/* Custom CSS for Bootstrap Version */
:root {
    --primary-color: #6f42c1; /* Bootstrap Purple */
    --secondary-color: #fd7e14; /* Bootstrap Orange */
    --success-color: #198754;
    --danger-color: #dc3545;
    --light-bg: #f8f9fa;
    --dark-text: #212529;
}

body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(to right, #e0c3fc, #8ec5fc); /* Soft gradient background */
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start; /* Align to top for longer lists */
    padding-top: 50px;
    color: var(--dark-text);
}

#app {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    width: 100%;
}

h1 {
    font-family: 'Pacifico', cursive;
    color: var(--primary-color);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px !important;
}

.input-group .form-control {
    border-color: var(--primary-color);
    box-shadow: none;
    transition: border-color 0.3s ease;
}

.input-group .form-control:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.25rem rgba(111, 66, 193, 0.25);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.list-group-item {
    background-color: var(--light-bg);
    border: 1px solid rgba(0, 0, 0, 0.1);
    margin-bottom: 10px;
    border-radius: 8px;
    transition: all 0.3s ease;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.list-group-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.list-group-item.completed {
    background-color: #e9f7ef; /* Light green for completed tasks */
    text-decoration: line-through;
    color: #6c757d;
    border-left: 5px solid var(--success-color);
    opacity: 0.8;
}

.todo-text {
    flex-grow: 1;
    margin-right: 15px;
    word-break: break-word; /* Prevents long words from overflowing */
}

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
}
.btn-outline-success {
    color: var(--success-color);
    border-color: var(--success-color);
}
.btn-outline-success:hover {
    background-color: var(--success-color);
    color: white;
}

.btn-danger {
    background-color: var(--danger-color);
    border-color: var(--danger-color);
}

.btn-warning {
    background-color: #ffc107;
    border-color: #ffc107;
    color: #000;
}

.btn-warning:hover {
    background-color: #ffcd39;
    border-color: #ffc720;
    color: #000;
}

.btn-sm {
    padding: .3rem .75rem;
    font-size: .875rem;
    line-height: 1.5;
    border-radius: .2rem;
}