* {
    font-family: "Inter", sans-serif;
    font-optical-sizing: auto;
    font-style: normal;
}

/* Neon checkbox */
.neon-checkbox {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    min-width: 20px;
    border: 2px solid #2AAEB6;
    border-radius: 5px;
    background: rgba(11, 10, 78, 0.6);
    box-shadow: 0 0 6px rgba(42, 174, 182, 0.4);
    cursor: pointer;
    display: inline-grid;
    place-content: center;
    transition: all 0.2s ease;
}

.neon-checkbox:hover {
    border-color: #EA00D9;
    box-shadow: 0 0 10px rgba(42, 174, 182, 0.7);
}

.neon-checkbox:checked {
    background-color: #EA00D9;
    border-color: #EA00D9;
    box-shadow: 0 0 12px rgba(234, 0, 217, 0.8);
}

.neon-checkbox:checked::after {
    content: '✓';
    color: #0B0A4E;
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
}

.neon-checkbox:focus-visible {
    outline: 2px solid #2AAEB6;
    outline-offset: 2px;
}

/* Inline edit input */
.edit-input {
    flex-grow: 1;
    margin-left: 10px;
    padding: 4px 8px;
    font-size: 1.125rem;
    font-family: inherit;
    color: #2AAEB6;
    background: #080A4E;
    border: 2px solid #EA00D9;
    border-radius: 8px;
    outline: none;
    box-shadow: 0 0 10px rgba(234, 0, 217, 0.4);
}

/* Drag & drop feedback */
#taskList li.dragging {
    opacity: 0.4;
    outline: 2px dashed #EA00D9;
    outline-offset: -2px;
    border-radius: 8px;
}

#taskList li.drag-over {
    outline: 2px dashed #2AAEB6;
    outline-offset: -2px;
    border-radius: 8px;
}

/* Inline validation */
#validationMessage {
    display: none;
}

#validationMessage.visible {
    display: block;
}

#taskInput.input-error {
    border-color: #f87171;
    box-shadow: 0 0 12px rgba(248, 113, 113, 0.5);
}