:root {
    --sv-chat-bg: #ffffff;
    --sv-chat-surface: #f8fafc;
    --sv-chat-border: #e7eaf0;
    --sv-chat-text: #172033;
    --sv-chat-muted: #667085;
    --sv-chat-primary: #464797;
    --sv-chat-primary-dark: #242577;
    --sv-chat-shadow: 0 20px 60px rgba(19, 32, 56, 0.16);
    --sv-chat-radius-xl: 24px;
    --sv-chat-radius-lg: 18px;
    --sv-chat-radius-md: 14px;
}

.sv-chat-widget {
    position: fixed;
    right: auto;
    left: 32px;
    bottom: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
}

.sv-chat-fab {
    border: 0;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--sv-chat-primary), #3541e5);
    color: #fff;
    box-shadow: var(--sv-chat-shadow);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease;
}

.sv-chat-fab:hover {
    transform: translateY(-2px);
}

.sv-chat-fab-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .18);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.sv-chat-panel {
    width: 380px;
    max-width: calc(100vw - 24px);
    height: 620px;
    max-height: calc(100vh - 110px);
    background: var(--sv-chat-bg);
    border: 1px solid var(--sv-chat-border);
    border-radius: var(--sv-chat-radius-xl);
    box-shadow: var(--sv-chat-shadow);
    overflow: hidden;
    display: none;
    flex-direction: column;
}

.sv-chat-panel.is-open {
    display: flex;
}

.sv-chat-header {
    padding: 18px 18px 16px;
    border-bottom: 1px solid var(--sv-chat-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(180deg, #fff 0%, #fff7f7 100%);
}

.sv-chat-header-brand {
    display: flex;
    gap: 12px;
    align-items: center;
}

.sv-chat-avatar {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--sv-chat-primary), #ef5350);
    color: #fff;
    font-weight: 800;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sv-chat-header-brand strong {
    display: block;
    color: var(--sv-chat-text);
    font-size: 15px;
    line-height: 1.1;
}

.sv-chat-header-brand span {
    display: block;
    color: var(--sv-chat-muted);
    font-size: 12px;
    margin-top: 3px;
}

.sv-chat-header-actions {
    display: flex;
    gap: 8px;
}

.sv-chat-icon-btn {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    border: 1px solid var(--sv-chat-border);
    background: #fff;
    color: var(--sv-chat-text);
    cursor: pointer;
}

.sv-chat-body {
    flex: 1;
    overflow-y: auto;
    background: var(--sv-chat-surface);
    padding: 16px;
}

.sv-chat-welcome {
    background: #fff;
    border: 1px solid var(--sv-chat-border);
    border-radius: 18px;
    padding: 16px;
    margin-bottom: 14px;
}

.sv-chat-welcome p {
    margin: 0 0 14px;
    font-size: 14px;
    line-height: 1.55;
    color: var(--sv-chat-text);
}

.sv-chat-quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sv-chat-chip {
    border: 1px solid var(--sv-chat-border);
    background: #fff;
    color: var(--sv-chat-text);
    border-radius: 999px;
    padding: 9px 12px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s ease;
}

.sv-chat-chip:hover {
    border-color: rgba(40, 43, 198, 0.28);
    color: var(--sv-chat-primary);
    background: #fff7f7;
}

.sv-chat-messages {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sv-chat-message {
    max-width: 86%;
    padding: 12px 14px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.5;
}

.sv-chat-message.bot {
    align-self: flex-start;
    background: #fff;
    border: 1px solid var(--sv-chat-border);
    color: var(--sv-chat-text);
}

.sv-chat-message.user {
    align-self: flex-end;
    background: var(--sv-chat-primary);
    color: #fff;
}

.sv-chat-message-actions {
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sv-chat-inline-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 9px 12px;
    font-size: 12px;
    font-weight: 700;
    text-decoration: none;
    border: 1px solid transparent;
}

.sv-chat-inline-btn.primary {
    background: var(--sv-chat-primary);
    color: #fff;
}

.sv-chat-inline-btn.secondary {
    background: #fff;
    border-color: var(--sv-chat-border);
    color: var(--sv-chat-text);
}

.sv-chat-footer {
    border-top: 1px solid var(--sv-chat-border);
    background: #fff;
    padding: 14px;
}

.sv-chat-cta-row {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
}

.sv-chat-primary-cta,
.sv-chat-secondary-cta {
    flex: 1;
    text-align: center;
    text-decoration: none;
    border-radius: 999px;
    padding: 11px 14px;
    font-size: 13px;
    font-weight: 700;
}

.sv-chat-primary-cta {
    background: var(--sv-chat-primary);
    color: #fff;
}

.sv-chat-primary-cta:hover {
    background: var(--sv-chat-primary-dark);
    color: #fff;
}

.sv-chat-secondary-cta {
    background: #fff;
    border: 1px solid var(--sv-chat-border);
    color: var(--sv-chat-text);
}

.sv-chat-form {
    display: flex;
    gap: 10px;
}

.sv-chat-input {
    flex: 1;
    height: 46px;
    border-radius: 999px;
    border: 1px solid var(--sv-chat-border);
    padding: 0 16px;
    font-size: 14px;
    color: var(--sv-chat-text);
    outline: none;
}

.sv-chat-input:focus {
    border-color: rgba(64, 40, 198, 0.36);
    box-shadow: 0 0 0 4px rgba(198, 40, 40, .08);
}

.sv-chat-send-btn {
    border: 0;
    border-radius: 999px;
    background: var(--sv-chat-primary);
    color: #fff;
    padding: 0 16px;
    min-width: 88px;
    font-weight: 700;
    cursor: pointer;
}

.sv-chat-typing {
    font-size: 12px;
    color: var(--sv-chat-muted);
    padding: 6px 4px 0;
}

@media (max-width: 767.98px) {
    #svChatPanel.sv-chat-panel {
        position: fixed !important;
        left: 12px !important;
        right: 12px !important;
        top: 88px !important;
        bottom: 90px !important;
        width: auto !important;
        max-width: none !important;
        height: auto !important;
        max-height: none !important;
        border-radius: 24px !important;
        overflow: hidden !important;
    }

    .sv-chat-header {
        padding: 14px 16px !important;
        min-height: auto !important;
    }

    .sv-chat-header-brand {
        gap: 10px !important;
    }

    .sv-chat-avatar {
        width: 48px !important;
        height: 48px !important;
        font-size: 22px !important;
        flex-shrink: 0 !important;
    }

    .sv-chat-header-brand strong {
        font-size: 16px !important;
        line-height: 1.15 !important;
    }

    .sv-chat-header-brand span {
        font-size: 13px !important;
    }

    .sv-chat-header-actions {
        gap: 8px !important;
    }

    .sv-chat-icon-btn {
        width: 44px !important;
        height: 44px !important;
        min-width: 44px !important;
        border-radius: 14px !important;
        font-size: 24px !important;
        line-height: 1 !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        position: relative !important;
        z-index: 3 !important;
    }

    .sv-chat-body {
        flex: 1 1 auto !important;
        overflow-y: auto !important;
        padding: 12px !important;
        min-height: 0 !important;
    }

    .sv-chat-welcome {
        padding: 14px !important;
        border-radius: 22px !important;
    }

    .sv-chat-welcome p {
        font-size: 15px !important;
        line-height: 1.5 !important;
        margin-bottom: 14px !important;
    }

    .sv-chat-quick-actions {
        display: flex !important;
        flex-wrap: wrap !important;
        gap: 10px !important;
    }

    .sv-chat-chip {
        padding: 10px 14px !important;
        font-size: 14px !important;
        border-radius: 999px !important;
        line-height: 1.2 !important;
    }

    .sv-chat-footer {
        padding: 10px 12px calc(10px + env(safe-area-inset-bottom)) !important;
        border-top: 1px solid #ececf3 !important;
        background: #fff !important;
    }

    .sv-chat-cta-row {
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        gap: 10px !important;
        margin-bottom: 10px !important;
    }

    .sv-chat-secondary-cta,
    .sv-chat-primary-cta {
        height: 48px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        border-radius: 999px !important;
        font-size: 14px !important;
        padding: 0 12px !important;
        text-align: center !important;
    }

    .sv-chat-form {
        display: grid !important;
        grid-template-columns: 1fr 110px !important;
        gap: 10px !important;
        align-items: center !important;
    }

    .sv-chat-input {
        height: 48px !important;
        border-radius: 999px !important;
        font-size: 15px !important;
        padding: 0 16px !important;
        min-width: 0 !important;
    }

    .sv-chat-send-btn {
        height: 48px !important;
        border-radius: 999px !important;
        font-size: 15px !important;
        padding: 0 16px !important;
    }
}

body.sv-chat-open {
    overflow: hidden !important;
    touch-action: none !important;
}

@media (max-width: 767.98px) {
    .sv-chat-header {
        position: relative !important;
        z-index: 10020 !important;
    }

    .sv-chat-header-actions {
        position: relative !important;
        z-index: 10030 !important;
        display: flex !important;
        align-items: center !important;
        gap: 8px !important;
    }

    #svChatClose,
    #svChatMinimize {
        position: relative !important;
        z-index: 10040 !important;
        pointer-events: auto !important;
        touch-action: manipulation !important;
    }

    .sv-chat-body {
        position: relative !important;
        z-index: 1 !important;
    }
}