:root {
    --sbr-radius-modal: 10px;
    --sbr-radius-btn: 50px;
    --sbr-btn-height: 44px;
    --sbr-bottom-spacing: 30px;
}

#sbr-floating-btn {
    position: fixed;
    bottom: var(--sbr-bottom-spacing) !important;
    right: 20px;
    background-color: #f2f2f4;
    color: #606f7b;
    padding: 0 20px;
    height: var(--sbr-btn-height);
    border-radius: var(--sbr-radius-btn);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    z-index: 9990;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid #dcdce0;
    transition: all 0.25s ease;
    max-width: 200px;
    overflow: hidden;
    white-space: nowrap;
    box-sizing: border-box;
}

#sbr-floating-btn:hover,
#sbr-floating-btn:focus-visible {
    background-color: #e6e6e8;
    transform: translateY(-2px);
    outline: 2px solid #0058b7;
    outline-offset: 3px;
}

#sbr-floating-btn svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

#sbr-floating-btn.sbr-scrolled {
    right: 80px;
    width: var(--sbr-btn-height);
    height: var(--sbr-btn-height);
    padding: 0;
    border-radius: 50%;
    justify-content: center;
    gap: 0;
}

#sbr-floating-btn.sbr-scrolled .sbr-text {
    opacity: 0;
    max-width: 0;
    margin: 0;
    pointer-events: none;
    display: none;
}

.sbr-text {
    opacity: 1;
    max-width: 150px;
    transition: opacity 0.2s, max-width 0.25s;
}

.sbr-hidden {
    display: none !important;
}

#sbr-modal-overlay {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(2px);
}

#sbr-modal {
    background: #fff;
    width: min(90%, 450px);
    border-radius: var(--sbr-radius-modal);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    animation: sbrFadeIn 0.25s ease;
}

@keyframes sbrFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.sbr-header {
    background: #f4f4f4;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #ddd;
}

.sbr-header h3 {
    margin: 0;
    font-size: 16px;
    color: #333;
    font-weight: 700;
}

#sbr-close-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: #666;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
    margin-right: -4px;
}

#sbr-close-btn:hover,
#sbr-close-btn:focus-visible {
    color: #e30613;
    outline: 2px solid #0058b7;
    outline-offset: 3px;
}

#sbr-close-btn svg {
    width: 20px;
    height: 20px;
}

.sbr-body {
    padding: 20px;
}

.sbr-desc {
    font-size: 13px;
    color: #666;
    margin: 0 0 15px;
}

#sbr-form label {
    display: block;
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 5px;
    color: #333;
}

#sbr-form input[type="url"],
#sbr-form textarea,
#sbr-submit-btn {
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
    border-radius: var(--sbr-radius-modal);
    font-size: 14px;
    display: block;
}

#sbr-form input[type="url"],
#sbr-form textarea {
    margin-bottom: 15px;
    border: 1px solid #ccc;
}

#sbr-form input[type="url"]:focus,
#sbr-form textarea:focus {
    outline: 2px solid #0058b7;
    outline-offset: 2px;
}

#sbr-form textarea {
    height: 100px;
    resize: vertical;
}

#sbr-submit-btn {
    background-color: #e30613;
    color: #fff;
    border: none;
    cursor: pointer;
    font-weight: 700;
    margin-top: 15px;
    transition: background 0.2s;
    text-align: center;
}

#sbr-submit-btn:hover,
#sbr-submit-btn:focus-visible {
    background-color: #b5050f;
    outline: 2px solid #0058b7;
    outline-offset: 3px;
}

#sbr-submit-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

#sbr-response-msg {
    margin-top: 10px;
    font-size: 13px;
    text-align: center;
}

.sbr-success {
    color: #087f23;
}

.sbr-error {
    color: #b5050f;
}

@media (max-width: 600px) {
    #sbr-floating-btn {
        bottom: 25px !important;
        right: 20px !important;
        width: var(--sbr-btn-height) !important;
        height: var(--sbr-btn-height) !important;
        padding: 0 !important;
        border-radius: 50% !important;
        justify-content: center !important;
        gap: 0 !important;
    }

    #sbr-floating-btn .sbr-text {
        display: none !important;
    }

    #sbr-floating-btn.sbr-scrolled {
        right: 80px !important;
        bottom: 25px !important;
    }
}