*{margin:0;padding:0;box-sizing:border-box}
:root{--blue:#00a2ff;--purple:#8b5cf6;--gradient:linear-gradient(135deg,#00a2ff,#8b5cf6);--bg:#f8fafc;--card-bg:#fff;--text:#1e293b;--text-secondary:#64748b;--border:#e2e8f0;--radius:12px;--shadow:0 4px 24px rgba(0,0,0,.08)}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}
.container{max-width:640px;margin:0 auto;padding:20px}

/* Header */
.header{text-align:center;padding:40px 0 20px}
.header h1{font-size:2em;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.header p{color:var(--text-secondary);margin-top:8px;font-size:1.05em}

/* Form */
.form-card{background:var(--card-bg);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);margin-bottom:24px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-weight:600;margin-bottom:6px;font-size:.9em}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:8px;font-size:1em;transition:border-color .2s}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--blue)}
.form-group textarea{resize:vertical;min-height:80px}
.form-group .hint{font-size:.8em;color:var(--text-secondary);margin-top:4px}
.form-row{display:flex;gap:12px;align-items:flex-end}
.form-row .form-group{flex:1}

/* Mode toggle */
.mode-toggle{display:flex;gap:0;border:1px solid var(--border);border-radius:8px;overflow:hidden;margin-bottom:16px}
.mode-toggle button{flex:1;padding:10px;border:none;background:var(--card-bg);cursor:pointer;font-size:.9em;font-weight:500;transition:all .2s}
.mode-toggle button.active{background:var(--gradient);color:#fff}
.mode-toggle button:hover:not(.active){background:#f1f5f9}

/* Upload zone */
.upload-zone{border:2px dashed var(--border);border-radius:12px;padding:20px;text-align:center;cursor:pointer;transition:border-color .2s;position:relative;min-height:100px;display:flex;align-items:center;justify-content:center}
.upload-zone:hover{border-color:var(--blue)}
.upload-prompt{color:var(--text-secondary);line-height:1.8}
.avatar-preview{max-width:120px;max-height:120px;border-radius:50%;object-fit:cover}
.upload-status{font-size:.85em;color:var(--blue)}

/* Card fields */
.card-fields{display:none}
.card-fields.visible{display:block}

/* Buttons */
.btn-primary{display:block;width:100%;padding:14px;background:var(--gradient);color:#fff;border:none;border-radius:8px;font-size:1.05em;font-weight:600;cursor:pointer;transition:opacity .2s}
.btn-primary:hover{opacity:.9}
.btn-primary:disabled{opacity:.5;cursor:not-allowed}
.btn-secondary{display:inline-block;padding:10px 20px;background:transparent;color:var(--blue);border:2px solid var(--blue);border-radius:8px;font-size:.95em;font-weight:500;cursor:pointer;text-decoration:none;transition:all .2s}
.btn-secondary:hover{background:var(--blue);color:#fff}

/* Result */
.result{display:none;background:var(--card-bg);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);text-align:center;margin-bottom:24px}
.result.visible{display:block;animation:fade-up .3s ease}
.result-url{font-size:1.3em;font-weight:700;color:var(--blue);word-break:break-all;margin:16px 0}
.result-actions{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:16px}
.btn-copy{padding:10px 24px;background:var(--gradient);color:#fff;border:none;border-radius:8px;font-size:.95em;cursor:pointer;font-weight:500}
.btn-copy:hover{opacity:.9}
.btn-copy.copied{background:#10b981}
.qr-container{margin:20px auto 0;padding:16px 16px 8px;background:#fff;border-radius:16px;box-shadow:0 2px 12px rgba(0,0,0,.06);border:1px solid var(--border);display:flex;flex-direction:column;align-items:center;width:fit-content}
.qr-container img[src^="data:"]{display:none!important}
.qr-container canvas{border-radius:4px;display:block!important}
.qr-label{font-size:.8em;color:#94a3b8;margin-top:8px;text-align:center}

/* Error */
.error-msg{color:#ef4444;font-size:.9em;margin-top:8px;display:none}
.error-msg.visible{display:block}

/* Footer */
.footer{text-align:center;padding:40px 0;color:var(--text-secondary);font-size:.85em}
.footer a{color:var(--blue);text-decoration:none}
.footer a:hover{text-decoration:underline}

/* Card page */
.card-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.card-container{background:var(--card-bg);border-radius:16px;padding:40px;box-shadow:var(--shadow);text-align:center;max-width:480px;width:100%;animation:card-enter .4s ease}
.card-avatar{width:120px;height:120px;border-radius:50%;object-fit:cover;margin:0 auto 20px;display:block}
.card-avatar-placeholder{width:120px;height:120px;border-radius:50%;background:var(--gradient);margin:0 auto 20px;display:flex;align-items:center;justify-content:center;font-size:3em;color:#fff}
.card-title{font-size:1.8em;font-weight:700;margin-bottom:8px}
.card-description{color:var(--text-secondary);margin-bottom:24px;font-size:1.05em;line-height:1.5;white-space:pre-line}
.card-btn{display:inline-block;padding:14px 40px;background:var(--gradient);color:#fff;border-radius:10px;font-size:1.1em;font-weight:600;text-decoration:none;transition:all .2s}
.card-btn:hover{opacity:.9;transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,162,255,.3)}
.card-stats{margin-top:24px;color:var(--text-secondary);font-size:.85em}
.card-qr{margin:24px auto 0;padding:12px 12px 4px;background:#fff;border-radius:12px;box-shadow:0 2px 8px rgba(0,0,0,.04);border:1px solid var(--border);display:flex;flex-direction:column;align-items:center;width:fit-content}
.card-qr img[src^="data:"]{display:none!important}
.card-qr canvas{border-radius:4px;display:block!important}
.card-footer{margin-top:32px;font-size:.8em;color:#94a3b8}
.card-footer a{color:var(--blue);text-decoration:none}

/* Banner */
.tg2max-banner{background:linear-gradient(135deg,#00a2ff10,#8b5cf610);border:1px solid var(--border);border-radius:var(--radius);padding:16px;text-align:center;margin-top:24px}
.tg2max-banner p{margin-bottom:8px;font-size:.95em}

/* Animations */
@keyframes fade-up{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@keyframes card-enter{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}

/* Responsive */
@media(max-width:480px){
.container{padding:12px}
.header h1{font-size:1.5em}
.form-card,.result{padding:16px}
.form-row{flex-direction:column;gap:0}
.card-container{padding:24px}
.card-title{font-size:1.4em}
}