/* Digital Twin Chat Widget Styles */
#digital-twin-modal {
    position: fixed;
    bottom: 90px;
    right: 20px;
    width: 400px;
    max-width: calc(100vw - 40px);
    height: 600px;
    max-height: calc(100vh - 120px);
    background: white;
    border-radius: 0.75rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    display: none;
    flex-direction: column;
    z-index: 9999;
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    overflow: hidden;
    border: 2px solid #c9f7a5;
}

#digital-twin-modal.active {
    display: flex;
}

#digital-twin-header {
    background: #c9f7a5;
    color: #000000;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#digital-twin-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

#digital-twin-header div {
    display: flex;
    gap: 10px;
}

#digital-twin-close,
#digital-twin-reset {
    background: #000000;
    border: none;
    color: #c9f7a5;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.25rem;
    -webkit-border-radius: 0.25rem;
    transition: all 0.2s ease;
    -webkit-transition: all 0.2s ease;
}

#digital-twin-close i,
#digital-twin-reset i {
    font-size: 14px;
}

#digital-twin-close:hover,
#digital-twin-reset:hover {
    background: #333333;
    transform: translateY(-2px);
    -webkit-transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    -webkit-box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

#digital-twin-close:focus,
#digital-twin-reset:focus {
    outline: 2px solid #000000;
    outline-offset: 2px;
}

#digital-twin-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: rgba(201, 247, 165, 0.1);
}

.dt-message {
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
}

.dt-message.assistant {
    align-items: flex-start;
}

.dt-message.user {
    align-items: flex-end;
}

.dt-message-content {
    max-width: 80%;
    padding: 12px 16px;
    border-radius: 0.5rem;
    -webkit-border-radius: 0.5rem;
    word-wrap: break-word;
    line-height: 1.6;
    font-size: 0.875rem;
}

.dt-message.assistant .dt-message-content {
    background: white;
    color: #000000;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.dt-message.user .dt-message-content {
    background: #000000;
    color: #c9f7a5;
}

.dt-typing {
    display: none;
    padding: 12px 16px;
    background: white;
    border-radius: 0.5rem;
    -webkit-border-radius: 0.5rem;
    width: 60px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.dt-typing.active {
    display: block;
}

.dt-typing span {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    -webkit-border-radius: 50%;
    background: #000000;
    margin: 0 2px;
    animation: typing 1.4s infinite;
    -webkit-animation: typing 1.4s infinite;
}

.dt-typing span:nth-child(2) {
    animation-delay: 0.2s;
}

.dt-typing span:nth-child(3) {
    animation-delay: 0.4s;
}

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

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

.dt-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.dt-option-button {
    background: #000000;
    color: #c9f7a5;
    border: none;
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 13px;
    font-family: 'Poppins', sans-serif;
    cursor: pointer;
    transition: all 0.2s;
}

.dt-option-button:hover {
    opacity: 0.8;
    transform: translateY(-1px);
}

#digital-twin-input-area {
    padding: 16px;
    background: white;
    border-top: 2px solid #c9f7a5;
    display: flex;
    gap: 8px;
}

#digital-twin-input {
    flex: 1;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 0.25rem;
    -webkit-border-radius: 0.25rem;
    padding: 12px 16px;
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: all 0.2s ease;
    -webkit-transition: all 0.2s ease;
    color: #000000;
}

#digital-twin-input:focus {
    border-color: #000000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    -webkit-box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

#digital-twin-send {
    background: #000000;
    color: #c9f7a5;
    border: none;
    border-radius: 0.25rem;
    -webkit-border-radius: 0.25rem;
    width: 44px;
    height: 44px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    -webkit-transition: all 0.2s ease;
    font-size: 18px;
    font-weight: 600;
}

#digital-twin-send:hover {
    background: #333333;
    transform: translateY(-2px);
    -webkit-transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    -webkit-box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

#digital-twin-send:focus {
    outline: 2px solid #000000;
    outline-offset: 2px;
}

#digital-twin-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    -webkit-transform: none;
}

/* Mobile Responsiveness */
@media (max-width: 640px) {
    #digital-twin-modal {
        bottom: 0;
        right: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        height: 100dvh; /* Dynamic Viewport Height - berücksichtigt iOS Browser-UI */
        max-height: 100vh;
        max-height: 100dvh;
        border-radius: 0;
        border: none;
    }

    #digital-twin-header {
        padding: 16px;
        min-height: 60px;
    }

    #digital-twin-header h3 {
        font-size: 16px;
    }

    #digital-twin-messages {
        padding: 16px;
        /* Verhindert, dass Content hinter iOS Safari UI verschwindet */
        padding-bottom: max(16px, env(safe-area-inset-bottom));
    }

    #digital-twin-input-area {
        padding: 12px;
        padding-bottom: max(12px, env(safe-area-inset-bottom));
        gap: 10px;
    }

    #digital-twin-input {
        font-size: 16px; /* Verhindert Auto-Zoom auf iOS */
        padding: 14px;
        min-height: 48px; /* Touch-Target minimum */
    }

    #digital-twin-send {
        width: 48px;
        height: 48px;
        min-width: 48px;
        min-height: 48px;
        flex-shrink: 0;
    }

    #digital-twin-close,
    #digital-twin-reset {
        width: 40px;
        height: 40px;
        min-width: 40px;
        min-height: 40px;
    }

    #digital-twin-close i,
    #digital-twin-reset i {
        font-size: 16px;
    }

    .dt-message-content {
        max-width: 85%;
        font-size: 0.9375rem; /* 15px - besser lesbar auf mobile */
    }

    .dt-option-button {
        padding: 10px 18px;
        font-size: 14px;
        min-height: 44px; /* Touch-Target */
    }
}

/* Extra small screens */
@media (max-width: 375px) {
    #digital-twin-header {
        padding: 12px;
    }

    #digital-twin-messages {
        padding: 12px;
    }

    .dt-message-content {
        max-width: 90%;
    }
}