:root {
    --bg-color: #0d1117;
    --panel-bg: rgba(22, 27, 34, 0.8);
    --border-color: #30363d;
    --text-main: #c9d1d9;
    --text-muted: #8b949e;
    --accent-color: #58a6ff;
    --success-color: #3fb950;
    --error-color: #f85149;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

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

.app-container {
    height: 100%;
    display: flex;
    flex-direction: column;
    background: radial-gradient(circle at top right, #161b22, #0d1117);
}

header {
    padding: 12px 20px;
    background: var(--panel-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 10;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.server-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
}

.host-label {
    letter-spacing: 0.02em;
    color: var(--text-main);
}

.session-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #484f58;
    transition: background 0.3s ease;
}

.online .dot { background: var(--success-color); box-shadow: 0 0 8px var(--success-color); }
.error .dot { background: var(--error-color); }
.online .status-text { color: var(--text-main); }

#terminal-container {
    flex: 1;
    padding: 10px;
    background: transparent;
}

.xterm {
    padding: 10px;
}

.xterm-viewport {
    background: transparent !important;
}

/* Auth Overlay */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    backdrop-filter: blur(8px);
}

.hidden { display: none !important; }

.modal {
    background: #161b22;
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    text-align: center;
}

.modal h2 {
    margin-bottom: 12px;
    font-size: 1.5rem;
    background: linear-gradient(135deg, #fff, #8b949e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.modal p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

input {
    width: 100%;
    padding: 12px 16px;
    background: #0d1117;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: #fff;
    font-family: var(--font-mono);
    margin-bottom: 16px;
    transition: border-color 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--accent-color);
}

button {
    width: 100%;
    padding: 12px;
    background: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.1s, opacity 0.2s;
}

button:hover {
    opacity: 0.9;
}

button:active {
    transform: scale(0.98);
}

.error-msg {
    color: var(--error-color);
    font-size: 0.85rem;
    margin-top: 10px;
    min-height: 1.2rem;
}

.hint {
    margin-top: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Loader for waiting state */
.loader {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--accent-color);
    border-radius: 50%;
    margin: 20px auto;
    animation: spin 1s linear infinite;
}

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