body {
    font-family: Arial, sans-serif;
    background: #03574f;
    margin: 0;
    padding: 0;
    color: #fff;
}

.todo-container {
    width: 600px;
    margin: 80px auto;
    background: #026d63;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    text-align: center;
}

h1 {
    margin-bottom: 20px;
    color: #6ee7b7;
    font-size: 32px;
    text-shadow: 2px 2px 6px #014d43, 0 0 10px rgba(1, 77, 67, 0.9);
}

.todo-form {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    justify-content: center;
}

#task-input,
#date-input {
    width: 250px;
    height: 42px;
    padding: 0 10px;
    border-radius: 6px;
    border: 1px solid #059669;
    background: #014d43;
    color: #d1fae5;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

#task-input:invalid:not(:focus),
#date-input:invalid:not(:focus) {
    border: 2px solid #ef4444; /* Warna merah */
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.7);
}

#task-input::placeholder,
#date-input::placeholder {
    color: #6ee7b7;
}

.date-wrapper i {
    display: none;
}

.btn {
    padding: 10px 15px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-weight: bold;
    transition: 0.3s;
}

.add-btn {
    background: #10b981;
    color: #fff;
    font-size: 20px;
    width: 50px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.add-btn:hover {
    background: #047857;
}

.actions {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
}

.btn.danger {
    background: #ef4444;
    color: #fff;
}

.btn.danger:hover {
    background: #dc2626;
}

.todo-table {
    width: 100%;
    border-collapse: collapse;
    background: #013b35;
    border-radius: 8px;
    overflow: hidden;
}

.todo-table th,
.todo-table td {
    padding: 12px;
    text-align: center;
    border-bottom: 1px solid #065f46;
    color: #d1fae5;
}

.todo-table th {
    background: #059669;
    font-weight: bold;
    color: #fff;
}

.todo-table tr:hover {
    background: #03695f;
}

.empty {
    text-align: center;
    color: #6ee7b7;
    padding: 20px;
}

.status {
    font-size: 12px;
    font-weight: bold;
    padding: 5px 10px;
    border-radius: 20px;
}

.status.pending {
    background: #fbbf24;
    color: #000;
}

.status.done {
    background: #34d399;
    color: #000;
}

.action-btn {
    padding: 5px 10px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    margin: 0 2px;
    font-size: 12px;
}

.action-btn.delete {
    background: #ef4444;
    color: #fff;
}

.action-btn.done {
    background: #10b981;
    color: #fff;
}

.action-btn.done:disabled {
    background: #047857;
    cursor: not-allowed;
    opacity: 0.7;
}

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown .btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background: #10b981;
    color: #fff;
    padding: 8px 12px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
}

.dropdown .btn:hover {
    background: #047857;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #026d63;
    border: 1px solid #059669;
    border-radius: 6px;
    margin-top: 5px;
    min-width: 120px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    display: none;
    flex-direction: column;
    width: max-content;
    z-index: 100;
}

.dropdown-menu.show {
    display: flex;
}

.dropdown-menu .dropdown-item {
    padding: 10px 15px;
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    color: #d1fae5;
    cursor: pointer;
    transition: background 0.3s;
}

.dropdown-menu .dropdown-item:hover {
    background: #065f46;
}

.flatpickr-calendar {
    background: #014d43;
    color: #d1fae5;
    border: 1px solid #059669;
}

@media (max-width: 650px) {
    .todo-container {
        width: 95%;
    }

    .todo-form {
        flex-direction: column;
    }

    #task-input,
    #date-input,
    .add-btn {
        width: 100%;
    }
}