:root{--font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--primary: #2563EB;--primary-light: #DBEAFE;--primary-dark: #1D4ED8;--primary-glow: rgba(37, 99, 235, .15);--secondary: #3B82F6;--accent: #06B6D4;--accent-light: #CFFAFE;--accent-dark: #0891B2;--accent-glow: rgba(6, 182, 212, .15);--success: #22C55E;--success-dark: #16A34A;--success-glow: rgba(34, 197, 94, .15);--danger: #EF4444;--danger-dark: #DC2626;--danger-glow: rgba(239, 68, 68, .15);--warning: #F59E0B;--warning-glow: rgba(245, 158, 11, .15);--online: #22C55E;--bg-body: #F8FAFC;--bg-panel: #FFFFFF;--bg-sidebar: #FFFFFF;--bg-chat-list: #F8FAFC;--bg-chat-window: #FFFFFF;--bg-input: #F1F5F9;--bg-input-hover: #E2E8F0;--bg-card: #FFFFFF;--bg-card-hover: #F1F5F9;--bg-card-active: rgba(37, 99, 235, .08);--border-color: #E2E8F0;--border-color-hover: #CBD5E1;--border-focus: #2563EB;--text-primary: #111827;--text-secondary: #6B7280;--text-muted: #9CA3AF;--text-on-primary: #FFFFFF;--glass-bg: rgba(255, 255, 255, .85);--glass-border: rgba(226, 232, 240, .8);--glass-blur: blur(16px);--glass-shadow: 0 20px 40px -15px rgba(15, 23, 42, .08);--card-shadow: 0 10px 30px -10px rgba(15, 23, 42, .04);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--radius-xl: 30px;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .4s cubic-bezier(.4, 0, .2, 1)}body.theme-cosmic{--primary: #6366F1;--primary-light: #C7D2FE;--primary-dark: #4F46E5;--primary-glow: rgba(99, 102, 241, .2);--secondary: #22D3EE;--accent: #22D3EE;--accent-light: #67E8F9;--accent-dark: #0891B2;--accent-glow: rgba(34, 211, 238, .18);--bg-body: #0F172A;--bg-panel: #1E293B;--bg-sidebar: #0F172A;--bg-chat-list: #1E293B;--bg-chat-window: #0F172A;--bg-card: #1E293B;--bg-card-hover: #334155;--bg-card-active: rgba(99, 102, 241, .15);--border-color: #334155;--border-color-hover: #475569;--border-focus: #6366F1;--text-primary: #F8FAFC;--text-secondary: #94A3B8;--text-muted: #64748B;--glass-bg: rgba(30, 41, 59, .85);--glass-border: rgba(255, 255, 255, .05)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-body);color:var(--text-primary);height:100vh;width:100%;overflow:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:#fff3}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes pulseGlow{0%,to{box-shadow:0 0 15px var(--primary-glow)}50%{box-shadow:0 0 25px #6366f166}}@keyframes rotateSpinner{to{transform:rotate(360deg)}}.glass-panel{background:var(--glass-bg);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:var(--radius-lg);box-shadow:var(--glass-shadow)}.gradient-text{background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.premium-input-group{display:flex;flex-direction:column;gap:6px;margin-bottom:18px;width:100%}.premium-input-group label{font-size:13px;font-weight:600;color:var(--text-secondary);letter-spacing:.5px;text-transform:uppercase;transition:var(--transition-fast)}.premium-input-group input,.premium-input-group textarea,.premium-input-group select{width:100%;padding:12px 16px;font-family:var(--font-family);font-size:14px;color:var(--text-primary);background-color:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-md);outline:none;transition:all var(--transition-fast)}.premium-input-group input::placeholder,.premium-input-group textarea::placeholder,.premium-input-group select::placeholder{color:var(--text-muted)}.premium-input-group input:hover,.premium-input-group textarea:hover,.premium-input-group select:hover{background-color:var(--bg-input-hover);border-color:var(--border-color-hover)}.premium-input-group input:focus,.premium-input-group textarea:focus,.premium-input-group select:focus{background-color:var(--bg-input-hover);border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}.premium-input-group input:disabled,.premium-input-group textarea:disabled,.premium-input-group select:disabled{opacity:.5;cursor:not-allowed}.premium-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;font-family:var(--font-family);font-size:14px;font-weight:600;color:var(--text-on-primary);background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-normal);box-shadow:0 4px 15px var(--primary-glow)}.premium-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #6366f166;background:linear-gradient(135deg,var(--primary-light) 0%,var(--accent-light) 100%)}.premium-btn:active:not(:disabled){transform:translateY(0)}.premium-btn:disabled{background:var(--bg-card);color:var(--text-muted);box-shadow:none;cursor:not-allowed;border:1px solid var(--border-color)}.premium-btn-secondary{background:var(--bg-card);border:1px solid var(--border-color);color:var(--text-primary);box-shadow:none}.premium-btn-secondary:hover:not(:disabled){background:var(--bg-card-hover);border-color:var(--border-color-hover);color:var(--text-primary);transform:translateY(-2px)}.premium-btn-danger{background:linear-gradient(135deg,var(--danger) 0%,#be123c 100%);box-shadow:0 4px 15px var(--danger-glow)}.premium-btn-danger:hover:not(:disabled){background:linear-gradient(135deg,#f43f5e,#e11d48);box-shadow:0 6px 20px #f43f5e4d}