/* ========================================
   AI MENTOR CHAT - PROFESSIONAL DESIGN
   ======================================== */

.ai-chat-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.ai-chat-button {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-chat-button:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(99, 102, 241, 0.6);
}

.ai-chat-window {
    position: fixed;
    bottom: 90px;
    right: 20px;
    width: 380px;
    height: 550px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    display: none;
    flex-direction: column;
    overflow: hidden;
    z-index: 999;
}

.ai-chat-window.active {
    display: flex;
}

.ai-chat-header {
    background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ai-chat-header h3 {
    margin: 0;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.ai-chat-close {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.3s ease;
}

.ai-chat-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.ai-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: #f9fafb;
}

.ai-message {
    margin-bottom: 15px;
    display: flex;
    gap: 10px;
}

.ai-message.user {
    flex-direction: row-reverse;
}

.ai-message-avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.ai-message.ai .ai-message-avatar {
    background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    color: white;
}

.ai-message.user .ai-message-avatar {
    background: #e5e7eb;
    color: #6b7280;
}

.ai-message-content {
    max-width: 70%;
    padding: 12px 16px;
    border-radius: 12px;
    line-height: 1.5;
    font-size: 0.95rem;
}

.ai-message.ai .ai-message-content {
    background: white;
    color: #1f2937;
    border: 1px solid #e5e7eb;
}

.ai-message.user .ai-message-content {
    background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    color: white;
}

.ai-message-time {
    font-size: 0.75rem;
    color: #9ca3af;
    margin-top: 5px;
}

.ai-chat-input-container {
    padding: 15px;
    background: white;
    border-top: 1px solid #e5e7eb;
    display: flex;
    gap: 10px;
}

.ai-chat-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 25px;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.ai-chat-input:focus {
    border-color: #6366f1;
}

.ai-chat-send {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.ai-chat-send:hover {
    transform: scale(1.1);
}

.ai-chat-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.ai-typing {
    display: flex;
    gap: 5px;
    padding: 12px 16px;
    background: white;
    border-radius: 12px;
    width: fit-content;
}

.ai-typing span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #6366f1;
    animation: typing 1.4s infinite;
}

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

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

@keyframes typing {

    0%,
    60%,
    100% {
        transform: translateY(0);
    }

    30% {
        transform: translateY(-10px);
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .ai-chat-window {
        width: calc(100vw - 40px);
        height: calc(100vh - 120px);
        bottom: 80px;
        right: 20px;
        left: 20px;
    }
}

/* Scrollbar */
.ai-chat-messages::-webkit-scrollbar {
    width: 6px;
}

.ai-chat-messages::-webkit-scrollbar-track {
    background: #f3f4f6;
}

.ai-chat-messages::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 3px;
}

.ai-chat-messages::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}