:root {
    --bg-color: #0a0a0c;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --accent-primary: #8b5cf6;
    --accent-secondary: #ec4899;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --message-user-bg: #2d2d30;
    --message-bot-bg: rgba(139, 92, 246, 0.1);
    --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
}

/* Background Effects */
.background-glow {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(139, 92, 246, 0.08) 0%, transparent 40%),
                radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.05) 0%, transparent 30%);
    z-index: -1;
    pointer-events: none;
}

/* Chat Layout */
.chat-container {
    width: 100%;
    max-width: 900px;
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
    background: radial-gradient(circle at top, rgba(255,255,255,0.02) 0%, transparent 100%);
}

.chat-header {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo h1 {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    background: var(--glass-bg);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: #22c55e;
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.4);
}

/* Messages Area */
.messages-area {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--glass-border) transparent;
}

.messages-area::-webkit-scrollbar {
    width: 6px;
}

.messages-area::-webkit-scrollbar-thumb {
    background-color: var(--glass-border);
    border-radius: 3px;
}

.welcome-message {
    text-align: center;
    margin-top: 20vh;
    animation: fadeIn 0.8s ease-out;
}

.welcome-message h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #fff 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.welcome-message p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Message Bubbles */
.message {
    display: flex;
    gap: 1rem;
    max-width: 85%;
    animation: slideUp 0.3s ease-out;
    line-height: 1.6;
}

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

.message.assistant {
    align-self: flex-start;
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.user .avatar {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
}

.assistant .avatar {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.message-content {
    padding: 1rem 1.25rem;
    border-radius: 18px;
    font-size: 0.95rem;
    position: relative;
    word-wrap: break-word;
}

.user .message-content {
    background: var(--message-user-bg);
    color: white;
    border-bottom-right-radius: 4px;
}

.assistant .message-content {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-top-left-radius: 4px;
}

/* Markdown Styles inside messages */
.message-content h1, .message-content h2, .message-content h3 {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    font-size: 1.1em;
}

.message-content p {
    margin-bottom: 0.5rem;
}

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

.message-content code {
    background: rgba(0,0,0,0.3);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
}

.message-content pre {
    background: rgba(0,0,0,0.3);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 0.75rem 0;
    border: 1px solid var(--glass-border);
}

.message-content pre code {
    background: transparent;
    padding: 0;
    color: #e2e8f0;
}

.message-content ul, .message-content ol {
    margin-left: 1.5rem;
    margin-bottom: 0.75rem;
}

/* Input Area */
.input-area {
    padding: 2rem;
    background: linear-gradient(to top, var(--bg-color) 20%, transparent);
}

.input-container {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 0.5rem;
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-container:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.1);
}

textarea {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 1rem;
    padding: 1rem;
    resize: none;
    max-height: 200px;
    outline: none;
}

textarea::placeholder {
    color: var(--text-secondary);
}

.send-btn {
    background: var(--text-primary);
    color: var(--bg-color);
    border: none;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s, opacity 0.2s;
    margin-bottom: 4px;
}

.send-btn:hover {
    transform: scale(1.05);
}

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

/* Loading Indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 0.5rem;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--text-secondary);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out both;
}

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

.footer {
    text-align: center;
    font-size: 0.75rem;
    padding: 0.75rem 0;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--glass-border);
    width: 100%;
    margin-top: auto; /* Ensures it stays at bottom if content is short, though flex structure handles this */
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.footer-content:hover {
    opacity: 1;
}

.footer-content i {
    font-size: 0.65rem;
    color: var(--accent-secondary);
    animation: heartbeat 2s infinite ease-in-out;
}

.footer-link {
    text-decoration: none;
    color: var(--accent-primary);
    font-weight: 500;
    transition: color 0.2s;
}

.footer-link:hover {
    color: var(--accent-secondary);
    text-decoration: none;
}

@keyframes heartbeat {
    0% { transform: scale(1); }
    25% { transform: scale(1.1); }
    50% { transform: scale(1); }
    75% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* Animations */
@keyframes slideUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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