:root {
    --bg-color: #abdef2;
    --container-bg: #ffffff;
    --text-main: #373e45;
    --text-muted: #94a3b8;
    --accent: #f9f9f9;
    --accent-hover: #60a5fa;
    --bot-msg-bg: #ffffff;
    --user-msg-bg: #ffffff;
    --border-color: #010101;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at top right, rgba(37, 99, 235, 0.15), transparent 40%),
                      radial-gradient(circle at bottom left, rgba(139, 92, 246, 0.15), transparent 40%);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

.chat-container {
    width: 100%;
    max-width: 900px;
    height: 90vh;
    background: var(--container-bg);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.chat-header {
    padding: 20px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.avatar-glow {
    position: relative;
    border-radius: 50%;
}

.avatar-glow::after {
    content: '';
    position: absolute;
    top: -2px; left: -2px; right: -2px; bottom: -2px;
    background: linear-gradient(45deg, #3b82f6, #5ce9f6);
    border-radius: 50%;
    z-index: -1;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

.avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--container-bg);
}

.header-text h1 {
    font-size: 1.2rem;
    font-weight: 600;
}

.status {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 5px;
}

.status .dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px #10b981;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.header-actions button, .header-actions .dashboard-link {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.3s, transform 0.2s;
    display: flex;
    align-items: center;
    gap: 5px;
    text-decoration: none;
}

.header-actions .dashboard-link span {
    font-size: 0.9rem;
    font-weight: 500;
}

.header-actions button:hover {
    color: #ef4444;
}

.header-actions .dashboard-link:hover {
    color: #2563eb;
    transform: translateY(-1px);
}

.chat-box {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
    scroll-behavior: smooth;
}

.chat-box::-webkit-scrollbar {
    width: 6px;
}

.chat-box::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

.message {
    display: flex;
    gap: 15px;
    max-width: 85%;
    animation: fadeIn 0.3s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

.msg-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    flex-shrink: 0;
}

.msg-content {
    padding: 15px 20px;
    border-radius: 18px;
    font-size: 0.95rem;
    line-height: 1.5;
    word-wrap: break-word;
}

.msg-content p { margin-bottom: 0.5em; }
.msg-content p:last-child { margin-bottom: 0; }
.msg-content code { background: rgba(0,0,0,0.3); padding: 2px 6px; border-radius: 4px; font-family: monospace; }
.msg-content pre { background: rgba(0,0,0,0.4); padding: 10px; border-radius: 8px; overflow-x: auto; margin: 10px 0; }

.message.bot .msg-content {
    background: var(--bot-msg-bg);
    border-top-left-radius: 4px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.message.user .msg-content {
    background: var(--user-msg-bg);
    border-top-right-radius: 4px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.typing-indicator {
    padding: 10px 20px 0;
    display: none;
    gap: 5px;
}

.typing-indicator.active {
    display: flex;
}

.typing-indicator .dot {
    width: 8px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out both;
}

.typing-indicator .dot:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator .dot:nth-child(2) { animation-delay: -0.16s; }

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

.chat-input-area {
    padding: 20px;
    background: rgba(255, 255, 255, 0.95);
    border-top: 1px solid var(--border-color);
}

#chatForm {
    display: flex;
    gap: 15px;
    background: #ffffff;
    padding: 8px 8px 8px 20px;
    border-radius: 30px;
    border: 1px solid var(--border-color);
    transition: border-color 0.3s;
}

#chatForm:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.2);
}

#userInput {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-main);
    font-size: 1rem;
    outline: none;
}

#userInput::placeholder {
    color: var(--text-muted);
}

#sendBtn {
    background: linear-gradient(45deg, var(--accent), #5baed2);
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

#sendBtn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(109, 73, 192, 0.5);
}

#sendBtn:active {
    transform: scale(0.95);
}