:root{--bg-primary: #121212;--bg-secondary: #1e1e1e;--bg-tertiary: #2d2d2d;--accent: #ffd700;--accent-hover: #ffea70;--text-primary: #e0e0e0;--text-secondary: #aaaaaa;--text-muted: #666666;--border-color: #333333;--success: #4caf50;--danger: #f44336;--max-width: 1200px;--border-radius: 8px;--transition-speed: .3s}*{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}body{background-color:var(--bg-primary);color:var(--text-primary);display:flex;flex-direction:column;min-height:100vh;overflow-x:hidden}h1,h2,h3,h4{color:#fff;font-weight:600}a{color:var(--accent);text-decoration:none;transition:color var(--transition-speed)}a:hover{color:var(--accent-hover);text-decoration:underline}header{width:100%;background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:100}.nav-container{max-width:var(--max-width);margin:0 auto;padding:15px 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auto}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border-radius:var(--border-radius);font-size:.95rem;font-weight:600;cursor:pointer;transition:all var(--transition-speed);border:none;gap:8px}.btn-primary{background-color:var(--accent);color:#000}.btn-primary:hover{background-color:var(--accent-hover);transform:translateY(-1px)}.btn-secondary{background-color:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background-color:#3d3d3d;color:#fff}.btn-danger{background-color:var(--danger);color:#fff}.btn-danger:hover{background-color:#d32f2f}.card{background-color:var(--bg-secondary);border-radius:10px;padding:30px;border:1px solid var(--border-color);box-shadow:0 4px 12px #0006;width:100%}footer{background-color:var(--bg-secondary);border-top:1px solid var(--border-color);padding:30px 20px;margin-top:auto;width:100%;text-align:center;font-size:.9rem;color:var(--text-secondary)}.footer-content{max-width:var(--max-width);margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:15px}.footer-links{display:flex;gap:20px}.progress-container{margin-top:20px;width:100%}.progress-bg{width:100%;height:10px;background-color:var(--bg-tertiary);border-radius:5px;overflow:hidden}.progress-bar{width:0%;height:100%;background-color:var(--accent);border-radius:5px;transition:width var(--transition-speed) ease}#progress-text{margin-top:10px;color:var(--text-secondary);font-size:.9rem}.alert{padding:12px 20px;border-radius:var(--border-radius);margin-bottom:20px;font-weight:500}.alert-success{background-color:#4caf5026;color:#81c784;border:1px solid rgba(76,175,80,.3)}.alert-error{background-color:#f4433626;color:#e57373;border:1px solid rgba(244,67,54,.3)}@media (max-width: 768px){.nav-container{flex-direction:row;justify-content:space-between;padding:12px 16px;gap:10px}.logo-text{font-size:1.3rem}.nav-links{gap:10px}.nav-link{padding:6px 10px;font-size:.9rem}#membershipBtn{padding:4px 10px;font-size:.85rem}.footer-content{flex-direction:column;gap:15px;text-align:center}}@media (max-width: 480px){.nav-container{flex-direction:column;align-items:center;gap:12px}.nav-links{width:100%;justify-content:center}.auth-box{padding:20px;border-radius:var(--border-radius)}.auth-header h5{font-size:1.3rem}}.auth-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#000000d9;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:2000;align-items:center;justify-content:center;padding:20px}.auth-overlay.show{display:flex}.auth-box{background:#1a1a1a;border:1px solid #333;border-radius:12px;padding:30px;width:100%;max-width:400px;box-shadow:0 10px 25px #00000080}.auth-header{text-align:center;margin-bottom:25px}.auth-icon{font-size:2.5rem;display:block;margin-bottom:10px}.auth-header h5{color:#fff;font-size:1.5rem;margin-bottom:8px}.auth-header p{color:var(--text-secondary);font-size:.9rem;line-height:1.4}.auth-tabs-row{display:flex;margin-bottom:20px;border-bottom:1px solid #333}.auth-tab-btn{flex:1;background:none;border:none;color:#777;padding:10px;font-size:.95rem;font-weight:500;cursor:pointer;border-bottom:2px solid transparent;transition:all var(--transition-speed)}.auth-tab-btn.active{color:var(--accent);border-bottom-color:var(--accent)}.form-group{margin-bottom:15px}.form-control{width:100%;padding:10px 14px;background-color:#222;border:1px solid #333;border-radius:var(--border-radius);color:#fff;font-size:.95rem;transition:all var(--transition-speed)}.form-control:focus{outline:none;background-color:#2b2b2b;border-color:var(--accent);box-shadow:0 0 0 3px 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#2a3a47;display:flex;align-items:center;gap:10px;padding:12px 16px;position:sticky;top:0;z-index:2}.chat-viewport.android .chat-avatar{width:36px;height:36px;border-radius:50%;background:#1a73e8;color:#fff;font-size:.9rem;font-weight:600;display:flex;align-items:center;justify-content:center;flex-shrink:0}.chat-viewport.android .chat-contact-name{font-size:.95rem;font-weight:500;color:#e8eaed}.chat-viewport.android .chat-contact-sub{font-size:.75rem;color:#9aa0a6}.chat-viewport.android .chat-messages{padding:16px 12px;display:flex;flex-direction:column;gap:4px}.chat-viewport.android .chat-bubble-wrap{display:flex;flex-direction:column}.chat-viewport.android .chat-bubble-wrap.me{align-items:flex-end}.chat-viewport.android .chat-bubble-wrap.them{align-items:flex-start}.chat-viewport.android .chat-bubble{max-width:72%;padding:10px 14px;border-radius:18px;font-size:.93rem;line-height:1.45;word-break:break-word}.chat-viewport.android .chat-bubble-wrap.me .chat-bubble{background:#004a77;color:#e8eaed;border-bottom-right-radius:4px}.chat-viewport.android .chat-bubble-wrap.them .chat-bubble{background:#243140;color:#e8eaed;border-bottom-left-radius:4px}.chat-viewport.android .bubble-time{font-size:.68rem;color:#9aa0a6;margin:2px 6px 6px}.chat-viewport.android .chat-date-divider{text-align:center;font-size:.72rem;color:#9aa0a6;margin:12px 0 4px;text-transform:uppercase;letter-spacing:.04em}.chat-viewport.ios.dark{background:#000}.chat-viewport.ios.dark .chat-header-bar{background:#141414f2;border-bottom:1px solid #2c2c2e}.chat-viewport.ios.dark .chat-contact-name{color:#fff}.chat-viewport.ios.dark .chat-contact-sub{color:#8e8e93}.chat-viewport.ios.dark .chat-bubble-wrap.them .chat-bubble{background:#262629;color:#fff}.chat-viewport.ios.dark .bubble-time,.chat-viewport.ios.dark .chat-date-divider{color:#8e8e93}.chat-viewport.android.light{background:#fff}.chat-viewport.android.light .chat-header-bar{background:#f1f3f4;border-bottom:1px solid #dae0e2}.chat-viewport.android.light .chat-contact-name{color:#202124}.chat-viewport.android.light .chat-contact-sub{color:#5f6368}.chat-viewport.android.light .chat-bubble-wrap.them .chat-bubble{background:#f1f3f4;color:#202124}.chat-viewport.android.light .chat-bubble-wrap.me .chat-bubble{background:#e8f0fe;color:#1a73e8}.chat-viewport.android.light .bubble-time,.chat-viewport.android.light .chat-date-divider{color:#5f6368}@media (max-width: 600px){.stitch-title{font-size:1.8rem}.settings-grid{grid-template-columns:1fr}.preview-topbar{flex-direction:column;align-items:flex-start}.thumb-item{width:64px;height:90px}.chat-viewport{max-height:500px}}