: var(--card-bg);
    padding: 1rem;
    border-radius: 8px;
    width: 250px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    border: 1px solid var(--border-color);
}

.task-box ul {
    list-style: none;
    padding: 0;
}

.task {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--input-bg);
    margin-bottom: 0.3rem;
}