:root {
    --aic-primary: #2563eb;
    --aic-primary-dark: #1d4ed8;
    --aic-bg: #f8fafc;
    --aic-white: #ffffff;
    --aic-text: #1e293b;
    --aic-text-light: #64748b;
    --aic-border: #e2e8f0;
    --aic-shadow: 0 12px 30px rgba(15, 23, 42, 0.14);
}

.aic-chat-container {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", sans-serif;
}

.aic-chat-container[data-mode="shortcode"] {
    max-width: 480px;
    margin: 0 auto;
}

.aic-chat-wrapper {
    background: var(--aic-bg);
    border-radius: 16px;
    box-shadow: var(--aic-shadow);
    border: 1px solid var(--aic-border);
    overflow: hidden;
    flex-direction: column;
    width: 380px;
    height: 600px;
    z-index: 9999;
}

.aic-chat-wrapper.is-inline {
    display: flex;
    width: 100%;
    max-width: 480px;
    position: relative;
    height: 640px;
}

.aic-chat-container[data-mode="float"] .aic-chat-wrapper {
    position: fixed;
    bottom: calc(var(--aic-float-size, 60px) + 32px);
    right: 20px;
    display: none;
}

.aic-chat-container[data-mode="float"] .aic-chat-wrapper[data-position="left"],
.aic-chat-container[data-mode="float"] .aic-chat-wrapper.is-left {
    left: 20px;
    right: auto;
}

.aic-header {
    position: relative;
    background: var(--aic-primary);
    color: #fff;
    padding: 20px 24px;
    text-align: center;
}

.aic-header h2 {
    margin: 0 0 4px;
    font-size: 18px;
    font-weight: 600;
    color: #fff !important;
}

.aic-header p {
    margin: 0;
    font-size: 13px;
    opacity: 0.85;
    color: #fff !important;
}

.aic-close-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
}

.aic-lang-bar {
    display: flex;
    justify-content: center;
    gap: 6px;
    padding: 10px 12px;
    background: var(--aic-white);
    border-bottom: 1px solid var(--aic-border);
    flex-wrap: wrap;
}

.aic-lang-btn {
    padding: 5px 10px;
    border: 1px solid var(--aic-border);
    border-radius: 20px;
    background: var(--aic-white);
    color: var(--aic-text);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.aic-lang-btn:hover,
.aic-lang-btn.active {
    background: var(--aic-primary);
    color: #fff;
    border-color: var(--aic-primary);
}

.aic-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: var(--aic-bg);
}

.aic-message {
    display: flex;
    gap: 8px;
    max-width: 85%;
    animation: aic-fade-in 0.25s ease;
}

.aic-message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.aic-message.bot {
    align-self: flex-start;
}

.aic-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.aic-message.bot .aic-avatar {
    background: var(--aic-primary);
    color: #fff;
}

.aic-message.user .aic-avatar {
    background: #94a3b8;
    color: #fff;
}

.aic-bubble {
    padding: 12px 16px;
    border-radius: 16px;
    line-height: 1.5;
    font-size: 14px;
    word-break: break-word;
}

.aic-message.bot .aic-bubble {
    background: var(--aic-white);
    color: var(--aic-text);
    border: 1px solid var(--aic-border);
    border-bottom-left-radius: 4px;
}

.aic-message.user .aic-bubble {
    background: var(--aic-primary);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.aic-typing {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    background: var(--aic-white);
    border-radius: 16px;
    border: 1px solid var(--aic-border);
    border-bottom-left-radius: 4px;
    width: fit-content;
}

.aic-typing span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #94a3b8;
    animation: aic-bounce 1.4s infinite ease-in-out both;
}

.aic-typing span:nth-child(1) {
    animation-delay: -0.32s;
}

.aic-typing span:nth-child(2) {
    animation-delay: -0.16s;
}

.aic-quick-actions {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    background: var(--aic-white);
    border-top: 1px solid var(--aic-border);
    border-bottom: 1px solid var(--aic-border);
    flex-wrap: wrap;
}

.aic-quick-btn {
    padding: 8px 16px;
    border: 1px solid var(--aic-primary);
    border-radius: 20px;
    background: #fff;
    color: var(--aic-primary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.aic-quick-btn:hover {
    background: var(--aic-primary);
    color: #fff;
}

.aic-input-area {
    display: flex;
    gap: 8px;
    padding: 16px;
    background: var(--aic-white);
    border-top: 1px solid var(--aic-border);
}

.aic-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--aic-border);
    border-radius: 24px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
    font-family: inherit;
}

.aic-input:focus {
    border-color: var(--aic-primary);
}

.aic-send-btn {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 50%;
    background: var(--aic-primary);
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.aic-send-btn:disabled {
    background: #cbd5e1;
    cursor: not-allowed;
}

.aic-footer {
    text-align: center;
    padding: 8px;
    font-size: 11px;
    color: var(--aic-text-light);
    background: var(--aic-white);
}

.aic-float-button {
    position: fixed;
    bottom: 20px;
    width: var(--aic-float-size, 60px);
    height: var(--aic-float-size, 60px);
    border: none;
    border-radius: 999px;
    background: var(--aic-float-color, var(--aic-primary));
    color: #fff;
    box-shadow: 0 10px 26px rgba(15, 23, 42, 0.28);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10000;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.aic-float-button.aic-shape-circle {
    border-radius: 999px;
}

.aic-float-button.aic-shape-rounded {
    border-radius: 18px;
}

.aic-float-button.aic-shape-square {
    border-radius: 10px;
}

.aic-float-button:hover {
    transform: translateY(-2px);
}

.aic-float-button.is-hidden {
    opacity: 0;
    pointer-events: none;
}

.aic-float-right {
    right: 20px;
}

.aic-float-left {
    left: 20px;
}

.aic-float-button-image {
    width: 100%;
    height: 100%;
    object-fit: var(--aic-float-image-fit, contain);
    border-radius: inherit;
}

.aic-float-button-text {
    font-size: calc(var(--aic-float-size, 60px) * 0.47);
    line-height: 1;
}

@keyframes aic-fade-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes aic-bounce {
    0%,
    80%,
    100% {
        transform: scale(0);
    }
    40% {
        transform: scale(1);
    }
}

@media (max-width: 520px) {
    .aic-chat-container[data-mode="shortcode"] {
        max-width: 100%;
    }

    .aic-chat-wrapper.is-inline {
        max-width: none;
        height: 100vh;
        border-radius: 0;
        border: none;
    }

    .aic-chat-container[data-mode="float"] .aic-chat-wrapper {
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 100%;
        border-radius: 0;
        border: none;
    }

    .aic-float-button {
        bottom: 16px;
    }
}