:root{--bg-primary:#000000;--bg-secondary:#0a0a0a;--bg-tertiary:#141414;--glass-bg:rgba(255,255,255,0.03);--glass-border:rgba(255,255,255,0.08);--glass-shadow:rgba(0,0,0,0.8);--accent-primary:#ffffff;--accent-primary-hover:#e5e5e5;--accent-secondary:#a3a3a3;--accent-success:#22c55e;--accent-error:#ef4444;--accent-warning:#f59e0b;--text-primary:#ffffff;--text-secondary:#a3a3a3;--text-muted:#737373;--space-xs:0.5rem;--space-sm:0.75rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--radius-sm:0.5rem;--radius-md:0.75rem;--radius-lg:1rem;--radius-xl:1.5rem;--transition-fast:150ms ease;--transition-base:250ms ease;--transition-slow:350ms ease}.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:.875rem 2rem;font-size:.9375rem;font-weight:600;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);overflow:hidden;white-space:nowrap}.btn:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(45deg,transparent,rgba(255,255,255,.1),transparent);transform:translateX(-100%);transition:transform .6s}.btn:hover:before{transform:translateX(100%)}.btn-primary{background:rgba(255,255,255,.9);color:#000000;box-shadow:0 4px 20px rgba(255,255,255,.2);font-weight:700}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 30px rgba(255,255,255,.3);background:rgba(255,255,255,1)}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-secondary{background:var(--glass-bg);color:var(--text-primary);border:1px solid var(--glass-border);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.btn-secondary:hover:not(:disabled){background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.15)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-loading{pointer-events:none}.btn-spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(0,0,0,.3);border-top-color:#000000;border-radius:50%;animation:spin .6s linear infinite}.btn-text-loading{opacity:.7}@keyframes spin{to{transform:rotate(1turn)}}.input-group{width:100%;margin-bottom:var(--space-lg)}.input-wrapper{position:relative;width:100%}.input-field{width:100%;padding:1.5rem 1.25rem 1rem;font-size:.9375rem;color:var(--text-primary);background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:all var(--transition-base);outline:none}.input-field:focus{border-color:rgba(255,255,255,.3);box-shadow:0 0 0 3px rgba(255,255,255,.05);background:rgba(255,255,255,.05)}.input-field::placeholder{color:var(--text-muted);opacity:0;transition:opacity var(--transition-base)}.input-field:focus::placeholder{opacity:1}.input-label{position:absolute;left:1.25rem;top:.5rem;color:var(--text-muted);font-size:.75rem;pointer-events:none;transition:all var(--transition-base);z-index:1}.input-field:focus+.input-label{color:var(--text-primary)}.input-required{color:var(--accent-error);margin-left:.125rem}.input-error .input-field{border-color:var(--accent-error)}.input-error .input-field:focus{box-shadow:0 0 0 3px rgba(239,68,68,.1)}.input-error-message{display:flex;align-items:center;gap:.375rem;margin-top:.5rem;font-size:.8125rem;color:var(--accent-error);animation:slideDown .3s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-.5rem)}to{opacity:1;transform:translateY(0)}}.card{border-radius:var(--radius-lg);transition:all var(--transition-base)}.card-glass{background:var(--glass-bg);border:1px solid var(--glass-border);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-shadow:0 8px 32px var(--glass-shadow)}.card-solid{background:var(--bg-secondary);border:1px solid rgba(255,255,255,.05)}.card-padding-small{padding:var(--space-md)}.card-padding-medium{padding:var(--space-xl)}.card-padding-large{padding:calc(var(--space-xl) * 1.5)}.card:hover{transform:translateY(-2px);box-shadow:0 12px 40px var(--glass-shadow)}