body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    transition: 0.3s;
}

body.dark {
    background: #1e1e1e;
    color: white;
}

.container {
    width: 90%;
    max-width: 800px;
    background: white;
    margin: 40px auto;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0px 4px 15px rgba(0,0,0,0.1);
    transition: 0.3s;
}

body.dark .container {
    background: #2b2b2b;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#darkToggle {
    padding: 8px 12px;
    border-radius: 8px;
    border: none;
    font-size: 18px;
    cursor: pointer;
}

.input-area {
    display: flex;
    gap: 10px;
    margin: 20px 0;
}

input, button, select {
    padding: 10px;
    font-size: 16px;
    border-radius: 6px;
    border: 2px solid #ddd;
}

button {
    background: #4a90e2;
    color: white;
    cursor: pointer;
    border: none;
}

button:hover {
    background: #1473e6;
}

.controls {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    background: #4a90e2;
    color: white;
    padding: 10px;
}

td {
    padding: 12px;
    border-bottom: 1px solid #ddd;
}

.status-pending {
    color: #cc7a00;
    font-weight: bold;
}

.status-completed {
    color: #2e8b57;
    font-weight: bold;
}

.action-btn {
    padding: 6px 10px;
    border-radius: 5px;
    color: white;
    border: none;
    cursor: pointer;
}

.complete-btn { background: #2e8b57; }
.edit-btn { background: #ffc107; color: black; }
.delete-btn { background: #d9534f; }

tr {
    animation: fadeIn 0.4s ease;
}

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

/* Dark mode table */
body.dark th {
    background: #111;
}
body.dark td {
    border-bottom: 1px solid #444;
}