:root{--bg-primary: #0a0e17;--bg-secondary: #131b2e;--bg-tertiary: #1e293b;--bg-card: rgba(19, 27, 46, .7);--border-color: rgba(255, 255, 255, .1);--border-focus: #6366f1;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--accent-primary: #6366f1;--accent-hover: #4f46e5;--accent-glow: rgba(99, 102, 241, .35);--accent-success: #10b981;--accent-danger: #ef4444;--accent-danger-hover: #dc2626;--accent-warning: #f59e0b;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 18px;--radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 30px rgba(0, 0, 0, .6);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden}#root{display:flex;flex-direction:column;min-height:100vh;width:100%}.navbar{display:flex;align-items:center;justify-content:space-between;padding:1rem 2rem;background:#0a0e17cc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:50}.brand{display:flex;align-items:center;gap:.75rem;font-size:1.35rem;font-weight:700;color:var(--text-primary);text-decoration:none}.brand-icon{color:var(--accent-primary);filter:drop-shadow(0 0 8px var(--accent-glow))}.nav-actions{display:flex;align-items:center;gap:1rem}.badge{display:inline-flex;align-items:center;gap:.35rem;padding:.25rem .65rem;border-radius:var(--radius-full);font-size:.75rem;font-weight:600}.badge-success{background:#10b98126;color:var(--accent-success);border:1px solid rgba(16,185,129,.3)}.badge-warning{background:#f59e0b26;color:var(--accent-warning);border:1px solid rgba(245,158,11,.3)}.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1.25rem;border-radius:var(--radius-md);font-weight:600;font-size:.95rem;cursor:pointer;transition:all .2s ease;border:none;outline:none}.btn:focus-visible{box-shadow:0 0 0 3px var(--accent-glow)}.btn-primary{background:var(--accent-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover);box-shadow:0 0 16px var(--accent-glow)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover:not(:disabled){background:#27354a}.btn-danger{background:var(--accent-danger);color:#fff}.btn-danger:hover:not(:disabled){background:var(--accent-danger-hover)}.btn-icon{padding:.65rem;border-radius:var(--radius-full)}.btn:disabled{opacity:.5;cursor:not-allowed}.landing-hero{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:4rem 2rem;max-width:900px;margin:0 auto}.landing-title{font-size:3.5rem;font-weight:800;line-height:1.15;margin-bottom:1.5rem;background:linear-gradient(135deg,#fff 40%,#818cf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.landing-subtitle{font-size:1.25rem;color:var(--text-secondary);line-height:1.6;margin-bottom:2.5rem;max-width:680px}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem;width:100%;margin-top:3rem}.feature-card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:1.75rem;text-align:left;transition:transform .2s ease,border-color .2s ease}.feature-card:hover{transform:translateY(-4px);border-color:#6366f166}.feature-icon{color:var(--accent-primary);margin-bottom:1rem}.feature-title{font-size:1.15rem;font-weight:600;margin-bottom:.5rem}.feature-desc{color:var(--text-secondary);font-size:.9rem;line-height:1.5}.call-layout{flex:1;display:flex;height:calc(100vh - 72px);overflow:hidden;position:relative}.video-container{flex:1;position:relative;background:#000;display:flex;align-items:center;justify-content:center;overflow:hidden}.remote-video{width:100%;height:100%;object-fit:cover}.local-video-preview{position:absolute;top:1.5rem;right:1.5rem;width:240px;height:140px;border-radius:var(--radius-md);object-fit:cover;border:2px solid rgba(255,255,255,.2);box-shadow:var(--shadow-lg);z-index:20;background:#000;transform:scaleX(-1)}.call-controls-overlay{position:absolute;bottom:2rem;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:1rem;padding:.75rem 1.25rem;background:#0f172ad9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:var(--radius-full);box-shadow:var(--shadow-lg);z-index:30}.chat-panel{width:360px;background:var(--bg-secondary);border-left:1px solid var(--border-color);display:flex;flex-direction:column;height:100%}.chat-header{padding:1rem 1.25rem;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;font-weight:600}.chat-messages{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:.75rem}.chat-bubble{max-width:80%;padding:.65rem .95rem;border-radius:var(--radius-md);font-size:.92rem;line-height:1.4;word-break:break-word}.chat-bubble-self{align-self:flex-end;background:var(--accent-primary);color:#fff;border-bottom-right-radius:2px}.chat-bubble-peer{align-self:flex-start;background:var(--bg-tertiary);color:var(--text-primary);border-bottom-left-radius:2px}.chat-input-area{padding:.75rem 1rem;border-top:1px solid var(--border-color);display:flex;align-items:center;gap:.5rem;position:relative}.chat-input{flex:1;background:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-primary);padding:.65rem .9rem;border-radius:var(--radius-md);outline:none;font-size:.92rem}.chat-input:focus{border-color:var(--border-focus)}.emoji-picker-container{position:absolute;bottom:60px;right:16px;z-index:60;box-shadow:var(--shadow-lg);border-radius:var(--radius-md);overflow:hidden}.quick-emoji-bar{display:flex;align-items:center;gap:.35rem;padding:.35rem 1rem;border-top:1px solid var(--border-color);background:var(--bg-primary);overflow-x:auto}.quick-emoji-btn{background:transparent;border:none;font-size:1.15rem;cursor:pointer;padding:.2rem .35rem;border-radius:var(--radius-sm);transition:transform var(--transition-fast),background var(--transition-fast)}.quick-emoji-btn:hover{background:var(--bg-tertiary);transform:scale(1.2)}.chat-alert-banner{padding:.35rem .75rem;background:#6366f126;border:1px solid rgba(99,102,241,.3);color:#c7d2fe;font-size:.8rem;border-radius:var(--radius-sm);margin:.25rem 1rem;text-align:center}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:100;padding:1rem}.modal-content{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:100%;max-width:440px;padding:2rem;box-shadow:var(--shadow-lg)}.form-group{margin-bottom:1.25rem}.form-label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.4rem;color:var(--text-secondary)}.form-input,.form-select{width:100%;background:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-primary);padding:.75rem 1rem;border-radius:var(--radius-md);outline:none;font-size:.95rem}.form-input:focus,.form-select:focus{border-color:var(--border-focus)}@media(max-width:768px){.call-layout{flex-direction:column}.chat-panel{width:100%;height:35vh}.local-video-preview{width:120px;height:80px;top:1rem;right:1rem}}