:root{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-card:#1a1a26;--bg-card-hover:#222233;--bg-input:#161622;--border:#2a2a3d;--border-light:#3a3a50;--text-primary:#e8e8f0;--text-secondary:#8888a0;--text-muted:#5a5a72;--accent:#ff4757;--accent-glow:rgba(255,71,87,0.3);--accent-secondary:#7c3aed;--accent-tertiary:#06d6a0;--gradient-hero:linear-gradient(135deg,#ff4757,#7c3aed);--gradient-card:linear-gradient(145deg,#1a1a26,#12121a);--radius:12px;--radius-sm:8px;--radius-xs:4px;--shadow:0 4px 24px rgba(0,0,0,0.4);--sidebar-width:240px;--admin-bg:#0d0d14;--admin-sidebar:#111118;--admin-accent:#ff4757;--admin-accent-hover:#ff6b7a;--admin-danger:#e74c3c;--admin-success:#06d6a0;--admin-warning:#f39c12;--admin-input-bg:#1a1a26;--admin-border:#2a2a3d;--admin-text:#e8e8f0;--admin-text-muted:#5a5a72}*{margin:0;padding:0;box-sizing:border-box}body,html{height:100%;width:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft 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p{color:var(--text-secondary);font-size:14px}.card{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);padding:24px;transition:all .2s ease}.card:hover{border-color:var(--border-light);background:var(--bg-card-hover)}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));grid-gap:16px;gap:16px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:var(--radius-sm);border:none;font-size:14px;font-weight:600;cursor:pointer;transition:all .15s ease}.btn-primary{background:var(--gradient-hero);color:white}.btn-primary:hover{box-shadow:0 4px 16px var(--accent-glow);transform:translateY(-1px)}.btn-secondary{background:var(--bg-card);border:1px solid var(--border);color:var(--text-primary)}.btn-secondary:hover{background:var(--bg-card-hover);border-color:var(--border-light)}.btn-ghost{background:transparent;color:var(--text-secondary);padding:6px 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