:root {
    --bg-color: #0d0d0d;
    --primary-color: #00ffcc;
    --secondary-color: #cc00ff;
    --accent-color: #ff9900;
    --text-color: #e0e0e0;
    --ai-color: #00ffcc;
    --user-color: #cc00ff;
    --system-color: #ffcc00;
    --border-color: rgba(0, 255, 204, 0.3);
    --glass-bg: rgba(26, 26, 26, 0.8);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Global Aesthetics */
.cyber-bg {
    background: radial-gradient(circle at center, #1a1a1a 0%, #000 100%);
    position: relative;
}

#scanline {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(to right, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
    background-size: 100% 4px, 3px 100%;
    pointer-events: none;
    z-index: 100;
}

#noise {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyMDAiIGhlaWdodD0iMjAwIj48ZmlsdGVyIGlkPSJuIj48ZmVUdXJidWxlbmNlIHR5cGU9ImZyYWN0YWxOb2lzZSIgYmFzZUZyZXF1ZW5jeT0iMC42IiBudW1PY3RhdmVzPSIzIiBzdGl0Y2hUaWxlcz0ic3RpdGNoIi8+PC9maWx0ZXI+PHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgZmlsdGVyPSJ1cmwoI24pIi8+PC9zdmc+');
    opacity: 0.05;
    pointer-events: none;
    z-index: 99;
}

/* Header */
.cyber-header {
    background-color: var(--glass-bg);
    border-bottom: 2px solid var(--border-color);
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
    z-index: 10;
}

.logo {
    font-weight: 700;
    letter-spacing: 0.2em;
    font-size: 1.5rem;
    text-shadow: 0 0 10px var(--primary-color);
}

.logo-accent {
    color: var(--primary-color);
}

.status-bar {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #33ff00;
    box-shadow: 0 0 10px #33ff00;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.5; }
    50% { transform: scale(1); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.5; }
}

/* Terminal Container */
.terminal-container {
    flex: 1;
    margin: 2rem 3rem;
    background-color: var(--glass-bg);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 0 30px rgba(0, 255, 204, 0.1);
    position: relative;
}

.terminal-header {
    background-color: rgba(0, 255, 204, 0.1);
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.terminal-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--primary-color);
    opacity: 0.8;
}

.terminal-controls {
    display: flex;
    gap: 8px;
}

.terminal-controls span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
}

.terminal-controls span:nth-child(1) { background-color: #ff5f56; }
.terminal-controls span:nth-child(2) { background-color: #ffbd2e; }
.terminal-controls span:nth-child(3) { background-color: #27c93f; }

/* Chat History */
.chat-history {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    font-family: 'JetBrains Mono', monospace;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) transparent;
}

.chat-history::-webkit-scrollbar { width: 6px; }
.chat-history::-webkit-scrollbar-thumb { background-color: var(--primary-color); border-radius: 3px; }

.message {
    padding: 1rem;
    border-radius: 4px;
    max-width: 85%;
    line-height: 1.6;
    animation: fadeIn 0.3s ease-out;
}

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

.message.ai {
    color: var(--ai-color);
    border-left: 2px solid var(--primary-color);
    background-color: rgba(0, 255, 204, 0.05);
    align-self: flex-start;
}

.message.user {
    color: var(--user-color);
    border-right: 2px solid var(--secondary-color);
    background-color: rgba(204, 0, 255, 0.05);
    align-self: flex-end;
    text-align: right;
}

.message.system {
    color: var(--system-color);
    font-size: 0.85rem;
    opacity: 0.7;
    align-self: center;
    background: transparent;
    border: none;
}

.timestamp {
    display: inline-block;
    margin-right: 8px;
    opacity: 0.4;
}

.sender {
    font-weight: 700;
    margin-right: 8px;
    text-transform: uppercase;
}

/* Terminal Footer/Input */
.terminal-footer {
    display: flex;
    border-top: 1px solid var(--border-color);
    background-color: rgba(0, 255, 204, 0.05);
}

.input-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    padding: 1.5rem;
}

.prompt {
    color: var(--primary-color);
    font-weight: 700;
    margin-right: 1rem;
    font-family: 'JetBrains Mono', monospace;
}

#user-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-color);
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    outline: none;
}

.send-btn {
    background-color: var(--primary-color);
    color: var(--bg-color);
    border: none;
    padding: 0 3rem;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.send-btn:hover {
    background-color: var(--secondary-color);
    color: #fff;
    box-shadow: 0 0 20px var(--secondary-color);
}

/* Hint Button */
.hint-container {
    position: fixed;
    bottom: 2rem;
    right: 3rem;
    z-index: 50;
    max-width: 300px;
}

.hint-btn {
    background-color: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 0.75rem 1.5rem;
    font-family: 'JetBrains Mono', monospace;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.hint-btn:hover {
    background-color: var(--accent-color);
    color: #000;
    box-shadow: 0 0 15px var(--accent-color);
}

.hint-content {
    background-color: var(--glass-bg);
    border: 1px solid var(--accent-color);
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 4px;
    backdrop-filter: blur(10px);
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--accent-color);
    transition: all 0.3s ease;
}

.hidden {
    display: none;
}

/* Responsive */
@media (max-width: 768px) {
    .cyber-header { padding: 1rem; }
    .terminal-container { margin: 1rem; }
    .send-btn { padding: 0 1.5rem; }
    .logo { font-size: 1rem; }
}