:root{--primary-orange: #F7941D;--primary-blue: #3A7CA5;--secondary-blue: #2C5F7F;--light-orange: #FFA940;--bg-gradient-start: #3A7CA5;--bg-gradient-end: #2C5F7F;--text-dark: #1a1a1a;--text-medium: #666;--text-light: #888;--border-color: #e5e7eb;--error-bg: #fef2f2;--error-border: #fecaca;--error-text: #dc2626;--success-bg: #f0fdf4;--success-border: #bbf7d0;--success-text: #16a34a}*{box-sizing:border-box;margin:0;padding:0;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;cursor:default}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:linear-gradient(135deg,var(--bg-gradient-start) 0%,var(--bg-gradient-end) 100%);min-height:100vh;display:flex;align-items:center;justify-content:center;color:var(--text-dark)}#root{width:100%;max-width:480px;padding:20px}.container{background:#fff;border-radius:20px;padding:48px 40px 40px;box-shadow:0 20px 60px #00000026,0 0 0 1px #0000000d;animation:fadeIn .5s cubic-bezier(.16,1,.3,1);position:relative}@keyframes fadeIn{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes logoFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.logo-container{display:flex;justify-content:center;margin-bottom:32px;animation:logoFloat 3s ease-in-out infinite}.logo-container img{width:80px;height:80px;filter:drop-shadow(0 4px 12px rgba(58,124,165,.2))}h1{font-size:28px;font-weight:700;margin-bottom:12px;background:linear-gradient(135deg,var(--primary-blue) 0%,var(--primary-orange) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-align:center}p{color:var(--text-medium);margin-bottom:32px;text-align:center;line-height:1.6;font-size:15px}.form-group{margin-bottom:24px}label{display:block;font-weight:600;margin-bottom:10px;color:var(--text-dark);font-size:14px;letter-spacing:.01em}input,select{width:100%;padding:14px 16px;border:2px solid var(--border-color);border-radius:10px;font-size:16px;transition:all .25s cubic-bezier(.4,0,.2,1);font-family:inherit;user-select:text;-webkit-user-select:text;-moz-user-select:text;-ms-user-select:text;cursor:text;background:#fff}select{cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%233A7CA5' d='M6 9L1 4h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:40px;appearance:none;-webkit-appearance:none;-moz-appearance:none}input:focus,select:focus{outline:none;border-color:var(--primary-blue);box-shadow:0 0 0 4px #3a7ca51a}input:hover:not(:focus):not(:disabled),select:hover:not(:focus):not(:disabled){border-color:#cbd5e1}input::placeholder{color:#aaa}button{width:100%;padding:15px;background:linear-gradient(135deg,var(--primary-blue) 0%,var(--secondary-blue) 100%);color:#fff;border:none;border-radius:10px;font-size:16px;font-weight:600;transition:all .25s cubic-bezier(.4,0,.2,1);font-family:inherit;cursor:pointer;position:relative;overflow:hidden}button:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,var(--primary-orange) 0%,var(--light-orange) 100%);opacity:0;transition:opacity .25s cubic-bezier(.4,0,.2,1)}button:hover:not(:disabled):before{opacity:1}button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #3a7ca54d}button:active:not(:disabled){transform:translateY(0);box-shadow:0 4px 12px #3a7ca533}button:disabled{background:#e5e7eb;color:#9ca3af;cursor:not-allowed;transform:none}button span{position:relative;z-index:1}button:not(:has(span)){position:relative;z-index:1}.secondary-button{background:transparent!important;color:var(--primary-blue)!important;border:2px solid var(--primary-blue)!important}.secondary-button:before{display:none}.secondary-button:hover:not(:disabled){background:var(--primary-blue)!important;color:#fff!important;box-shadow:0 8px 20px #3a7ca533}.secondary-button:disabled{background:transparent!important;border-color:#e5e7eb!important;color:#9ca3af!important}a{cursor:default}.error{background:var(--error-bg);color:var(--error-text);padding:14px 16px;border-radius:10px;margin-bottom:20px;font-size:14px;border:1px solid var(--error-border);display:flex;align-items:center;gap:10px;animation:shake .4s ease-in-out}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-8px)}75%{transform:translate(8px)}}.error:before{content:"⚠";font-size:18px;flex-shrink:0}.success{background:var(--success-bg);color:var(--success-text);padding:14px 16px;border-radius:10px;margin-bottom:20px;font-size:14px;border:1px solid var(--success-border);display:flex;align-items:center;gap:10px}.success:before{content:"✓";font-size:18px;flex-shrink:0;font-weight:700}.hint{font-size:13px;color:var(--text-light);margin-top:8px;line-height:1.4}.back-link{display:block;text-align:center;margin-top:20px;color:var(--primary-blue);text-decoration:none;font-size:14px;font-weight:500;transition:all .2s;cursor:pointer}.back-link:hover{color:var(--primary-orange);text-decoration:underline}@media(max-width:480px){#root{padding:12px}.container{padding:32px 24px;border-radius:16px}h1{font-size:24px}p{font-size:14px}.logo-container img{width:64px;height:64px}button{padding:13px;font-size:15px}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.loading{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}*:focus-visible{outline:2px solid var(--primary-orange);outline-offset:2px}html{scroll-behavior:smooth}.nicknames-section{margin-bottom:40px;padding-bottom:40px;border-bottom:2px solid var(--border-color)}.nicknames-section h2,.download-section h2{font-size:18px;font-weight:600;color:var(--text-dark);margin-bottom:16px;text-align:left}.empty-state{text-align:center;color:var(--text-light);font-style:italic;padding:24px;background:#f9fafb;border-radius:10px;margin-bottom:16px}.nicknames-list{list-style:none;margin-bottom:16px}.nickname-item{display:flex;align-items:center;justify-content:space-between;padding:16px;background:#f9fafb;border:2px solid var(--border-color);border-radius:10px;margin-bottom:12px;transition:all .2s}.nickname-item:hover{border-color:var(--primary-blue);background:#f0f9ff}.nickname-info{display:flex;flex-direction:column;gap:4px;flex:1}.nickname-name{font-size:16px;font-weight:600;color:var(--text-dark)}.nickname-date{font-size:13px;color:var(--text-light)}.delete-button{width:auto;padding:8px 12px;background:transparent;border:2px solid #ef4444;color:#ef4444;font-size:18px;border-radius:8px;cursor:pointer;transition:all .2s;min-width:44px}.delete-button:before{display:none}.delete-button:hover:not(:disabled){background:#ef4444;color:#fff;transform:scale(1.05);box-shadow:0 4px 12px #ef44444d}.delete-button:disabled{background:transparent;border-color:#fca5a5;color:#fca5a5;cursor:wait}.add-button{background:linear-gradient(135deg,var(--primary-orange) 0%,var(--light-orange) 100%);font-weight:600}.add-button:before{display:none}.add-button:hover:not(:disabled){background:linear-gradient(135deg,var(--light-orange) 0%,var(--primary-orange) 100%);box-shadow:0 8px 20px #f7941d4d}.download-section{margin-top:40px}.download-hint{font-size:14px;color:var(--text-medium);margin-bottom:20px;text-align:center}.download-primary{width:100%;padding:16px;background:linear-gradient(135deg,var(--primary-blue) 0%,var(--secondary-blue) 100%);color:#fff;border:none;border-radius:10px;font-size:17px;font-weight:600;transition:all .25s cubic-bezier(.4,0,.2,1);font-family:inherit;cursor:pointer;margin-bottom:20px}.download-primary:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,var(--primary-orange) 0%,var(--light-orange) 100%);opacity:0;transition:opacity .25s cubic-bezier(.4,0,.2,1)}.download-primary:hover:before{opacity:1}.download-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px #3a7ca54d}.download-primary span{position:relative;z-index:1}.download-details{margin-top:20px;text-align:left}.download-details summary{cursor:pointer;color:var(--primary-blue);font-weight:500;font-size:14px;padding:12px;border-radius:8px;transition:all .2s;list-style:none;-webkit-user-select:none;user-select:none}.download-details summary::-webkit-details-marker{display:none}.download-details summary:before{content:"▶";display:inline-block;margin-right:8px;transition:transform .2s;font-size:12px}.download-details[open] summary:before{transform:rotate(90deg)}.download-details summary:hover{background:#f0f9ff}.download-platforms{display:flex;flex-direction:column;gap:16px;margin-top:16px;padding:16px;background:#f9fafb;border-radius:10px}.platform-section{display:flex;flex-direction:column;gap:8px}.platform-title{font-weight:600;color:var(--text-dark);font-size:14px;margin-bottom:4px}@media(max-width:480px){.nickname-item{padding:12px}.nickname-name{font-size:15px}.nickname-date{font-size:12px}.delete-button{padding:6px 10px;font-size:16px}}