:root {
    --bg-base: #06080d;
    --bg-card: rgba(13, 18, 31, 0.85);
    --border-card: rgba(0, 240, 255, 0.2);
    --accent-cyan: #00f0ff;
    --accent-green: #00ff88;
    --accent-purple: #9d00ff;
    --accent-yellow: #ffb700;
    --accent-red: #ff0055;
    --text-main: #e2e8f0;
    --text-muted: #64748b;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; }
body { background: var(--bg-base); color: var(--text-main); display: flex; flex-direction: column; min-height: 100vh; overflow-x: hidden; }

.app-header {
    background: rgba(10, 14, 23, 0.95);
    border-bottom: 1px solid var(--border-card);
    padding: 12px 16px;
    display: flex; justify-content: space-between; align-items: center;
}
.brand-title { font-weight: 800; font-size: 1rem; color: var(--accent-cyan); letter-spacing: 1px; }
.brand-badge { background: rgba(0, 240, 255, 0.1); border: 1px solid var(--accent-cyan); font-size: 0.65rem; padding: 2px 6px; border-radius: 4px; margin-left: 6px; }

.header-status { display: flex; align-items: center; gap: 6px; font-size: 0.75rem; color: var(--accent-green); }
.status-indicator { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-green); box-shadow: 0 0 8px var(--accent-green); }

.mobile-nav {
    display: flex; background: rgba(13, 18, 31, 0.95);
    border-bottom: 1px solid var(--border-card); overflow-x: auto;
}
.nav-btn {
    flex: 1; min-width: 70px; padding: 12px 8px; background: transparent; border: none;
    color: var(--text-muted); font-size: 0.75rem; font-weight: 600; cursor: pointer; min-height: 44px;
}
.nav-btn.active { color: var(--accent-cyan); border-bottom: 2px solid var(--accent-cyan); }

.content-container { flex: 1; padding: 12px; display: flex; flex-direction: column; gap: 12px; }
.tab-content { display: none; flex-direction: column; gap: 12px; }
.tab-content.active { display: flex; }

.telemetry-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
@media (min-width: 600px) { .telemetry-grid { grid-template-columns: repeat(4, 1fr); } }

.tele-card { background: var(--bg-card); border: 1px solid var(--border-card); padding: 10px; border-radius: 6px; display: flex; flex-direction: column; }
.tele-label { font-size: 0.65rem; color: var(--text-muted); }
.tele-value { font-size: 0.9rem; font-weight: bold; color: var(--accent-cyan); margin-top: 4px; }

.section-panel { background: var(--bg-card); border: 1px solid var(--border-card); border-radius: 6px; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.panel-header { font-size: 0.8rem; font-weight: bold; color: var(--accent-cyan); letter-spacing: 0.5px; border-bottom: 1px solid rgba(255,255,255,0.05); padding-bottom: 6px; }

.primary-btn { background: var(--accent-cyan); color: #000; font-weight: bold; border: none; padding: 12px 16px; border-radius: 6px; cursor: pointer; min-height: 44px; }
.secondary-btn { background: transparent; border: 1px solid var(--text-muted); color: #fff; padding: 12px 16px; border-radius: 6px; cursor: pointer; min-height: 44px; }

.form-group { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.form-group label { font-size: 0.75rem; color: var(--text-muted); }
.form-group input, .form-group select { background: rgba(0,0,0,0.5); border: 1px solid var(--border-card); color: #fff; padding: 10px; border-radius: 4px; font-size: 0.85rem; min-height: 44px; }

.chat-container { display: flex; flex-direction: column; height: 60vh; background: var(--bg-card); border: 1px solid var(--border-card); border-radius: 6px; padding: 10px; }
.chat-messages { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; padding-right: 4px; }
.chat-msg { padding: 8px 12px; border-radius: 6px; font-size: 0.8rem; max-width: 85%; }
.chat-msg.agent { background: rgba(0, 240, 255, 0.1); border-left: 3px solid var(--accent-cyan); align-self: flex-start; }
.chat-msg.user { background: rgba(0, 255, 136, 0.1); border-right: 3px solid var(--accent-green); align-self: flex-end; }
.chat-input-row { display: flex; gap: 6px; margin-top: 8px; }

.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.85); display: none; justify-content: center; align-items: center; z-index: 1000; padding: 16px; }
.modal-content { background: #0b101d; border: 1px solid var(--accent-cyan); border-radius: 8px; width: 100%; max-width: 440px; padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; }

.empty-state { font-size: 0.75rem; color: var(--text-muted); text-align: center; padding: 12px; }
.agent-cards-grid { display: grid; grid-template-columns: 1fr; gap: 8px; }
@media (min-width: 600px) { .agent-cards-grid { grid-template-columns: repeat(2, 1fr); } }