.ring-designer{--rd-bg-primary: #1a1a2e;--rd-bg-secondary: #16162a;--rd-bg-tertiary: #0d0d1a;--rd-border: #2a2a4a;--rd-text-primary: #e0e0f0;--rd-text-secondary: #b0b0d0;--rd-text-muted: #8888aa;--rd-accent: #5050a0;--rd-accent-hover: #6060b0;--rd-success: #40a060;--rd-warning: #c0a040;--rd-error: #c04040;--rd-cyan: #00d0ff;--rd-green: #00ff88;--rd-radius: 8px;--rd-radius-sm: 4px;--rd-shadow: 0 4px 20px rgba(0, 0, 0, .3);--rd-transition: .2s ease}.ring-designer[data-theme=light]{--rd-bg-primary: #f4f4f8;--rd-bg-secondary: #eaeaf0;--rd-bg-tertiary: #dddde8;--rd-border: #c0c0d0;--rd-text-primary: #1a1a2e;--rd-text-secondary: #2a2a4a;--rd-text-muted: #4a4a6a;--rd-accent: #4040a0;--rd-accent-hover: #5050b0;--rd-cyan: #0070cc;--rd-green: #008844;--rd-shadow: 0 4px 20px rgba(0, 0, 0, .12)}.ring-designer[data-theme=contrast]{--rd-bg-primary: #000000;--rd-bg-secondary: #0a0a0a;--rd-bg-tertiary: #111111;--rd-border: #555555;--rd-text-primary: #ffffff;--rd-text-secondary: #dddddd;--rd-text-muted: #aaaaaa;--rd-accent: #7070ff;--rd-accent-hover: #9090ff;--rd-cyan: #00eeff;--rd-green: #00ff88;--rd-shadow: 0 4px 20px rgba(0, 0, 0, .8)}.ring-designer[data-theme=warm]{--rd-bg-primary: #1e1810;--rd-bg-secondary: #181410;--rd-bg-tertiary: #110e08;--rd-border: #3a3020;--rd-text-primary: #f0e8d8;--rd-text-secondary: #c0a880;--rd-text-muted: #806848;--rd-accent: #a07030;--rd-accent-hover: #b08040;--rd-cyan: #ffcc44;--rd-green: #88cc44;--rd-shadow: 0 4px 20px rgba(0, 0, 0, .4)}.ring-designer{position:relative;font-family:Segoe UI,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--rd-bg-primary);color:var(--rd-text-primary);border:3px solid #000000;border-radius:12px;box-shadow:var(--rd-shadow);overflow:hidden;max-width:1400px;margin:0 auto}.ring-designer *{box-sizing:border-box}.rd-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;background:var(--rd-bg-secondary);border-bottom:1px solid var(--rd-border);flex-wrap:wrap;gap:4px}.rd-title{margin:0;font-size:1.5rem;font-weight:800;color:var(--rd-text-primary)}.rd-subtitle{width:100%;margin:0;font-size:.9rem;font-weight:500;color:var(--rd-text-secondary);order:10}.rd-pricing{display:flex;gap:16px;align-items:center}.rd-area{font-size:.9rem;color:var(--rd-text-secondary)}.rd-price{font-size:1rem;font-weight:600;color:var(--rd-cyan);padding:6px 12px;background:#00d0ff1a;border-radius:var(--rd-radius-sm)}.rd-templates-btn{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,#8b5cf6,#ec4899);color:#fff;border:none;border-radius:999px;padding:8px 18px;font-size:.88rem;font-weight:700;cursor:pointer;box-shadow:0 4px 14px #8b5cf666;transition:transform .15s,box-shadow .15s;letter-spacing:.01em}.rd-templates-btn:hover{transform:translateY(-1px);box-shadow:0 6px 18px #8b5cf680}.rd-templates-btn-icon{font-size:1rem}.rd-templates-modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:10000;display:flex;align-items:center;justify-content:center;padding:20px}.rd-templates-modal[hidden]{display:none}.rd-templates-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#000000a6;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.rd-templates-dialog{position:relative;background:var(--rd-bg-secondary);border:1px solid var(--rd-border);border-radius:14px;width:100%;max-width:880px;max-height:90vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 20px 60px #0006}.rd-templates-header{padding:20px 24px;border-bottom:1px solid var(--rd-border);display:flex;justify-content:space-between;align-items:flex-start;gap:16px;background:var(--rd-bg-primary)}.rd-templates-header h3{margin:0 0 4px;font-size:1.2rem;font-weight:700;color:var(--rd-text-primary)}.rd-templates-header p{margin:0;font-size:.82rem;color:var(--rd-text-secondary)}.rd-templates-close{background:none;border:none;color:var(--rd-text-secondary);font-size:1.8rem;cursor:pointer;padding:0;line-height:1;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:6px}.rd-templates-close:hover{background:var(--rd-bg-tertiary);color:var(--rd-text-primary)}.rd-templates-body{padding:20px 24px;overflow-y:auto;flex:1}.rd-templates-loading,.rd-templates-empty{padding:40px;text-align:center;color:var(--rd-text-secondary);font-size:.9rem}.rd-templates-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}.rd-templates-card{background:var(--rd-bg-primary);border:2px solid var(--rd-border);border-radius:10px;padding:12px;cursor:pointer;text-align:left;transition:transform .15s,border-color .15s,box-shadow .15s;font-family:inherit}.rd-templates-card:hover{transform:translateY(-3px);border-color:#8b5cf6;box-shadow:0 8px 20px #8b5cf633}.rd-templates-thumb{background:#fff;border-radius:6px;min-height:140px;display:flex;align-items:center;justify-content:center;margin-bottom:10px;overflow:hidden}.rd-templates-thumb img{max-width:100%;max-height:140px;object-fit:contain}.rd-templates-no-thumb{color:#aaa;font-size:.8rem}.rd-templates-name{font-weight:700;font-size:.95rem;color:var(--rd-text-primary);margin-bottom:4px}.rd-templates-difficulty{font-size:.68rem;text-transform:uppercase;letter-spacing:.05em;font-weight:700;margin-bottom:6px;padding:2px 8px;border-radius:4px;display:inline-block}.rd-templates-diff-easy{background:#22c55e26;color:#22c55e}.rd-templates-diff-intermediate{background:#eab30826;color:#eab308}.rd-templates-diff-advanced{background:#ef444426;color:#ef4444}.rd-templates-note{font-size:.78rem;color:var(--rd-text-secondary);line-height:1.45}.rd-main{display:grid;grid-template-columns:320px 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