:root {
    --primary-color-b: #33005a;
    --primary-color-f: #fbedff;

    --secondary-color-b: #fdf5ff;
    --secondary-color-b2: #efd8f5;
    --secondary-color-f-h1: #6600b5;

    --secondary-color-f-p: #33005a;

    --page-font: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;

    --color-red-dark: #cc0000;
    --color-red-main: #ff4d4d;
    --color-red-light: #ffc6c6;
}
html,
body {
    margin: 0;
    padding: 0;
    font-family: var(--page-font);
    background-color: var(--primary-color-b);
}
body {
    height: min(100dvh, 100vh);
    display: flex;
    flex-direction: column;
}
header {
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    background-color: var(--primary-color-b);
    color: var(--primary-color-f);
    position: sticky;
    top: 0;
}
footer {
    display: flex;
    justify-content: center;
    padding: 20px;
    background-color: var(--primary-color-b);
    color: var(--primary-color-f);
}
main {
    padding: 20px;
    flex: 1;
    background-color: var(--secondary-color-b);
    color: var(--secondary-color-f-h1);
    width: 100%;
    display: flex;
    flex-direction: column;
}
h1 {
    font-size: 2rem;
}
main h1 {
    font-size: 3rem;
    margin: 1rem;
}
main p {
    color: var(--secondary-color-f-p);
    font-size: 1.3rem;
    margin-left: 1rem;
}
div.dialogbox {
    display: grid;
    grid-template-columns: 3fr 1fr;
    grid-template-rows: 2rem;
    gap: 10px;
    margin: 1rem;
    background-color: var(--secondary-color-b2);
    padding: 10px;
    border-radius: 10px;
}
div.dialogbox * {
   border-radius: 10px;
   border: 0;
}
div.dialogbox input {
    font-size: 1.5rem;
    padding-left: 1rem;
}
div.dialogbox button {
    background-color: var(--primary-color-b);
    color: var(--primary-color-f);
    font-size: 1.3rem;
    cursor: pointer;
    font-weight: bold;
}
div.dialogbox button:hover {
    transform: scale(1.05);
}
div.dialogbox button:active {
    transform: scale(0.95);
}
div.list {
    margin: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background-color: var(--secondary-color-b2);
    padding: 1rem;
    border-radius: 10px;
}
div.list h2 {
    margin: 0;
    color: var(--secondary-color-f-h1);
    font-size: 2rem;
}
div.list ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
div.list ul >li >input[type="checkbox"] {
    margin-right: 0.5rem;
    transform: scale(1.5);
    cursor: pointer
}
div.list ul >li >span {
    margin: 0 0 0 .5rem;
    flex: 1;
    font-size: 1.5rem;
    word-break: break-all;
    word-wrap: break-word;
    color: var(--secondary-color-f-p);
}
div.list ul >li >span.completed {
    text-decoration: line-through;
    color: var(--secondary-color-f-h1);
}
div.list ul >li >button {
    background-color: transparent;
    color: var(--color-red-dark);
    border: 0;
    top: 0;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.2rem 0.8rem;
    border-radius: 10px;
    transition: all 0.2s ease;
}
div.list ul >li >button:hover {
    color: var(--color-red-light);
    background-color: var(--color-red-dark);
    transform: scale(1.1);
}
div.list ul >li {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
div.utils {
    display: block;

    margin: 1rem;
    background-color: var(--secondary-color-b2);
    padding: 1rem;
    border-radius: 10px;
}
div.utils button {
    background-color: var(--primary-color-b);
    color: var(--primary-color-f);
    border: 0;
    padding: 0.5rem 1rem;
    font-size: 1.2rem;
    cursor: pointer;
    border-radius: 10px;
    font-weight: bold;
    margin: .25rem .25rem;
}
div.utils button:hover {
    transform: scale(1.05);
}
div.utils button:active {
    transform: scale(0.95);
}

footer {
    font-size: 0.9rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
}

/* mobile support */
@media (max-width: 600px) {
    header h1 {
        font-size: 1.5rem;
    }
    main h1 {
        font-size: 2rem;
    }
    main p {
        font-size: 1rem;
    }
    div.dialogbox {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto;
    }
    div.dialogbox * {
        width: 100%;
    }
    div.dialogbox >button {
        padding: 0.5rem 0;
    }
    div.list ul >li >span {
        font-size: 1.2rem;
    }
    div.utils {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }
    div.utils >button {
        margin: .25rem;
        width: 100%;
    }
}

* {
    box-sizing: border-box;
}