.support-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    border: none;
    background: linear-gradient(135deg, #4F46E5, #6366F1);
    color: #fff;
    font-size: 1.35rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(79, 70, 229, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    z-index: 1080;
}

.support-fab:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 24px rgba(79, 70, 229, 0.45);
}

.support-fab.active {
    transform: scale(0);
    pointer-events: none;
}

.support-panel {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 360px;
    max-height: 520px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.15);
    z-index: 1090;
    display: flex;
    flex-direction: column;
    transform: scale(0.8) translateY(20px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.2s ease;
    transform-origin: bottom right;
}

.support-panel.open {
    transform: scale(1) translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.support-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: linear-gradient(135deg, #4F46E5, #6366F1);
    color: #fff;
    border-radius: 16px 16px 0 0;
    flex-shrink: 0;
}

.support-panel-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 6px;
    transition: background 0.15s ease, color 0.15s ease;
}

.support-panel-close:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.support-panel-body {
    padding: 18px;
    overflow-y: auto;
    flex: 1;
}

.support-success-icon {
    font-size: 3rem;
    color: #10b981;
    line-height: 1;
}

.support-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.15);
    z-index: 1085;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.support-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

@media (max-width: 480px) {
    .support-panel {
        width: calc(100vw - 24px);
        right: 12px;
        bottom: 12px;
        max-height: calc(100vh - 80px);
    }

    .support-fab {
        bottom: 16px;
        right: 16px;
    }
}