body{
    display: flex;
    justify-content: center;
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f5f5;
}

.app {
    width: 100%;
    max-width: 500px;
    margin-top: 50px;
}

.task-container {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    margin-top: 10px;
}

/* Input and add button */
#taskInput {
    width: 70%;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #ccc;
}

#addBtn {
    padding: 10px 15px;
    border: none;
    border-radius: 8px;
    background: black;
    color: white;
}

/* Filter button */
.filters {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.filters button {
    padding: 6px 12px;
    border: 1px solid #ccc;
    background: transparent;
    border-radius: 20px;
}

.filters button.active {
    background: black;
    color: white;
}

span {
    cursor: pointer;
    margin-right: 50px;
}

span:hover {
    opacity: 0.8;
}

.completed {
    text-decoration: line-through;
    color: gray;
    opacity: 0.6;
    transition: all 0.2s ease;
}

li button{
    opacity: 0;    
    transition: opacity 0.2s ease;
}

li:hover button{
    opacity: 1;
}

button {
    cursor: pointer;
}

#taskList {
    display: flex;
    flex-direction: column;
    gap: 1rem; /* vertical spacing between tasks */
    padding: 10px;
    list-style: decimal;
}



.editing {
    background-color: #f0f0f0;
}

.editing input {
    width: 100%;
    padding: 5px;
    font-size: 16px;
}

/* Transitions */
li {
    /* Style */
    background: #fafafa;
    padding: 10px 15px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;

    /* Animation */
    margin-left: 20px;
    transition: all 0.2s ease;
    animation: fadeIn 0.2s ease;
}

li:hover {
    transform: scale(1.02);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Toggle dark mode */
body.dark {
    background-color: #121212;
    color: white;
}

body.dark .task-container {
    background: #1e1e1e;
}

body.dark li {
  background-color: #2a2a2a;
}

body.dark input {
  background-color: #2a2a2a;
  color: white;
}

body.dark button{
    background: #333;
    color: white;
}

body.dark #addBtn {
    background: white;
    color: black;
}

body.dark .filters button.active {
    background: white;
    color: black;
}

/* Header polish */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.listButtons {
    display: flex;
    flex-direction: row;
    gap: 5px;
}

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

/* ===================== MOBILE-FRIENDLY FIX ===================== */
@media (max-width: 480px), (hover: none) {
    /* Stack input and add button */
    .input-group {
        flex-direction: column;
    }

    #taskInput,
    #addBtn {
        width: 100%;
        font-size: 14px;
        padding: 10px;
    }

    /* Task items smaller */
    li {
        font-size: 14px;
        padding: 8px 10px;
    }

    /* Always show edit & delete buttons on touch/mobile */
    li > .listButtons > button {
        opacity: 1 !important;
        pointer-events: auto;
        font-size: 16px;
        padding: 5px 8px;
    }

    /* Filter buttons smaller on mobile */
    .filters button {
        padding: 5px 10px;
        font-size: 14px;
    }
}