:root {
    --bg-color: #09090b;
    --card-bg: rgba(24, 24, 27, 0.85);
    --gold: #f0c040;
    --gold-glow: rgba(240, 192, 64, 0.3);
    --text-primary: #f4f4f5;
    --text-secondary: #a1a1aa;
    --border: rgba(39, 39, 42, 0.5);
    --accent: #18181b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(240, 192, 64, 0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

.app-container {
    width: 100%;
    max-width: 900px;
    height: 90vh;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
}

.app-header {
    padding: 24px 32px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border);
    gap: 16px;
}

.logo-container {
    width: 48px;
    height: 48px;
    background: var(--accent);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--border);
    overflow: hidden;
}

.app-logo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.header-text h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.header-text p {
    font-size: 13px;
    color: var(--text-secondary);
}

.status-badge {
    margin-left: auto;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    padding: 6px 12px;
    border-radius: 99px;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.status-text {
    font-size: 11px;
    font-weight: 600;
    color: #10b981;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 32px;
    overflow: hidden;
    position: relative;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding-bottom: 24px;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

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

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

.message {
    max-width: 80%;
    display: flex;
    flex-direction: column;
}

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

.message-content {
    padding: 14px 20px;
    border-radius: 18px;
    font-size: 15px;
    line-height: 1.5;
}

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

.message.user .message-content {
    background: var(--gold);
    color: #000;
    font-weight: 500;
    border-bottom-right-radius: 4px;
    box-shadow: 0 4px 15px var(--gold-glow);
}

.chat-input-area {
    margin-top: auto;
    position: relative;
}

#chat-form {
    display: flex;
    gap: 12px;
}

#user-input {
    flex: 1;
    background: var(--accent);
    border: 1px solid var(--border);
    padding: 16px 24px;
    border-radius: 16px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 15px;
    outline: none;
    transition: all 0.2s ease;
}

#user-input:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 4px var(--gold-glow);
}

#send-btn {
    background: var(--gold);
    color: #000;
    border: none;
    padding: 0 20px;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    justify-content: center;
    align-items: center;
}

#send-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--gold-glow);
}

#send-btn svg {
    width: 20px;
    height: 20px;
}

.slide-up {
    animation: slideUp 0.3s ease-out forwards;
}

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

@media (max-width: 768px) {
    .app-container {
        height: 100vh;
        border-radius: 0;
        border: none;
    }
}