body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #111827;
    color: #f9fafb;
}

.app {
    max-width: 520px;
    margin: 40px auto;
    padding: 24px;
}

.wide {
    max-width: 1100px;
}

h1 {
    text-align: center;
    font-size: 2.2rem;
}

h2 {
    text-align: center;
    font-size: 1.6rem;
}

h3 {
    text-align: center;
    font-size: 1.2rem;
}

h4 {
    text-align: center;
    font-size: 1rem;
}

.tagline {
    opacity: 0.75;
    margin-top: -10px;
    margin-bottom: 24px;
}

.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}

.panel {
    background: #111827;
    border: 1px solid #374151;
    border-radius: 18px;
    padding: 20px;
}

.panel h2 {
    margin-top: 0;
}

.add-form {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
    align-items: end;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}

.field label {
    font-size: 0.85rem;
    opacity: 0.8;
    font-weight: bold;
}

input,
select,
textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 14px;
    border-radius: 10px;
    border: none;
    font-size: 1rem;
}

button {
    padding: 14px 18px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    cursor: pointer;
}

.add-form button,
.note-form button {
    background: #22c55e;
    color: white;
}

.item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #1f2937;
    margin-bottom: 10px;
    padding: 14px;
    border-radius: 12px;
}

.item.done span {
    text-decoration: line-through;
    opacity: 0.5;
}

.check {
    background: transparent;
    padding: 0;
    font-size: 1.3rem;
}

.clear {
    width: 100%;
    background: #ef4444;
    color: white;
    margin-top: 20px;
}

.empty {
    text-align: center;
    opacity: 0.7;
}

.nav {
    text-align: center;
    margin-top: 25px;
}

a {
    color: #93c5fd;
}

small {
    display: block;
    opacity: 0.6;
    margin-top: 4px;
}

.notes {
    margin-top: 22px;
}

.note-form {
    display: grid;
    gap: 10px;
}

textarea {
    min-height: 90px;
}

.note {
    background: #1f2937;
    border-radius: 12px;
    padding: 14px;
    margin-top: 12px;
}

.note p {
    margin: 8px 0;
}

.quick-add {
    margin: 15px 0 20px;
}

.quick-add h3 {
    margin-bottom: 10px;
}

.quick-form {
    display: inline-block;
    margin: 4px;
}

.quick-form button {
    background: #374151;
    color: #f9fafb;
    padding: 10px 14px;
    font-size: 0.95rem;
}

.quick-form button:hover {
    background: #4b5563;
}

/* Mobile cleanup */
@media (max-width: 800px) {
    body {
        font-size: 18px;
    }

    .app {
        margin: 0;
        padding: 10px;
        max-width: none;
        width: 100%;
        box-sizing: border-box;
    }

    h1 {
        font-size: 1.8rem;
        margin-bottom: 8px;
    }

    h2 {
        font-size: 1.55rem;
    }

    h3 {
        font-size: 1.15rem;
    }

    .grid {
        display: block;
    }

    .panel {
        width: 100%;
        box-sizing: border-box;
        margin-bottom: 18px;
        padding: 18px;
        border-radius: 16px;
    }

    .notes {
        margin-top: 0;
    }

    .add-form {
        flex-direction: column;
        align-items: stretch;
    }

    input,
    select,
    textarea,
    button {
        font-size: 1.05rem;
    }

    button {
        width: 100%;
        min-height: 52px;
    }

    .quick-form {
        display: block;
        margin: 8px 0;
    }

    .quick-form button {
        width: 100%;
        min-height: 48px;
    }

    .item {
        align-items: flex-start;
        font-size: 1.05rem;
    }

    .check {
        width: auto;
        min-height: auto;
        font-size: 1.5rem;
    }

    small {
        font-size: 0.9rem;
    }
}