.wtsm-slot-booking-container {
        max-width: 500px;
        margin: 0 auto;
        padding: 2rem;
        background: #ffffff;
        border-radius: 12px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    }

    .wtsm-form-header {
        margin-bottom: 1.5rem;
        text-align: center;
    }

    .wtsm-form-title {
        margin: 0 0 0.5rem;
        color: #1a1a1a;
        font-size: 1.5rem;
        font-weight: 600;
    }

    .wtsm-form-description {
        margin: 0;
        color: #666;
        font-size: 0.9rem;
    }

    .wtsm-form-group {
        margin-bottom: 1.5rem;
    }

    .wtsm-label {
        display: block;
        margin-bottom: 0.5rem;
        color: #333;
        font-size: 0.9rem;
        font-weight: 500;
    }

    .wtsm-label-text {
        vertical-align: middle;
    }

    .wtsm-required {
        color: #d63638;
        margin-left: 0.25rem;
    }

    .wtsm-input-container {
        position: relative;
    }

    .wtsm-date-input {
        width: 100%;
        padding: 0.75rem 1rem 0.75rem 2.5rem;
        border: 1px solid #ddd;
        border-radius: 8px;
        background-color: #f9f9f9;
        font-size: 1rem;
        transition: all 0.2s ease;
    }

    .wtsm-date-input:focus {
        outline: none;
        border-color: #2271b1;
        box-shadow: 0 0 0 2px rgba(34, 113, 177, 0.25);
        background-color: #fff;
    }

    .wtsm-icon-calendar {
        position: absolute;
        left: 1rem;
        top: 50%;
        transform: translateY(-50%);
        color: #666;
    }

    .wtsm-icon-calendar:before {
        content: "📅";
    }

    .wtsm-day-display {
        margin: 1.5rem 0;
    }

    .wtsm-day-card {
        display: inline-flex;
        align-items: center;
        padding: 0.75rem 1.25rem;
        background-color: #f0f6fc;
        border-radius: 8px;
        border-left: 4px solid #2271b1;
    }

    .wtsm-day-label {
        margin-right: 0.5rem;
        color: #555;
        font-size: 0.9rem;
    }

    .wtsm-day-name {
        font-weight: 600;
        color: #2271b1;
    }

    .wtsm-slots-section {
        margin: 2rem 0;
    }

    .wtsm-slots-title {
        margin: 0 0 1rem;
        color: #333;
        font-size: 1rem;
        font-weight: 600;
    }

    .wtsm-slots-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
        gap: 0.75rem;
    }

    .wtsm-slot-option {
        display: block;
        cursor: pointer;
    }

    .wtsm-slot-radio {
        position: absolute;
        opacity: 0;
    }

    .wtsm-slot-time {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: 0.75rem;
        background: #fff;
        border: 1px solid #ddd;
        border-radius: 8px;
        transition: all 0.2s ease;
        height: 100%;
        position: relative;
    }

    .wtsm-slot-time-text {
        font-size: 0.95rem;
        font-weight: 500;
        color: #333;
    }

    .wtsm-slot-checkmark {
        display: none;
        width: 20px;
        height: 20px;
        background-color: #2271b1;
        border-radius: 50%;
        position: absolute;
        top: -8px;
        right: -8px;
    }

    .wtsm-slot-checkmark:before {
        content: "✓";
        color: white;
        font-size: 12px;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
    }

    .wtsm-slot-radio:checked + .wtsm-slot-time {
        background-color: #f0f6fc;
        border-color: #2271b1;
        box-shadow: 0 0 0 1px #2271b1;
    }

    .wtsm-slot-radio:checked + .wtsm-slot-time .wtsm-slot-checkmark {
        display: block;
    }

    .wtsm-no-slots {
        grid-column: 1 / -1;
        text-align: center;
        padding: 2rem 1rem;
        background-color: #f9f9f9;
        border-radius: 8px;
        color: #666;
    }

    .wtsm-no-slots p {
        margin: 0.5rem 0 0;
    }

    .wtsm-icon-clock:before {
        content: "⏰";
        font-size: 1.5rem;
    }

    .wtsm-selected-display {
        margin: 1.5rem 0;
    }

    .wtsm-selected-card {
        display: inline-flex;
        align-items: center;
        padding: 0.75rem 1.25rem;
        background-color: #f5f5f5;
        border-radius: 8px;
    }

    .wtsm-selected-label {
        margin-right: 0.5rem;
        color: #555;
        font-size: 0.9rem;
    }

    .wtsm-selected-slot {
        font-weight: 600;
        color: #2271b1;
    }

    .wtsm-submit-container {
        margin-top: 2rem;
    }

    .wtsm-submit-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        padding: 0.875rem 1.5rem;
        background-color: #2271b1;
        color: white;
        border: none;
        border-radius: 8px;
        font-size: 1rem;
        font-weight: 500;
        cursor: pointer;
        transition: all 0.2s ease;
    }

    .wtsm-submit-btn:hover {
        background-color: #135e96;
        transform: translateY(-1px);
    }

    .wtsm-submit-btn:active {
        transform: translateY(0);
    }

    .wtsm-btn-text {
        margin-right: 0.5rem;
    }

    .wtsm-icon-arrow:before {
        content: "→";
    }

    .wtsm-notice {
        padding: 0.75rem 1rem;
        margin-bottom: 1.5rem;
        border-radius: 4px;
        font-size: 0.9rem;
    }

    .wtsm-notice-success {
        background-color: #edfaef;
        border-left: 4px solid #00a32a;
        color: #1d2327;
    }

    .wtsm-notice-error {
        background-color: #fcf0f1;
        border-left: 4px solid #d63638;
        color: #1d2327;
    }

    @media (max-width: 480px) {
        .wtsm-slot-booking-container {
            padding: 1.5rem;
            border-radius: 0;
        }
        
 .wtsm-slots-grid {
            grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
        }
    }