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

:root {
    --abstract-green: #00E676;
    --abstract-dark-green: #00C853;
    --abstract-light-green: #69F0AE;
    --abstract-bg: #0A0E27;
    --abstract-sidebar: #131B3A;
    --abstract-hover: #1E2749;
    --text-primary: #FFFFFF;
    --text-secondary: #B0BEC5;
    --border-color: #2A3B5C;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--abstract-bg);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
}

.app-container {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 280px;
    background: var(--abstract-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: relative;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.logo-image {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: cover;
}

.logo h1 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.new-chat-btn {
    width: 100%;
    padding: 12px 16px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.new-chat-btn:hover {
    background: var(--abstract-hover);
    border-color: var(--abstract-green);
}

.sidebar-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.info-section {
    background: rgba(0, 230, 118, 0.1);
    border: 1px solid rgba(0, 230, 118, 0.2);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 20px;
}

.info-section h3 {
    color: var(--abstract-green);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.info-section p {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.4;
}

.conversations-list {
    margin-bottom: 20px;
}

.conversations-header {
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.conversation-item {
    padding: 10px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s ease;
    margin-bottom: 4px;
    font-size: 14px;
    color: var(--text-secondary);
    border: 1px solid transparent;
}

.conversation-item:hover {
    background: var(--abstract-hover);
    color: var(--text-primary);
}

.conversation-item.active {
    background: var(--abstract-hover);
    border-color: var(--abstract-green);
    color: var(--text-primary);
}

.wallet-section {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    border-top: 1px solid var(--border-color);
    background: var(--abstract-sidebar);
}

.wallet-status {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    font-size: 13px;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ff6b6b;
}

.status-dot.connected {
    background: var(--abstract-green);
}

.connect-wallet-btn {
    width: 100%;
    padding: 12px 16px;
    background: linear-gradient(135deg, var(--abstract-green), var(--abstract-dark-green));
    border: none;
    border-radius: 8px;
    color: var(--abstract-bg);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.connect-wallet-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 230, 118, 0.3);
}

.disconnect-btn {
    background: #ff6b6b;
    color: white;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--abstract-bg);
}

.chat-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    background: var(--abstract-sidebar);
}

.chat-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

.message-wrapper {
    border-bottom: 1px solid var(--border-color);
}

.message {
    max-width: 800px;
    margin: 0 auto;
    padding: 24px;
    display: flex;
    gap: 16px;
}

.message.user {
    background: var(--abstract-sidebar);
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    flex-shrink: 0;
}

.message.user .message-avatar {
    background: var(--abstract-green);
    color: var(--abstract-bg);
}

.message.assistant .message-avatar {
    background: linear-gradient(135deg, var(--abstract-green), var(--abstract-light-green));
    color: var(--abstract-bg);
}

.message-content {
    flex: 1;
    line-height: 1.6;
    color: var(--text-primary);
}

.message-content pre {
    background: var(--abstract-hover);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    overflow-x: auto;
    margin: 12px 0;
}

.message-content code {
    background: var(--abstract-hover);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 13px;
}

.input-area {
    padding: 24px;
    border-top: 1px solid var(--border-color);
}

.input-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.message-input {
    width: 100%;
    min-height: 52px;
    max-height: 200px;
    padding: 16px 50px 16px 16px;
    background: var(--abstract-sidebar);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 16px;
    font-family: inherit;
    resize: none;
    outline: none;
    transition: border-color 0.2s ease;
}

.message-input:focus {
    border-color: var(--abstract-green);
}

.message-input::placeholder {
    color: var(--text-secondary);
}

.send-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    background: var(--abstract-green);
    border: none;
    border-radius: 8px;
    color: var(--abstract-bg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.send-btn:hover:not(:disabled) {
    background: var(--abstract-dark-green);
    transform: translateY(-50%) scale(1.05);
}

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

.welcome-screen {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    padding: 40px;
}

.welcome-logo-image {
    width: 80px;
    height: 80px;
    border-radius: 16px;
    object-fit: cover;
    margin-bottom: 24px;
}

.welcome-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--abstract-green), var(--abstract-light-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    max-width: 600px;
    width: 100%;
}

.feature-card {
    background: var(--abstract-sidebar);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    text-align: left;
}

.feature-icon {
    font-size: 24px;
    margin-bottom: 12px;
}

.feature-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.feature-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.loading {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--abstract-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.mobile-menu-btn {
    display: none;
    padding: 12px;
    background: var(--abstract-sidebar);
    border: none;
    color: var(--text-primary);
    cursor: pointer;
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -280px;
        top: 0;
        height: 100vh;
        z-index: 1000;
        transition: left 0.3s ease;
    }

    .sidebar.open {
        left: 0;
    }

    .mobile-menu-btn {
        display: block;
        position: fixed;
        top: 16px;
        left: 16px;
        z-index: 1001;
    }

    .main-content {
        width: 100%;
    }

    .message {
        padding: 16px;
    }

    .input-area {
        padding: 16px;
    }
}