.whatsapp-chatbot-widget {
    position: fixed;
    bottom: max(20px, env(safe-area-inset-bottom));
    right: max(20px, env(safe-area-inset-right));
    z-index: 9998;
    font-family: "Outfit", system-ui, sans-serif;
}

.whatsapp-chat-button {
    width: 56px;
    height: 56px;
    min-width: 56px;
    min-height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    border: none;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    color: #ffffff;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.whatsapp-chat-button:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.55);
}

@media (hover: none) {
    .whatsapp-chat-button:active {
        transform: scale(0.98);
    }
}

.whatsapp-chat-button svg {
    width: 28px;
    height: 28px;
}

.whatsapp-chat-notification {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 20px;
    height: 20px;
    min-width: 20px;
    min-height: 20px;
    background: #ff4444;
    border-radius: 50%;
    border: 2px solid #ffffff;
    display: none;
    animation: wa-pulse-notification 2s infinite;
}

.whatsapp-chat-notification.show {
    display: block;
}

@keyframes wa-pulse-notification {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.whatsapp-chat-window {
    position: absolute;
    bottom: calc(56px + 12px);
    right: 0;
    left: auto;
    width: min(380px, calc(100vw - 24px));
    height: min(600px, calc(100vh - 100px));
    max-height: calc(100vh - 100px);
    background: #ffffff;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    display: none;
    flex-direction: column;
    overflow: hidden;
    animation: wa-slide-up 0.3s ease;
    -webkit-overflow-scrolling: touch;
}

.whatsapp-chat-window.show {
    display: flex;
}

@keyframes wa-slide-up {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
    @keyframes wa-slide-up {
        from { opacity: 0; transform: translateX(-50%) translateY(20px); }
        to { opacity: 1; transform: translateX(-50%) translateY(0); }
    }
}

.whatsapp-chat-header {
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    padding: 14px 16px;
    padding-left: max(16px, env(safe-area-inset-left));
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #ffffff;
    flex-shrink: 0;
}

.whatsapp-chat-header-info {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.whatsapp-chat-avatar {
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.whatsapp-chat-avatar svg {
    width: 24px;
    height: 24px;
    fill: #ffffff;
}

.whatsapp-chat-header-text {
    min-width: 0;
}

.whatsapp-chat-header-text h6 {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.whatsapp-chat-header-text small {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.9);
}

.whatsapp-chat-close {
    background: transparent;
    border: none;
    color: #ffffff;
    cursor: pointer;
    padding: 8px;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    flex-shrink: 0;
}

.whatsapp-chat-close:hover {
    transform: rotate(90deg);
}

.whatsapp-chat-body {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px;
    background: #e5ddd5;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3Cpattern id='a' patternUnits='userSpaceOnUse' width='100' height='100' patternTransform='scale(0.5) rotate(0)'%3E%3Crect x='0' y='0' width='100' height='100' fill='hsla(0,0%25,100%25,0)'/%3E%3Cpath d='M50 50h50v50H50z' stroke='%23d4d4d4' stroke-width='1' fill='none'/%3E%3C/pattern%3E%3C/defs%3E%3Crect width='100%25' height='100%25' fill='url(%23a)'/%3E%3C/svg%3E");
    -webkit-overflow-scrolling: touch;
    min-height: 0;
}

.whatsapp-chat-welcome {
    margin-bottom: 12px;
}

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

.whatsapp-chat-message {
    display: flex;
    flex-direction: column;
    max-width: 85%;
    animation: wa-fade-in 0.3s ease;
}

@keyframes wa-fade-in {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.whatsapp-chat-message-sent {
    align-self: flex-end;
}

.whatsapp-chat-message-received {
    align-self: flex-start;
}

.whatsapp-chat-message-content {
    padding: 10px 14px;
    border-radius: 8px;
    word-wrap: break-word;
    overflow-wrap: break-word;
    line-height: 1.4;
}

.whatsapp-chat-message-sent .whatsapp-chat-message-content {
    background: #dcf8c6;
    border-bottom-right-radius: 2px;
}

.whatsapp-chat-message-received .whatsapp-chat-message-content {
    background: #ffffff;
    border-bottom-left-radius: 2px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.whatsapp-chat-message-content p {
    margin: 0 0 4px 0;
    font-size: 14px;
    color: #303030;
}

.whatsapp-chat-message-content p:last-child {
    margin-bottom: 0;
}

.whatsapp-chat-message-time {
    font-size: 11px;
    color: #667781;
    margin-top: 4px;
    padding: 0 4px;
}

.whatsapp-chat-message-sent .whatsapp-chat-message-time {
    text-align: right;
}

.whatsapp-chat-input-container {
    padding: 12px;
    padding-bottom: max(12px, env(safe-area-inset-bottom));
    background: #f0f0f0;
    border-top: 1px solid #e0e0e0;
    flex-shrink: 0;
}

.whatsapp-chat-form {
    display: flex;
    gap: 8px;
    align-items: center;
}

.whatsapp-chat-input {
    flex: 1;
    min-width: 0;
    padding: 12px 14px;
    border: 1px solid #e0e0e0;
    border-radius: 24px;
    font-size: 16px;
    outline: none;
    background: #ffffff;
    transition: border-color 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
}

.whatsapp-chat-input:focus {
    border-color: #25d366;
}

.whatsapp-chat-send {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    border: none;
    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
    flex-shrink: 0;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.whatsapp-chat-send:hover {
    transform: scale(1.08);
}

.whatsapp-chat-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.whatsapp-chat-typing {
    display: flex;
    gap: 4px;
    padding: 10px 14px;
    background: #ffffff;
    border-radius: 8px;
    max-width: 75px;
    align-self: flex-start;
}

.whatsapp-chat-typing span {
    width: 8px;
    height: 8px;
    background: #667781;
    border-radius: 50%;
    animation: wa-typing 1.4s infinite;
}

.whatsapp-chat-typing span:nth-child(2) { animation-delay: 0.2s; }
.whatsapp-chat-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes wa-typing {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-10px); }
}

@media (min-width: 769px) {
    .whatsapp-chat-button {
        width: 60px;
        height: 60px;
        min-width: 60px;
        min-height: 60px;
    }
    .whatsapp-chat-button svg {
        width: 32px;
        height: 32px;
    }
    .whatsapp-chat-window {
        bottom: 88px;
        width: 380px;
        height: min(600px, calc(100vh - 100px));
        max-height: calc(100vh - 100px);
    }
}

@media (max-width: 768px) {
    .whatsapp-chatbot-widget {
        bottom: max(16px, env(safe-area-inset-bottom));
        right: max(16px, env(safe-area-inset-right));
    }
    .whatsapp-chat-window {
        position: fixed;
        left: 50%;
        right: auto;
        transform: translateX(-50%);
        width: calc(100vw - 24px);
        max-width: 400px;
        height: calc(100dvh - 90px);
        max-height: calc(100dvh - 90px);
        bottom: calc(56px + 12px + env(safe-area-inset-bottom));
        border-radius: 16px;
    }
    .whatsapp-chat-window.show {
        transform: translateX(-50%) translateY(0);
    }
    .whatsapp-chat-header {
        padding: 12px 14px;
        padding-left: max(14px, env(safe-area-inset-left));
    }
    .whatsapp-chat-header-text h6 {
        font-size: 14px;
    }
    .whatsapp-chat-body {
        padding: 12px;
    }
    .whatsapp-chat-message {
        max-width: 88%;
    }
    .whatsapp-chat-input-container {
        padding: 10px 12px;
        padding-bottom: max(10px, env(safe-area-inset-bottom));
    }
    .whatsapp-chat-input {
        padding: 12px 16px;
    }
}

@media (max-width: 480px) {
    .whatsapp-chatbot-widget {
        bottom: max(12px, env(safe-area-inset-bottom));
        right: max(12px, env(safe-area-inset-right));
    }
    .whatsapp-chat-window {
        width: calc(100vw - 16px);
        max-width: none;
        height: calc(100dvh - 80px);
        max-height: calc(100dvh - 80px);
        bottom: calc(56px + 8px + env(safe-area-inset-bottom));
        border-radius: 12px;
    }
    .whatsapp-chat-button {
        width: 52px;
        height: 52px;
        min-width: 52px;
        min-height: 52px;
    }
    .whatsapp-chat-button svg {
        width: 26px;
        height: 26px;
    }
}