/* General Body and Layout */
body {
    font-family: 'Inter', sans-serif;
    background-color: #f0f4f8; /* Light blue-gray background */
    color: #334155; /* Darker text */
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Card Styles */
.card {
    background-color: #ffffff;
    border-radius: 0.75rem; /* Rounded corners */
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Button Styles */
.button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: background-color 0.3s ease;
}
.button-primary {
    background-color: #3b82f6; /* Blue */
    color: #ffffff;
}
.button-primary:hover {
    background-color: #2563eb; /* Darker blue on hover */
}
.button-secondary {
    background-color: #e2e8f0; /* Light gray */
    color: #334155;
}
.button-secondary:hover {
    background-color: #cbd5e1; /* Darker gray on hover */
}

/* Styles for the To-Do List */
.todo-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid #e2e8f0;
}
.todo-item:last-child {
    border-bottom: none;
}
.todo-item.completed span {
    text-decoration: line-through;
    color: #64748b;
}
.todo-item input[type="checkbox"] {
    margin-right: 0.75rem;
    transform: scale(1.2); /* Slightly larger checkbox */
}
.todo-item button {
    background: none;
    border: none;
    color: #ef4444; /* Red for delete */
    cursor: pointer;
    font-size: 1.25rem; /* Larger icon */
    padding: 0.25rem;
    border-radius: 0.25rem;
    transition: background-color 0.2s ease;
}
.todo-item button:hover {
    background-color: #fee2e2; /* Light red background on hover */
}
.todo-input-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.todo-input-group input {
    flex-grow: 1;
    padding: 0.75rem;
    border: 1px solid #cbd5e1;
    border-radius: 0.5rem;
}

/* Form Specific Styles (for contact and login forms) */
.space-y-4 > div {
    margin-bottom: 1rem; /* Spacing between form groups */
}
.space-y-4 label {
    display: block;
    margin-bottom: 0.25rem;
}
.space-y-4 input[type="text"],
.space-y-4 input[type="email"],
.space-y-4 input[type="password"],
.space-y-4 textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #cbd5e1;
    border-radius: 0.5rem;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.05);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.space-y-4 input:focus,
.space-y-4 textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}
.text-red-500 {
    color: #ef4444;
}
.text-green-500 {
    color: #22c55e;
}

/* Table Specific Styles */
.table-container {
    overflow-x: auto; /* Ensures table is scrollable on small screens */
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 700px; /* Ensure table doesn't get too narrow */
}
.data-table th, .data-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}
.data-table th {
    background-color: #f8fafc; /* Light background for headers */
    font-weight: 600;
    color: #475569;
    cursor: pointer; /* Indicate sortable headers */
    position: relative;
}
.data-table th:hover {
    background-color: #f1f5f9;
}
.data-table th .sort-icon {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8em;
    color: #94a3b8;
}
.data-table th.asc .sort-icon::after {
    content: ' ▲';
    color: #3b82f6;
}
.data-table th.desc .sort-icon::after {
    content: ' ▼';
    color: #3b82f6;
}
.data-table tbody tr:hover {
    background-color: #f8fafc;
}
.data-table tbody tr:last-child td {
    border-bottom: none;
}